AU2019399077B2 - Method for Controlling Insect Pests and Acarines, and Aerosol for Controlling Insect Pests and Acarines - Google Patents
Method for Controlling Insect Pests and Acarines, and Aerosol for Controlling Insect Pests and Acarines Download PDFInfo
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- AU2019399077B2 AU2019399077B2 AU2019399077A AU2019399077A AU2019399077B2 AU 2019399077 B2 AU2019399077 B2 AU 2019399077B2 AU 2019399077 A AU2019399077 A AU 2019399077A AU 2019399077 A AU2019399077 A AU 2019399077A AU 2019399077 B2 AU2019399077 B2 AU 2019399077B2
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- aerosol
- control
- acarine
- insect pest
- spray
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- 230000008020 evaporation Effects 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- ZNOLGFHPUIJIMJ-UHFFFAOYSA-N fenitrothion Chemical compound COP(=S)(OC)OC1=CC=C([N+]([O-])=O)C(C)=C1 ZNOLGFHPUIJIMJ-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229940013764 fipronil Drugs 0.000 description 1
- 229940113087 geraniol Drugs 0.000 description 1
- 235000009569 green tea Nutrition 0.000 description 1
- 229940100463 hexyl laurate Drugs 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229940056881 imidacloprid Drugs 0.000 description 1
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 1
- VPRAQYXPZIFIOH-UHFFFAOYSA-N imiprothrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCN1C(=O)N(CC#C)CC1=O VPRAQYXPZIFIOH-UHFFFAOYSA-N 0.000 description 1
- VBCVPMMZEGZULK-NRFANRHFSA-N indoxacarb Chemical compound C([C@@]1(OC2)C(=O)OC)C3=CC(Cl)=CC=C3C1=NN2C(=O)N(C(=O)OC)C1=CC=C(OC(F)(F)F)C=C1 VBCVPMMZEGZULK-NRFANRHFSA-N 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000010656 jasmine oil Substances 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000010501 lemon oil Substances 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 235000001510 limonene Nutrition 0.000 description 1
- 229940087305 limonene Drugs 0.000 description 1
- 229930007744 linalool Natural products 0.000 description 1
- 239000001525 mentha piperita l. herb oil Substances 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 229940105132 myristate Drugs 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 239000004306 orthophenyl phenol Substances 0.000 description 1
- 235000010292 orthophenyl phenol Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019477 peppermint oil Nutrition 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229940067107 phenylethyl alcohol Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- HPYNBECUCCGGPA-UHFFFAOYSA-N silafluofen Chemical compound C1=CC(OCC)=CC=C1[Si](C)(C)CCCC1=CC=C(F)C(OC=2C=CC=CC=2)=C1 HPYNBECUCCGGPA-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
- RROQIUMZODEXOR-UHFFFAOYSA-N triforine Chemical compound O=CNC(C(Cl)(Cl)Cl)N1CCN(C(NC=O)C(Cl)(Cl)Cl)CC1 RROQIUMZODEXOR-UHFFFAOYSA-N 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/20—Poisoning, narcotising, or burning insects
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
- A01N25/06—Aerosols
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
- A01N37/04—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof polybasic
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P7/00—Arthropodicides
- A01P7/02—Acaricides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P7/00—Arthropodicides
- A01P7/04—Insecticides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/011—Crawling insects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S43/00—Fishing, trapping, and vermin destroying
- Y10S43/90—Liquid insecticide sprayer
Abstract
Provided is a pest/mite control method that could maintain a control effect on crawling pests and indoor dust mites for several days simply by applying a pest/mite control aerosol once in an indoor space. The present invention provides a pest/mite control method for performing spray treatment employing a pest/mite control aerosol prepared by filling a propellant and an aerosol undiluted liquid containing a control component and an organic solvent in an aerosol container provided with a fixed-quantity spraying valve with which the spraying quantity per application is 1.0-5.0 ml. The control component is a low-volatility compound having a vapor pressure of less than 1×10
Description
[0001]
The present invention relates to: a method for
controlling insect pests and acarines by a spray treatment
using an insect pest and acarine control aerosol obtained by
filling an aerosol container equipped with a fixed-volume
spray valve having a sprayed amount of 1.0-5.0 mL per
operation with an aerosol-forming material containing a
control component and an organic solvent, and a propellant;
and an aerosol for controlling insect pests and acarines
(insect pest and acarine control aerosol).
[0002]
Some representative types of insecticides that are for
creeping insect pests which move around on the floor surface
and wall such as cockroaches, and house dust acarines, and are
applied to places and passages which are inhabited by those
creeping insect pests and acarines, include (1) fumigants, (2)
single-use aerosols, (3) coating-type aerosols, and (4) bait
agents, which have their own features specific to their respective dosage forms.
[00031
In the case of (1) fumigants and (2) single-use
aerosols, chemicals are quickly released and diffused
throughout an indoor space, which is tightly closed for a
predetermined period of time so that the concentration of the
chemicals is increased, during which humans are not allowed to
enter the space. Therefore, (1) fumigants and (2) single-use
aerosols are classified as medicines. Once these formulations
are applied, the effect of exterminating creeping insect pests
and house dust acarines is sustained for 2-4 weeks. However,
it takes time and effort to conduct preparation before use,
and it is necessary to take measures to pay particular
attention to the safety of chemicals, etc. Therefore, these
dosage forms are not considered to be easy or popular.
[0004]
Meanwhile, (3) coating-type aerosols, which are locally
applied to the surface, and (4) bait agents, which are applied
to the point, are quasi-drugs, which have a mild effect on the
human body. It is easier to use these dosage forms than (1)
fumigants and (2) single-use aerosols. However, (3) coating
type aerosols and (4) bait agents are not applied to the
space, and therefore, have less contact efficiency of
chemicals with insect pests and acarines, and do not
necessarily lead to an efficient extermination method.
[00051
Thus, it has conventionally been considered that there
are difficulties in developing an agent for controlling
creeping insect pests and house dust acarines that is applied
to the space and is classified as a quasi-drug.
[00061
Incidentally, Patent Document 1 discloses a method for
exterminating creeping insect pests by vaporizing and
diffusing an insecticidal liquid containing an insecticidal
component and a solvent into a space, such as an indoor space
or storage space, wherein a compound having a specific
structure is used as the solvent, and the insecticidal liquid
is vaporized and diffused in small portions over time using a
piezoelectric atomizer so that fine particles of the
insecticidal liquid having a small particle size can continue
to be suspended. In the method proposed in Patent Document 1,
a small amount of chemicals continues to be released and
diffused in the space over a long period of time to control
cockroaches, like liquid electric mosquito killers. That
proposed method is for exterminating cockroaches, which are
several tens of times as resistant to chemicals as mosquitoes,
and therefore, requires a more potent insecticidal component,
inevitably leading to a risk to the safety of the human body.
