JPH07179308A - Composite acaricide composition - Google Patents

Abstract

PURPOSE:To obtain a composite acaricide composition exhibiting an excellent acaricidal effect in a lower concentration than those cases in which single agent is separately applied and exhibiting an excellent fast-acting property and an excellent residual effect. CONSTITUTION:This composite acaricide composition contains (A) 1 pt.wt. of 2-(2,6-difulorophenyl)-4-(2-ethoxy-4-tertiary butylphenyl)-2-oxazoline and (B) 0.1-20 pts.wt of a compound selected from 14 kinds of known acaricidal compounds consisting of B1: tertiary-butyl-4-[(1,3-dimethyl-5-phenoxypyrazol-4-yl) methyleneiminooxymethyl]benzoate, B2: 2-tertiary buthyl-5-(4-tertiary buthylbenzylthio)-4-chloropyridazin-3(2H)-one, B3: N-(4-tertiary buthylbenzyl)-4- chloro-3-ethyl-1-methyl-5-pyrazole carboxamide, B4: 2-(acetyloxy)-3-dodecyl-1,4- naphthaolenedione, etc.

Description

Detailed Description of the Invention

[0001]

The present invention relates to 2- (2,6-difluorophenyl) -4- (2-ethoxy-4-tert-butylphenyl) -2-oxazoline (hereinafter referred to as compound A).
And at least one known compound having acaricidal activity are used as active ingredients.

[0002]

2. Description of the Related Art The development of biocides for controlling agricultural and horticultural pests, forest pests, livestock pests and sanitary pests is still in widespread use today.
A wide variety of drugs are put to practical use. However,
Conventional acaricides lack the balance of lethal efficacy, fast-acting effect, residual effect, osmotic transferability, etc.Although they are excellent in acaricidal activity, they are toxic to humans and seafood, or useful insects and natural enemies. It is hard to say that the safety against such things has always been satisfactory. Further, in particular, there has been a demand for the establishment of a control technique for resistant pests whose sensitivity to various drugs has been reduced due to long-term use, and further for the development of drugs for lowering the amount of dropped drug and cost.

[0003]

In view of the above situation, the present inventors are investigating more effective utilization of compound A which is effective as an acaricide, and in combination with various existing acaricidal active compounds. I repeated a lot of research. As a result, the composition obtained by combining the compound A and the compound selected from the compounds having the known acaricidal activity exhibits excellent acaricidal activity which cannot be predicted as compared with the case where each compound is used alone. The present invention has been completed by finding that it can be exerted.

That is, the present invention relates to compound A and tertiary butyl-4-[(1,3-dimethyl-5-
Phenoxypyrazol-4-yl) methyleneiminooxymethyl] benzoate (hereinafter referred to as compound 1), 2-
Tert-Butyl-5- (4-tert-butylbenzylthio) -4-chloropyridazin-3 (2H) -one (hereinafter referred to as compound 2), N- (4-tert-butylbenzyl) -4-chloro-3 -Ethyl-1-methyl-5-pyrazolecarboxamide (hereinafter referred to as compound 3), 5-chloro-N- {2,3-dimethyl-4- (2
-Ethoxyethyl) phenoxyethyl} -6-ethyl-
4-pyrimidine amine (hereinafter referred to as compound 4), 2-
(Acetyloxy) -3-dodecyl-1,4-naphthalenedione (hereinafter referred to as compound 5), dimethyl-2,2-
Dichlorovinyl phosphate (hereinafter referred to as compound 6),
Hexakis (β, β-dimethylphenethyl) distannoxane (hereinafter referred to as compound 7), isopropyl 4,4-dibromobenzylate (hereinafter referred to as compound 8), 1,1-
Bis (chlorophenyl) -2,2,2-trichloroethanol (hereinafter referred to as compound 9), ethyl 4,4-dichlorobenzylate (hereinafter referred to as compound 10), 2- (4-tert-butylphenoxy) cyclohexylprovinyl Sulfito (hereinafter referred to as compound 11), 2, 4, 5,
4'-tetrachlorodiphenyl sulfone (hereinafter referred to as compound 1
2), parachlorophenylparachlorobenzenesulfonate (hereinafter referred to as compound 13), and 1,5-bis (2,4-dimethylphenyl) -3-methyl-1,
Provided is a composite acaricidal composition comprising, as an active ingredient, at least one known acaricidal compound selected from 3,5-triazapenta-1,4-diene (hereinafter referred to as compound 14). It is a thing.