[0007]
In the development of a spatial treatment agent that is
for controlling creeping insect pests and house dust acarines
and that is classified as a quasi-drug, the present inventors have extensively studied and made attempt to create a formulation that can sustain a control effect for several days under practical conditions after a fixed amount of the formulation is atomized once, i.e., a formulation that is basically used once per 1-2 days, and is so safe as to be used even in situations that humans are present, instead of formulations that are used once per 2-4 weeks, such as (1) fumigants and (2) single-use aerosols. As a result, the present inventors have arrived at a very useful
"insect pest and acarine control method" that is effective
not only in controlling creeping insect pests and house dust
acarines, but also in controlling flying insect pests on the
day when the formulation is atomized (see Patent Document 2).
Note that in that invention, in order to additionally
achieve a practical effect of exterminating flying
insect pests, spraying characteristics of an aerosol are
designed such that atomized particles after spraying include
suspendable particles, and adhesive particles that adhere to
the wall surface or the like and settle on the floor
surface, preferably such that 30-80% of all the atomized
particles adhere to the wall surface or the like or settle
on the floor surface by one hour after a spray treatment.
As of the invention disclosed in Patent Document 2, the
sprayed amount of the fixed-volume spray valve is typically
0.2-0.4 mL, and a single treatment with the formulation
basically requires a multiple-push operation (the spray
button is pushed down multiple times).
[00081
Meanwhile, Patent Document 3 discloses a creeping insect
pest extermination aerosol product employing a fixed-volume
spray valve, and a creeping insect pest extermination method.
That aerosol product is characterized in that the portion of a
propellant blended and contained in an aerosol container is
increased and the vapor pressure of a solvent in which an
active component is dissolved is decreased so as to reduce the
evaporation rate of the solvent that has been sprayed from the
aerosol container and has formed particles, whereby the
particles can be diffused deep into gaps and cracks in the
indoor space. That is, the method disclosed in Patent Document
3 may be a fixed-volume spray treatment, and indeed,
corresponds to a local treatment with (3) a coating-type
aerosol, and therefore, is not a spatial treatment. Therefore,
although a high extermination effect may be locally achieved
at some of the gaps and cracks, creeping insect pests cannot
be efficiently exterminated throughout the indoor space.
[00091
Patent Document 1: Japanese Unexamined Patent
Application Publication No. 2009-143868
Patent Document 2: Japanese Patent No. 5517122
Patent Document 3: Japanese Unexamined Patent
Application Publication No. 2018-12676
[0010]
With the above circumstances in mind, the present
inventors have recognized that a spatial fixed-volume spray
treatment based on Patent Document 2 is a most efficient
method for controlling insect pests and acarines, and have
studied and made attempts to improve the convenience thereof,
and particularly, the efficacy thereof in controlling creeping
insect pests and house dust acarines. Firstly, a recently
developed fixed-volume spray valve having a sprayed amount of
1.0-5.0 mL is employed, and a required amount of an active
component is allowed to be sprayed by a single-push operation.
The formation of atomized particles after spraying including
suspendable particles which are suspended in a treated space
and adhesive particles that adhere to exposed portions in the
treated space alone is not sufficient to enhance the control
effect of the spatial treatment on creeping insect pests,
particularly cockroaches or the like. The present inventors
have also concluded that such enhancement is achieved if
adhesive particles are made more dominant compared to the
spraying characteristics of Patent Document 2, and the
proportion of adhesive particles that settle on the floor
surface is increased compared to adhesive particles that adhere to the wall surface or the like. The present inventors have also found that the specific gravity of the aerosol-forming material and the spray force of the aerosol are an important factor in the determination of the behavior of adhesive particles that settle, and have repeatedly conducted testing through trial and error to identify optimum ranges of the specific gravity of the aerosol-forming material and the spray force of the aerosol and thereby arrive at the present invention.
[0011]
In some embodiments, the present invention provides: a
method for controlling insect pests and acarines in which a
control effect on creeping insect pests and house dust acarines
is sustained for several days only by pushing an insect pest and
acarine control aerosol equipped with a 1.0-5.0 mL volume fixed
volume spray valve once in an indoor space; and an aerosol for
controlling insect pests and acarines.
[0011a]
The term "comprise" and variants of the term such as
"comprises" or "comprising" are used herein to denote the
inclusion of a stated integer or stated integers but not to
exclude any other integer or any other integers, unless in the
context or usage an exclusive interpretation of the term is
required.
[0011b]
Any reference to any prior art in this specification is
not, and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge.
[0012]
Various embodiments of the present invention are given in
the following paragraphs.
[1] A method for controlling insect pests and acarines by
a spray treatment using an insect pest and acarine control
aerosol obtained by filling an aerosol container equipped with
7a a fixed-volume spray valve having a sprayed amount of 1.0-5.0 mL per operation with an aerosol-forming material containing a control component and an organic solvent, and a propellant, wherein the control component is a poorly volatile and diffusible compound having a vapor pressure of less than 1 x 10
-4 mmHg at 30°C,
the aerosol-forming material has a specific gravity of
0.85-1.15,
the insect pest and acarine control aerosol has a
spray force of 10-50 gf at a spray distance of 5 cm, and
the aerosol-forming material is sprayed into an indoor
space in the spray treatment such that the amount of the
control component released is 0.1-50 mg/m 3 , and 60% or more of
the control component is diffused and adheres to an entire
floor surface of the indoor space by one hour after the
spraying.
[2] The method according to [1], wherein
the insect pest and acarine control aerosol is
configured such that 5 represented by expression (1) is in the
range of 1.0-30:
5 = [a/(a + b)] x S2 x F (1)
where a represents the contained amount of the aerosol-forming
material, b represents the contained amount of the propellant,
S represents the specific gravity of the aerosol-forming
material, and F represents the spray force of the insect pest and acarine control aerosol.
[3] The method according to [2], wherein
the insect pest and acarine control aerosol is
configured to satisfy:
0.1 [a/(a + b)] 0.5 (2).
[4] The method according to [2] or [3], wherein
the insect pest and acarine control aerosol is
configured to satisfy:
3.0 5 15 (3).
[5] The method according to any one of [1]-[4], wherein
the poorly volatile and diffusible compound is at least
one creeping insect pest control compound selected from the
group consisting of phenothrin, cyphenothrin, permethrin,
cypermethrin, cyfluthrin, bifenthrin, fenpropathrin,
tralomethrin, etofenprox, and dinotefuran.
[6] The method according to any one of [1]-[4], wherein
the poorly volatile and diffusible compound is at least
one acarine control compound selected from the group
consisting of amidoflumet, benzyl benzoate, phenyl salicylate,
benzyl salicylate, dibutyl sebacate, dipropyl sebacate,
dibutyl adipate, diethyl phthalate, dibutyl phthalate, and p
menthane-3,8-diol.
[7] The method according to any one of [1]-[6], wherein
the organic solvent is a lower alcohol having 2 or 3
carbon atoms.
[8] The method according to any one of [1]-[7], wherein
the area of the floor surface of the indoor space is
7.5-26.6 M 2
[9] . An insect pest and acarine control aerosol obtained
by filling an aerosol container equipped with a fixed-volume
spray valve having a sprayed amount of 1.0-5.0 mL per
operation with an aerosol-forming material containing a
control component and an organic solvent, and a propellant,
wherein
the control component is a poorly volatile and
diffusible compound having a vapor pressure of less than 1 x
10-4 mmHg at 30°C,
the aerosol-forming material has a specific gravity of
0.85-1.15,
the insect pest and acarine control aerosol has a spray
force of 10-50 gf at a spray distance of 5 cm, and
when the aerosol-forming material is sprayed into an
indoor space in a single-spray treatment through the fixed
volume spray valve such that the amount of the control
component released is 0.1-50 mg/m 3 , 60% or more of the control
component is diffused and adheres to an entire floor surface
of the indoor space by one hour after the spraying.
[0013]
With the insect pest and acarine control method and insect pest and acarine control aerosol of the present invention, only by spraying a specific insect pest and acarine control aerosol containing a poorly volatile and diffusible compound into an indoor space by a single-push operation, a control effect particularly on creeping insect pests and house dust acarines can be sustained in the treated zone for several days. Thus, a convenient and effective insect pests and acarines control method and insect pest and acarine control aerosol are provided, which are significantly practical.
[0014]
In the present invention, a poorly volatile and
diffusible compound having a vapor pressure of less than 1 x
104 mmHg at 300C is used as a control component. After a
spray treatment is performed in an indoor space by pushing an
insect pest and acarine control aerosol of the present
invention once (a single-push operation), most of the control
component settles as adhesive particles on the floor surface
to exhibit an excellent control effect particularly on
creeping insect pests and house dust acarines in the indoor
space. As used herein, the extermination effect based on the
knockdown effect and the lethal effect, and the repellent
effect, are collectively referred to as a "control effect." In
most situations, control is practically achieved by a
sufficient repellent effect even if the extermination effect 11 is low.
[0015]
Specifically, based on the recognition that a spatial
fixed-volume spray treatment based on Patent Document 2 is a
most efficient method for controlling insect pests and
acarines, the present invention is directed to an improvement
in the convenience thereof, and particularly, in the efficacy
thereof in controlling creeping insect pests and house dust
acarines. Firstly, a recently developed fixed-volume spray
valve having a sprayed amount of 1.0-5.0 mL is employed so
that a required amount of an active component is allowed to be
sprayed by a single-push operation. In order to enhance the
control effect of the spatial treatment on creeping insect
pests, particularly cockroaches or the like, it is important
that adhesive particles are made more dominant in atomized
particles after spraying (including suspendable particles and
adhesive particles), and the proportion of adhesive particles
that settle on the floor surface is increased compared to
adhesive particles that adhere to the wall surface. Based on
such a concept, the present invention has been achieved. Note
that the adhesive particles of the present invention enter
gaps and cracks or hiding places during settlement, and
therefore, if a pyrethroid compound is used as a control
component, the flushing-out effect of causing cockroaches or
the like to leave gaps and cracks or hiding places, can be
sufficiently expected.
[00161
As the poorly volatile and diffusible control component
used in the present invention, creeping insect pest control
compounds for mainly controlling creeping insect pests such as
cockroaches, and/or acarine control compounds for mainly
controlling house dust acarines, can be used. Examples of the
creeping insect pest control compound include: pyrethroid
compounds such as phenothrin, cyphenothrin, permethrin,
cypermethrin, cyfluthrin, bifenthrin, fenpropathrin,
tralomethrin, etofenprox, and imiprothrin; silicon-based
compounds such as silafluofen; organic phosphorus-based
compounds such as dichlorvos and fenitrothion; carbamate
compounds such as propoxur; neonicotinoid compounds such as
dinotefuran, imidacloprid, and clothianidin; fipronil; and
indoxacarb. Of them, phenothrin, cyphenothrin, permethrin,
cypermethrin, cyfluthrin, bifenthrin, fenpropathrin,
tralomethrin, etofenprox, and dinotefuran are preferable. Note
that if there are optical or geometrical isomers based on
asymmetric carbon at an acid moiety or alcohol moiety of a
pyrethroid compound, these individual isomers and any
combinations thereof can, of course, be included in the
present invention.
[0017]
Examples of the acarine control compound include
amidoflumet, benzyl benzoate, phenyl salicylate, benzyl
salicylate, dibutyl sebacate, dipropyl sebacate, dibutyl adipate, diethyl phthalate, dipropyl phthalate, dibutyl phthalate, p-menthane-3,8-diol, 3-iodo-2-propynyl butylcarbamate, phenothrin, and DEET. Of them, amidoflumet, benzyl benzoate, phenyl salicylate, benzyl salicylate, dibutyl sebacate, dipropyl sebacate, dibutyl adipate, diethyl phthalate, dibutyl phthalate, p-menthane-3,8-diol, phenothrin, and DEET are preferable.
[0018]
In the insect pest and acarine control method of the
present invention, a fixed small amount of the aerosol-forming
material containing a control component and an organic solvent
is sprayed into a space. The control component content of the
aerosol-forming material is preferably about 1.0-70 w/v%. If
the control component content of the aerosol-forming material
is less than 1.0 w/v%, the desired control effect is not
obtained. If control component content of the aerosol-forming
material is more than 70 w/v%, there are difficulties in
stabilizing the liquidity of the aerosol-forming material.