In the composition of the present invention, the compound A was already filed by the applicant of the present invention and published in PCT International Application Publication W092 /
It is the compound disclosed in Japanese Patent Publication No. 00559. Compound 1 is disclosed in JP-A-63-183564, compound 2 is disclosed in JP-A-60-4173, and compound 3 is disclosed in JP-A-64-18364.
No. 25763, Compound 4 is disclosed in JP-A-62-67, Compound 5 is disclosed in JP-A-52-48648, and Compounds (6 to 14) are contained in The Pesticide m.
annual 9th edition 1991 (The british
Crop protection council) and the like.

As will be shown in the test examples below, the composition of the present invention was unexpectedly found to show a synergistic effect in which the sum of acaricidal efficacy is obviously large as compared with the case of applying each single agent. did. In particular, it shows acaricidal effect at a lower concentration than each of them alone against eggs of spider mites that parasitize agricultural and horticultural crops (eg vegetables, fruit trees and trees), and shows excellent fast-acting and residual effects. It was

The composition of the present invention can be applied as a controlling agent for a wide variety of agricultural and horticultural crops and / or various mites that cause harmful effects on epidemics. Specific examples thereof include the spider mites (Tetranychus urticae) and the spider mites (Tetranychus Kanzawa).
i), Apple Mite (Panychus ulm)
i), citrus red mite, Panonychus citr
i), citrus rust mite (Aculops peleka)
ssi), Green rust mite (Calacaruscar)
inatus), Rana mite (Acaphyl)
la theae), apple rust mite (Aculus)
schlechtendali), Pear mite (Ep
itrimerus pyri), Physcomitrella patens (T)
Yrophagus putrescentiae),
Dermatophagoides
farinae), Haemaphysalis longicornis (Haemap)
hysalis longicornis, Haemaphysalis magesh
imaensis) and the like.

In the composition of the present invention, the compound A and the known compounds (1-14) having acaricidal activity can be used as they are, but usually, they are used as various inert liquids, solids or gaseous carriers. The active compound of the present invention is retained and, if necessary, an auxiliary agent such as a surfactant, a dispersant, a sticking agent, a wetting agent, a propellant, a stabilizer, etc. is added, and a powder, granules, emulsion, oil, It is convenient to use it in the form of a wettable powder, a sol, a flowable agent, an aerosol, a coating agent, a fumigant, a fumigant, an ULV agent and the like.

Examples of the liquid carrier include water, aromatic hydrocarbons such as xylene, toluene, benzene and dimethylnaphthalene; chlorinated hydrocarbons such as chlorobenzene, chloromethylene, chloroethylene and carbon tetrachloride. Etc .; Aliphatic or alicyclic hydrocarbons such as benzine, cyclohexane, hexane etc .; Alcohols,
Examples thereof include ethanol, propanol, butanol, etc .; ketones such as acetone, methyl ethyl ketone, cyclohexanone, etc.

Examples of the solid carrier include natural mineral powders such as bentonite, talc, clay, kaolin, montmorillonite, diatomaceous earth and calcium carbonate; synthetic mineral powders such as alumina and silicate.

Examples of the surfactant include alkyl sulfates, alkyl sulfonates, polyoxyethylene glycol ethers, polyoxyethylene glycol esters, polyhydric alcohol esters and the like.

Examples of the fixing agent and the dispersant include casein, gelatin, arabic gum, alginic acid, lignin, bentonite, polyvinyl alcohol and the like.

Examples of the stabilizer include PAP (isopropyl phosphate), BHT (2,6-di-tert-butyl-4-methylphenol), TCP (tricresyl phosphate), vegetable oil, mineral oil, surfactant. , Fatty acids or esters thereof, and the like.

Examples of the propellant include liquefied petroleum gas, dimethyl ether, fluorocarbon and the like.

The mixing ratio of the compound A and the known acaricidal compound (1 to 14) in the composition of the present invention is not strictly limited, and may be in a wide range depending on their kind, dosage form, use and the like. Can be changed over time, but usually
It is suitable to use the latter in an amount of 0.01 to 30 parts by weight, preferably 0.1 to 20 parts by weight, relative to 1 part by weight of the former. The total content can generally be in the range 0.01 to 90% by weight, preferably 0.1 to 80% by weight.

The effective dose of the composition of the present invention varies depending on the formulation form, application period, application site, application method, type of pest, degree of damage, etc.
About 0.1 to 1000 as the total amount of active ingredients per 0 are
g, and preferably in the range of 5 g to 500 g.

The composition of the present invention can be applied to pests or a place where pests live, for example, by spraying, spraying, dusting, dusting, fumigating or the like directly or by using a device. Further, the composition of the present invention, other insecticides, nematicides, acaricides, fungicides, herbicides, plant growth regulators, synergists, fertilizers, soil improvers, animal feed, etc. It may be further compounded, or may be simultaneously used without compounding.