[0019]
In the present invention, in addition to the above
poorly volatile and diffusible control component, another
control component that has a vapor pressure of not less than 2
x 10-4 mmHg and less than 1 x 10-2 mmHg at 300C and is volatile
and diffusible at room temperature may be added so that after
a spatial spray treatment, some of atomized particles remain
suspended in the air so that a control effect can be exhibited on flying insect pests. Examples of the control component that is volatile and diffusible at room temperature include metofluthrin, profluthrin, transfluthrin, empenthrin, terallethrin, and furamethrin. It has been demonstrated that when the control component that is volatile and diffusible at room temperature, and the poorly volatile and diffusible control component, together partially adhere to the floor surface or the wall surface, these components can exhibit a synergistic control effect on creeping insect pests and/or house dust acarines. Note that as the control component that is volatile and diffusible at room temperature, metofluthrin, profluthrin, and transfluthrin are preferable in terms of vapor pressure, stability, basic insecticidal efficacy, or the like. If there are optical or geometrical isomers based on asymmetric carbon at an acid moiety or alcohol moiety of these compounds, these individual isomers and any combinations thereof can, of course, be included in the present invention.
[0020]
In the present invention, an organic solvent for
dissolving the poorly volatile and diffusible control
component is added to form the aerosol-forming material.
Examples of the organic solvent include: lower alcohols having
two or three carbon atoms; hydrocarbon solvents such as normal
paraffin and isoparaffin; ester solvents such as isopropyl
myristate (IPM) and hexyl laurate; glycol ether solvents
having 3-10 carbon atoms; and ketone solvents. Of them, lower alcohols having two or three carbon atoms, such as ethanol and isopropanol (IPA), are preferable.
[0021]
In the insect pest and acarine control method of the
present invention, the insect pest and acarine control aerosol
containing the poorly volatile and diffusible control
component is used to perform a spray treatment in an indoor
space, where the sprayed amount thereof is 1.0-5.0 mL per
operation. As a result, in the space thus treated, the effect
of controlling creeping insect pests and/or house dust
acarines is sustained for several days. The size of the indoor
space is preferably a volume of 18.8-33.3 m3 (area: 7.5-13.3
M2 , height: 2.2-3.0 m) corresponding to a room of 4.5-8 Jyo
(Jyo is a Japanese unit of area: 1 Jyo is equal
to approximately 1.66 M 2 ).
[0022]
The atomized particles after spraying are formed as
suspendable particles that are suspended in the treated space,
or adhesive particles that adhere to an exposed portion in the
treated space. The present inventors have made attempts to
make adhesive particles more dominant, and to increase the
ratio of adhesive particles that settle on the floor surface
to adhesive particles that adhere to the wall surface or the
like. As a result, the present inventors have found that the
specific gravity of the aerosol-forming material and the spray
force of the aerosol are important factors that determine the settling behavior of adhesive particles, and have identify the optimum ranges thereof. Specifically, it has been demonstrated that if the specific gravity of the aerosol-forming material is 0.85-1.15, preferably 0.89-1.10, and the spray force of the spray treatment is 10-50 gf, preferably 15-35 gf, at a spray distance of 5 cm, 60% or more of the control component settles and adheres to the entire floor surface in the indoor space by one hour after spraying, so that an excellent effect of controlling creeping insect pests and acarines can be exhibited. Concerning the "settlement and adhesion of the control component to the entire floor surface," it is not necessary to actually confirm the settlement and adhesion of the control component to the entire floor surface each time spraying is conducted. When the aerosol is sprayed in a space to be treated in a manner as specified in the present invention, then even if the sprayed control component slightly non-uniformly or irregularly settles and adheres to the floor surface, the control component can be assumed to settle and adhere throughout the floor surface, which does not pose a problem with practical use. If the specific gravity of the aerosol-forming material is less than 0.85, the amount of atomized particles adhering to the floor surface tends to be insufficient. Conversely, if the specific gravity of the aerosol-forming material is more than 1.15, atomized particles settle too quickly to spread sufficiently over the entire floor surface. If the spray force of the spray treatment is less than 10 gf, the spray force tends not to be enough to sufficiently spread over the entire floor surface. If the spray force is more than 50 gf, good ability to spread is not obtained. Note that the spray force of the aerosol can be suitably adjusted by changing the composition of the aerosol-forming material, the internal pressure of the aerosol, the shape of the outlet, or the like.
[0023]
Furthermore, in the insect pest and acarine control
aerosol, 5 represented by expression (1) below is preferably in
the range of 1.0-30, more preferably 3.0-15:
5 = [a/(a + b)] x S2 x F (1)
where a represents the contained amount of the aerosol-forming
material, b represents the contained amount of the propellant,
S represents the specific gravity of the aerosol-forming
material, and F represents the spray force of the insect
pest and acarine control aerosol.
[0024]
If 5 is in the range of 1.0-30, then when atomized
particles settle, a sufficient amount of the control component
uniformly spreads over the entire floor surface, resulting in a
preferable control effect. The uniform spread of the control
component over the entire floor surface is considered to be
attributed to the appropriate initial speed of atomized
particles sprayed from the insect pest and acarine control
aerosol, and the quick spread of the atomized particles throughout the indoor space after spraying. If5 is less than
1.0, the amount of the control component adhering to the floor
surface may be insufficient. Meanwhile, if 5 is more than 30,
the spread may be insufficient with respect to the entire
floor surface. Therefore, if 5 is not in the range of 1.0-30,
a satisfactory control effect is less likely to be exhibited.
[0025]
In the insect pest and acarine control aerosol, the
volume ratio [a/ (a + b)] of the contained amount (a) of the
aerosol-forming material to the total volume (a + b) of the
insect pest and acarine control aerosol preferably satisfies
the following expression.
0.1 [a/(a + b)] 0.5 (2)
If the volume ratio is in the above range, a sufficient
amount of the control component uniformly spreads over the
entire floor surface. If the volume ratio is less than 0.1 and
the propellant is too much, the amount of the control
component adhering to the floor surface is insufficient.
Meanwhile, if the volume ratio is more than 0.5, atomized
particles settle too quickly to spread sufficiently over the
entire floor surface.
[0026]
As the insect pest and acarine control aerosol used in
the present invention is sprayed in a small amount, it is not
necessary to take measures against the risk of catching fire.
However, the insect pest and acarine control aerosol may be a water-based formulation in order to reduce the risk of catching fire to the extent possible. In that case, the amount of water contained in the aerosol-forming material is preferably about 20-70 v/v%, and a slight amount of a non ionic surfactant may be added as a solubilizing aid in the range that does not affect the spray pattern of atomized particles. Examples of the non-ionic surfactant include: ethers such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, and polyoxyethylene alkyl amino ethers; fatty acid ester such as polyethylene glycol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene glycerol fatty acid esters; polyoxyethylene styrenated phenol; and polyalkanolamides of fatty acids. Of them, the above ethers are suitable.
[0027]
The aerosol-forming material can optionally contain, in
addition to the above components, antifungal, antimicrobial,
and microbicidal agents for molds, fungi, and the like, and
fragrances, deodorants, stabilizers, antistatic agents,
defoamers, excipients, and the like. Examples of antifungal,
antimicrobial, and microbicidal agents include hinokithiol, 2
mercaptobenzothiazole, 2-(4-thiazolyl)benzimidazole, 5-chloro
2-methyl-4-isothiazoline-3-one, triforine, 3-methyl-4
isopropylphenol, and ortho-phenylphenol. Examples of
fragrances include, but are not limited to, fragrant components such as orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, yuzu oil, jasmine oil, cypress oil, green tea essential oil, limonene, a-pinene, linalool, geraniol, phenylethyl alcohol, amylcinnamic aldehyde, cuminaldehyde, and benzyl acetate, and aroma components mixed with leaf alcohol or leaf aldehyde, called "green leaf volatiles."
[0028]
Examples of the propellant used in the present invention
include liquefied petroleum gas (LPG), liquefied gases of
dimethyl ether, hydrofluorocarbon, and the like, nitrogen gas,
carbon dioxide gas, nitrous oxide, and compressed gases such
as compressed air. One or more of these gases can be
suitably used. The propellant may be suitably selected,
taking into account the percentage of adhesion of atomized
particles to the floor surface or the wall. It is typically
easy to use a gas mainly containing LPG. Note that the gauge
pressure of the propellant is preferably adjusted to 0.1-0.7
MPa (200C) for use.
[0029]
The insect pest and acarine control aerosol is equipped
with a fixed-volume spray valve having a sprayed amount of
1.0-5.0 mL per operation. The insect pest and acarine
control aerosol is used for a fixed-amount spray
treatment in an indoor space. While conventional fixed
volume spray valves
have a spray amount of 0.2-0.4 mL, the fixed-volume spray valve used in the present invention can spray a required amount of an active component by a single-push operation because of the increased volume. In addition, the shapes of the outlet, nozzle, container, and the like can be suitably selected according to use, purpose, and the like.
For example, the container may be designed as a tabletop
container equipped with ia pusiparty button awdich
diagonabbye upwarda nozzle, or as a small-size portable
container.
[00301
The insect pest and acarine control method of the
present invention is designed such that the insect pest and
acarine control aerosol thus obtained is used to perform a
spray treatment into the air in an indoor space, where the
sprayed amount is 1.0-5.0 mL per operation, preferably 1.0-3.0
mL per operation, whereby the amount of the control component
released into the air is 0.1-50 mg/m 3 , preferably 0.5-50 mg/m 3 . When the spray treatment is performed in an indoor space
having a volume of 18.8-33.3 m3 (area: 7.5-13.3 M2 , height:
2.2-3.0 m) corresponding to a room of 4.5-8 Jyo, the amount of
the control component released into the air is typically 0.1
50 mg/m 3 by a single-spray operation of the aerosol-forming
material. In the case of an indoor space having a greater
volume, the aerosol-forming material may be sprayed by a
multiple-spray operation depending on the volume of the indoor
space so that the amount of the control component released into the air is 0.1-50 mg/m 3 , whereby a similar control effect can be obtained irrespective of the size of an indoor space. For example, when a spray treatment is performed in an indoor space having a volume of 37.6-66.6 m3 (area: 15
26.6 M2 , height: 2.2-3.0 m) corresponding to a room of 9-16
Jyo, the amount of the control component released into the
air is 0.1-50 mg/m 3 by a double-spray operation of the
aerosol-forming material. If the frequency of use of the
insect pest and acarine control aerosol is basically once
per 1-2 days, and the amount of the control component
released is in the above range in each operation, the control
effect on creeping insect pests and/or house dust acarines
can be maintained for a number of days. In addition, by
using a control component that is volatile and diffusible at
room temperature in conjunction with the above control
component, the effect of controlling flying insect pest can
be imparted to the insect pest and acarine control method.
[0031]
The insect pest and acarine control method of the
present invention is particularly effective in controlling:
cockroaches, such as Blattella germanica (German cockroach),
Periplaneta americana (American cockroach), and Periplaneta
fuliginosa (smokybrown cockroach); ants; insects of the genus
Cimex (bed bugs), such as Cimex lectularius and Cimex
hemipterus; creeping insect pests such as Tribolium castaneum
(red flour beetle), Sitophilus zeamais (maize weevil),
Xestobium rufovillosum, Armadillidium vulgare, and Porcellio
scaber (common rough woodlouse); and house dust acarines, such
as Tyrophagus putrescentiae (cheese mite), Dermatophagoides
farinae (American house dust mite), Dermatophagoides
pteronyssinus (European house dust mite), and Cheyletiella.
However, in addition to these creeping insect pests and
acarines, the insect pest and acarine control method of
the present invention is sufficiently applicable to
control of insect pests that fly in a room and are harmful
and annoying to humans, such as mosquitoes (Culex pipiens
pallens, Aedes albopictus, etc.), non-biting midges,
houseflies, drain flies, black flies, horseflies, bees and
wasps, and leafhoppers.
Examples
[0032]
The insect pest and acarine control method and insect
pest and acarine control aerosol of the present invention will
be described in greater detail using specific examples and
example tests. Note that the present invention is not limited
to these examples.
[0033]
(Example 1)
An aerosol-forming material was formulated by dissolving
53 w/v% of phenothrin and 0.7 w/v% of metofluthrin in ethanol.
An aerosol container (pressure-resistant container) with a
fixed-volume spray valve having a sprayed amount of 1.0 mL was
filled with 12 mL of the aerosol-forming material (a) and 18 mL of liquefied petroleum gas (b) as a propellant under pressure so that the volume ratio [a/ (a + b)] of the aerosol forming material is 0.4, to obtain an insect pest and acarine control aerosol of Example 1. The specific gravity of the aerosol-forming material was 0.93, and the spray force of the aerosol was 26 gf at a spray distance of 5 cm. In addition,5 was 9.0.
[0034]
A spray treatment was performed by spraying the insect
pest and acarine control aerosol slightly diagonally upward
once (single-push operation) at the center of a substantially
airtightly closed room having a volume of 25 m3 (6-Jyo room,
area: 10 M 2 ). The percentage (%) of adhesion of the control
component to the floor surface was calculated based on the
result of analysis by gas chromatography described below and
the amount of the control component released from the
aerosol. As a result, it was demonstrated that 72% of all
atomized particles sprayed by the spray treatment (i.e.,
72% of the amount of the control component released) settled
and adhered to the entire floor surface by one hour
after the spray treatment. An excellent control effect
was exhibited on creeping insect pests such as cockroaches,
ants, and Xestobium rufovillosum for several days after the
hpuay tiresctmen3 irand were repelled. Alternatively, a spray
treatment was performed by spraying the insect pest and
acarine control aerosol slightly diagonally upward twice
(double-push operation) at the center of a substantially
airtightly closed room having a volume of 50 m3 (12-Jyo
room, area: 20 M 2 ). As a result, as in the case of the room
having a volume of 25 M3 , it was demonstrated that the
effect of controlling creeping insect pests was exhibited.
[00351
(Examples 2-24 and Comparative Examples 1-4)
Various insect pest and acarine control aerosols shown
in Table 1 were prepared in a manner similar to that of
Example 1. Note that an aerosol container with a fixed-volume
spray valve having a sprayed amount of 1.0 mL was used for the
insect pest and acarine control aerosols of Examples 2-21, 23,
and 24 and Comparative Examples 1, 3, and 4, a fixed-volume
spray valve having a sprayed amount of 2.2 mL was used for the
insect pest and acarine control aerosol of Example 22, and a
fixed-volume spray valve having a sprayed amount of 0.4 mL was
used for the insect pest and acarine control aerosol of
Comparative Example 2.
[0036]
Table 1
Aerosol-forming material (a) (w/v%) Amount of Spray control Propellant Volume Specific forc & copoen Control Organic Other (b) ratio gravity force ) component component solvent components (gf/5 cr) released 3 L_ _(mg/m
) 1 Phenothrin 53 Ethanol balance Metofluthrin LPG 0.4 0.93 26 9 8.6 0.7 2 Phenothrin 53 Ethanol balance - LPG 0.3 0.93 26 6.7 6.4 3 Phenothrin 53 Ethanol balance - LPG 0.2 0.93 26 4.5 4.2 4 Phenothrin 53 Ethanol balance - LPG 0.5 0.93 26 11 11 5 Phenothrin 53 Ethanol balance - [PG 0.5 0.93 34 15 11 6 Phenothrin 53 Neothiozol balance - LPG 0.15 0.91 26 3.2 3.2 7 Permethrin 60 Ethanol balance - LPG 0.2 0.99 26 5.1 4.8 8 Permethrin 60 Ethanol balance - LPG 0.5 0.99 26 13 12 9 Permethrin 60 Neothiozol balance - LPG 0.5 0.98 26 12 12 10 Permethrin 60 Neothiozol balance - LPG 0.2 0.98 14 2.7 4.8 11 Permethrin 70 IPM balance - LPG 0.1 1.05 28 3.1 2.8
12 Cyphenothrin Neothiozol balance Lavender oil LPG, 0.1 0.87 26 2 1.5 tz38 small amount DME 13 Tralomethrin 55 IPM balance - LPG 0.5 1.12 26 16 11 LU 14 Tralomethrin55 IPM balance - LPG 0.4 1.12 28 14 8.8 15 Tralomethrin 55 IPM balance - LPG 0.2 1.12 26 6.5 4.4 16 Tralomethrin 55 Ethanol balance - LPG 0.2 1.09 15 3.6 4.4
17 Benzyl Ethanol balance - LPG 0.3 0.93 26 6.7 6 benzoate 50
18 Dibutyl IPM balance - LPG 0.35 0.9 26 7.4 7 sebacate 50
19 Dibutyl Ethanol balance - LPG 0.4 0.87 26 7.9 8 sebacate 50
20 Phenothrin 53 Ethanol balance Transfluth LPG 0.4 0.93 26 9 8.6 0.7111 21 Permethrin 70 IPM balance - LPG 0.5 1.05 39 21 14
22 ' Phenothrin 53 IPM balance - LPG 0.3 0.96 45 12 14 23 Phenothrin 53 Ethanol balance - LPG 0.4 0.93 15 5.2 8.5 24 Permethrin 60 Ethanol balance - LPG 0.4 0.99 15 5.9 9.6
o 1 - Ethanol balance Empenthrin LPG 0.3 0.87 26 5.9 6 50
c2 Phenothrin 53 Ethanol balance - LPG 0.3 0.93 6.4 1.7 2.6 3 Phenothrin 15 Ethanol balance - [PG 0.3 0.83 26 5.4 1.8 4 Tralomethrin 70 IPM balance - LPG 0.3 1.2 26 11 8.4 A meterng spray valve having a sprayed amount of 2.2 mL was used. 2 A metering spray valve having a sprayed amount of 0.4 mL was used.
[0037]
The insect pest and acarine control aerosols of Examples
1-24 and Comparative Examples 1-4 were used to conduct tests
below. For house dust acarines, the extermination effect was
first assessed, and the repellent effect was then assessed if
the extermination effect was poor. The test results are shown
in Table 2.
[00381
(1) Extermination Effect on Creeping Insect Pests
A total of 12 glass plates of 20 x 20 cm (4 plates
for each of Blattella germanica (German cockroach),
Periplaneta americana (American cockroach), and Formica
japonica) were placed at four corners of a closed room
having a volume of 25 m 3 (area: 10 M2 ). A plastic ring having
a diameter of about 20 cm was put on each glass plate,
predetermined test insects (Blattella germanica (German
cockroach): five female adults, Periplaneta americana
(American cockroach): five larvae, and Formica japonica:
five insects) were released in each ring and allowed to
freely move around. The test aerosol was sprayed slightly
diagonally upward at the center of the room once (a single
push operation) (sprayed amounts: 1.0 mL in Examples 1
21, 23, and 24 and Comparative Examples 1, 3, and 4, 2.2 mL in
Example 22, and 0.4 mL in Comparative Example 2). After
exposure to the chemicals for 24 hours, the glass plate was
transferred together with the ring containing the test insects
to another room, in which the test insects were fed, and the
fatality rate of the test insects was calculated after another
24 hours.
[00391
(2) Extermination Effect on House Dust Acarines
Eight deep petri dishes having a diameter of 9 cm and a
height of 6 cm (four for each of Dermatophagoides farinae
(American house dust mite) and Tyrophagus putrescentiae
(cheese mite)) were placed at four corners of a closed room
having a volume of 25 m 3 (area: 10 M2 ), and about 200 acarines
of each predetermined acarine type were put in the deep petri
dish for testing. The test aerosol was sprayed slightly
diagonally upward at the center of the room once (a single
push operation). After exposure to the chemicals for 24 hours,
the fatality rates of the test acarines were calculated.
[0040]
(3) Repellent Effect on House Dust Acarines
In the above "(2) Extermination Effect on House Dust
Acarines" test, a cotton cloth having a diameter of about 4 cm
was placed at the four corners of the room instead of the test
acarines, and the test aerosol was sprayed once (a single-push
operation). The cotton cloth was removed 24 hours after
spraying, and fitted into a petri dish having a diameter of 4
cm, and 50 mg of an attraction medium was put at the center of
the petri dish. Apart from this, about 10,000 test acarines of
Dermatophagoides farinae (American house dust mite) and
Tyrophagus putrescentiae (cheese mite) were released together
with a medium into a petri dish having a diameter of 9 cm, and
the previously prepared petri dish having a diameter of 4 cm was put at the center of the petri dish having a diameter of 9 cm. Likewise, a non-treated zone was prepared using a cotton cloth which was not treated with the test aerosol. The number of acarines entering the cotton cloth was counted 24 hours later. The acarine repellent rate was calculated by the following expression.
Acarine repellent rate (%) [(the number of acarines
entering the non-treated zone - the number of acarines
entering the treated zone)/the number of acarines entering the
non-treated zone] x 100
[0041]
(4) Adhesion Rate of Control Component to Floor Surface
Six to eight glass plates of 20 x 20 cm were placed and
equally spaced throughout the floor surface in a closed room
having a volume of 25 m 3 (area: 10 M2 ) . The test aerosol was
sprayed slightly diagonally upward at the center of the room
once (a single-push operation). All of the glass plates were
removed one hour after the spray treatment. The adhering
control component was removed by washing with acetone and
analyzed by gas chromatography. Based on the obtained analysis
value, the theoretical ratio of the control component settling
and adhering to the floor surface by one hour after the spray
treatment to the total amount of the sprayed control component
(floor surface adhesion rate) was calculated. In addition,
variations in the control component adhering to the glass plate between each glass plate were analyzed to assess the diffusion uniformity of the atomized particles. The results were rated on a scale of A, B, C, and D in order of diffusion uniformity, where A indicates the highest diffusion uniformity.
[00 42]
Table 2
Cre eping insect pest Acarine fatality rate (%) Acarine repellent rate(% fat~aIity rate~% Nfoor surface Diffusion BlatteIIa PeripIaneta Formica Dermatophagoides Tyrophagus De rmatoph agoides Tyrophagus 00einatuioi germawica americana japonica farinae putrescentiae faririae putrescentiae
1 100 100 100 -- 100 100 72 A 2 100 100 100 1 - - 100 100 70 A 3 100 1 100 100 - - 100 100 71 A 4 100 100 100 - - 100 100 15 A 5 100 100 100 - - 100 100 73 A 6 100 95 90 - - 100 90 67 A- B 7 100 100 100 1 - - 100 100 72 A 8 100 100 100 - 100 100 74 A 9 100 95 100 - - 100 95 68 A- B 10 95 90 95 - - 95 90 63 A -B 11 90 100 95 - - 90 100 69 A- B -12 90 90 90 - - 95 85 61 A- B E x 13 95 85 85 - - 90 85 69 B 14 95 95 90 - - 90 90 11 A- B 15 85 90 95 - - 90 95 74 A 16 90 100 85 - - 85 90 70 A -B 17 45 35 90 100 100 - - 74 A 18 35 30 45 70 65 95 95 75 A 19 25 20 40 55 508 561 A 20 100 100 100 - - 100 100 73 A 21 95 90 85 - -90 90 64 B 22 90 95 95 - -90 100 66 B 23# 100 100 100 - -100 100 85 A - B 24 95 100 90 - - 90 95 91 B
1 20 15 30 - - 30 1546 B-'C ~2 75 65 80 - - 65 55 57 0 CL E x3 70 55 65 -- 60 50 53 D 4 75 65 70 -- 65 60 69 D
The test results demonstrated that in the insect pest
and acarine control method of the present invention using the
insect pest and acarine control aerosols of Examples 1-24,
atomized particles are substantially uniformly diffused
throughout the floor surface, and 60% or more of the control
component settles and adheres to the floor surface by one hour
after spraying. It was also demonstrated that when the insect
pest and acarine control aerosols of Examples 1-16 and 20-24,
which contain a creeping insect pest control compound as the
poorly volatile and diffusible control component, have an
excellent control effect on both creeping insect pests and
house dust acarines. It was also demonstrated that when the
insect pest and acarine control aerosols of Examples 17-19,
which contain an acarine control compound as the poorly
volatile and diffusible control component, have an excellent
control effect on house dust acarines.
[0044]
In contrast to this, in Comparative Examples 1-4, a
sufficient control effect was not obtained on any of creeping
insect pests and house dust acarines. It is considered that in
Comparative Example 1, the aerosol contains, as a control
component, only a pyrethroid compound that is volatile and
diffusible at room temperature, such as empenthrin, and as a
result, the floor surface adhesion rate was reduced, and
therefore, the control effect was reduced. It is considered
that in Comparative Example 2, in which a fixed-volume spray valve having a sprayed amount of 0.4 mL was used, a required sprayed amount of the control component was not obtained by a single-push operation, and therefore, the control effect was reduced. It is considered that in the case where the specific gravity of the aerosol-forming material was not in the range of 0.85-1.15 specified in the present invention like Comparative Examples 3 and 4, the reduced diffusion uniformity of atomized particles is responsible for the reduction of the control effect.
[0045]
The insect pest and acarine control method and insect
pest and acarine control aerosol of the present invention are
applicable for the purpose of control of insect pests and
acarines in indoor spaces and wider ranges.
Claims (9)
1. A method for controlling insect pests and
acarines by a spray treatment using an insect pest and acarine
control aerosol obtained by filling an aerosol container
equipped with a fixed-volume spray valve having a sprayed
amount of 1.0-5.0 mL per operation with an aerosol-forming
material containing a control component and an organic
solvent, and a propellant, wherein
the control component is a poorly volatile and
diffusible compound having a vapor pressure of less than 1 x
10-4 mmHg at 30°C,
the aerosol-forming material has a specific gravity of
0.85-1.15,
the insect pest and acarine control aerosol has a spray
force of 10-50 gf at a spray distance of 5 cm, and
the aerosol-forming material is sprayed into an indoor
space in the spray treatment such that the amount of the
control component released is 0.1-50 mg/m 3 , and 60% or more of
the control component is diffused and adheres to an entire
floor surface of the indoor space by one hour after the
spraying.
2. The method according to claim 1, wherein
the insect pest and acarine control aerosol is
configured such that 5 represented by expression (1) is in the range of 1.0-30:
5 = [a/(a + b)] x S2 x F (1)
where a represents the contained amount of the aerosol-forming
material, b represents the contained amount of the propellant,
S represents the specific gravity of the aerosol-forming
material, and F represents the spray force of the insect pest
and acarine control aerosol.
3. The method according to claim 2, wherein
the insect pest and acarine control aerosol is
configured to satisfy:
0.1 [a/(a + b)] 0.5 (2).
4. The method according to claim 2 or 3, wherein
the insect pest and acarine control aerosol is
configured to satisfy:
3.0 5 15 (3).
5. The method according to any one of claims 1-4,
wherein
the poorly volatile and diffusible compound is at least
one creeping insect pest control compound selected from the
group consisting of phenothrin, cyphenothrin, permethrin,
cypermethrin, cyfluthrin, bifenthrin, fenpropathrin,
tralomethrin, etofenprox, and dinotefuran.
6. The method according to any one of claims 1-4,
wherein
the poorly volatile and diffusible compound is at least
one acarine control compound selected from the group
consisting of amidoflumet, benzyl benzoate, phenyl salicylate,
benzyl salicylate, dibutyl sebacate, dipropyl sebacate,
dibutyl adipate, diethyl phthalate, dibutyl phthalate, and p
menthane-3,8-diol.
7. The method according to any one of claims 1-6,
wherein
the organic solvent is a lower alcohol having 2 or 3
carbon atoms.
8. The method according to any one of claims 1-7,
wherein
the area of the floor surface of the indoor space is
7.5-26.6 M2 .
9. An insect pest and acarine control aerosol
obtained by filling an aerosol container equipped with a
fixed-volume spray valve having a sprayed amount of 1.0-5.0 mL
per operation with an aerosol-forming material containing a
control component and an organic solvent, and a propellant,
wherein
the control component is a poorly volatile and diffusible compound having a vapor pressure of less than 1 x 10
-4 mmHg at 30°C,
the aerosol-forming material has a specific gravity of
0.85-1.15,
the insect pest and acarine control aerosol has a
spray force of 10-50 gf at a spray distance of 5 cm, and
when the aerosol-forming material is sprayed into an
indoor space in a single-spray treatment through the fixed
volume spray valve such that the amount of the control
component released is 0.1-50 mg/m 3 , 60% or more of the control
component is diffused and adheres to an entire floor surface
of the indoor space by one hour after the spraying.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-234658 | 2018-12-14 | ||
| JP2018234658 | 2018-12-14 | ||
| PCT/JP2019/047561 WO2020121931A1 (en) | 2018-12-14 | 2019-12-05 | Pest/mite control method and pest/mite control aerosol |
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| AU2019399077A1 AU2019399077A1 (en) | 2021-07-01 |
| AU2019399077B2 true AU2019399077B2 (en) | 2022-09-15 |
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| AU2019399077A Active AU2019399077B2 (en) | 2018-12-14 | 2019-12-05 | Method for Controlling Insect Pests and Acarines, and Aerosol for Controlling Insect Pests and Acarines |
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| Country | Link |
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| JP (3) | JP6718568B1 (en) |
| KR (2) | KR102619497B1 (en) |
| CN (2) | CN115568465A (en) |
| AU (1) | AU2019399077B2 (en) |
| SG (1) | SG11202106323YA (en) |
| TW (1) | TWI824081B (en) |
| WO (1) | WO2020121931A1 (en) |
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| WO2021157271A1 (en) * | 2020-02-05 | 2021-08-12 | 大日本除蟲菊株式会社 | Pest control aerosol and pest control method |
| CN115023138A (en) * | 2020-03-13 | 2022-09-06 | 大日本除虫菊株式会社 | Quantitative spray aerosol product for controlling specific harmful substances, and method for controlling specific harmful substances using same |
| JP7111877B2 (en) * | 2020-10-28 | 2022-08-02 | 大日本除蟲菊株式会社 | Aerosol for controlling pests and mites, and method for controlling pests and mites |
| WO2023095849A1 (en) * | 2021-11-26 | 2023-06-01 | アース製薬株式会社 | Pest control method and aerosol for pest control |
| CN114631520B (en) * | 2022-02-18 | 2023-09-08 | 肖功宝 | Termite prevention and control is with attracting wood piece dislocation separation treatment facility |
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Also Published As
| Publication number | Publication date |
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| TWI824081B (en) | 2023-12-01 |
| WO2020121931A1 (en) | 2020-06-18 |
| AU2019399077A1 (en) | 2021-07-01 |
| JP7046120B2 (en) | 2022-04-01 |
| CN113194719A (en) | 2021-07-30 |
| KR102619497B1 (en) | 2023-12-28 |
| KR20230113656A (en) | 2023-07-31 |
| SG11202106323YA (en) | 2021-07-29 |
| JPWO2020121931A1 (en) | 2021-02-15 |
| KR102655095B1 (en) | 2024-04-04 |
| JP2022081662A (en) | 2022-05-31 |
| KR20210087996A (en) | 2021-07-13 |
| CN113194719B (en) | 2023-01-17 |
| JP2020152728A (en) | 2020-09-24 |
| TW202027605A (en) | 2020-08-01 |
| CN115568465A (en) | 2023-01-06 |
| JP6718568B1 (en) | 2020-07-08 |
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Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ METHOD FOR CONTROLLING INSECT PESTS AND ACARINES, AND AEROSOL FOR CONTROLLING INSECT PESTS AND ACARINES |
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