[0018]

EXAMPLES Next, the composition of the present invention will be described in more detail with reference to formulation examples and test examples, but the present invention is not limited to these examples. In addition, in the formulation examples, “part” means “part by weight”.

Formulation Example 1: Dust: 1 part of compound A, 3 parts of compound 10 and 96 parts of a uniform mixture of diatomaceous earth and clay are uniformly mixed and pulverized to obtain a powder. At the time of use, 1 to 5 kg of the above-mentioned powder per 10 ares can be directly sprayed on the plants with a dusting machine.

Formulation Example 2: Granules Compound A 2 parts, compound 9 3 parts, bentonite 40 parts,
50 parts of clay and 5 parts of lignin sulfonate are uniformly mixed and pulverized, water is added and kneaded, and then granulated and dried to obtain granules. At the time of use, 1 to 5 kg of the above-mentioned granules per 10 ares can be directly sprayed on plants by a granulator.

Formulation Example 3: Wettable powder 10 parts of compound A, 20 parts of compound 7, 5 parts of higher alcohol sulfate ester salt, and 65 parts of clay are uniformly mixed and pulverized by a jet air mill to obtain a wettable powder. In use, the wettable powder may be diluted 500 to 3000 times and sprayed in an amount of 100 to 600 liters per 10 ares.

Formulation Example 4: Wettable powder 10 parts of compound A, 10 parts of compound 1, 5 parts of polyoxyethylene styryl phenyl ether sulfate salt, and 75 parts of clay are uniformly mixed and pulverized by a jet air mill to obtain a wettable powder. . When using the above wettable powder 500 to 30
It can be diluted by a factor of 00 to spray 100 to 600 liters per 10 ares.

Formulation Example 5: Emulsion Emulsion is obtained by uniformly mixing 5 parts of compound A, 10 parts of compound 2, 8 parts of polyoxyethylene alkylaryl ether, 5 parts of dinaphthylmethane disulfonate and 72 parts of xylol. When using the above emulsion,
It can be diluted 0 times to spray 100 to 600 liters per 10 ares.

Formulation Example 6: Emulsion Emulsion is obtained by uniformly mixing 10 parts of compound A, 10 parts of compound 3, 7 parts of polyoxyethylene styryl phenyl ether, 3 parts of alkylallyl sulfonate and 70 parts of xylol. When used, the above emulsion should be used in the range of 1000-5000.
It can be diluted twice and sprayed at 100 to 600 liters per 10 ares.

Formulation Example 7: Flowable agent 5 parts of polyoxyethylene styryl phenyl ether sulfate salt, 20 parts of 1% xanthan gum aqueous solution, 3 parts of smectite minerals and 52 parts of water are uniformly dissolved to obtain 10 parts of compound A and 2 parts of compound 2. After adding 10 parts and stirring well, wet milling is carried out with a sand mill to obtain a flowable agent. In use, the flowable agent can be diluted 1000 to 5000 times and sprayed at 100 to 600 liters per 10 ares.

Test Example 1: Oviposition test of Nymphalid mites On the leaf pieces of Phellinus linteus, on which Nicaria spp. 6 ml of the reagent solution diluted to the component amount was sprayed. After 4 days from the treatment with the chemical solution, the hatching of the eggs was investigated and the ovicidal rate was calculated. The theoretical ovicidal rate (%) and the synergistic index (%) were calculated by the following formulas.

[0027]

[Equation 1] theoretical value ovicidal rate (%) = A + {(100−A) ×
B} / 100 Synergistic effect index (%) = {ovicidal rate (%) / theoretical value ovicidal rate (%)} × 100 where A is the ovulatory rate (%) of the compound A, and B is the compound (1 to 1).
14) Each ovicidal rate (%) is shown. The results are shown in Table 1
6 shows.

[0028]

[Table 1]

[0029]

[Table 2]

[0030]

[Table 3]

[0031]

[Table 4]

[0032]

[Table 5]

[0033]

[Table 6]

Test Example 2: Ovicidal test of resistant Kanzawa mites Emulsion obtained according to the above Preparation Example 5 on leaf pieces of Phellinus linteus on which resistant Kanzawa mites eggs (3 to 4 days old eggs) were laid. 6m of reagent solution diluted with a predetermined amount of active ingredient
1 was sprinkled. After 4 days from the treatment with the chemical solution, the hatching of the eggs was investigated and the ovicidal rate was calculated. The theoretical ovicidal rate (%) and the synergistic index (%) were calculated by the following formulas.

[0035]

[Equation 2] theoretical value ovicidal rate (%) = A + {(100−A) ×
B} / 100 Synergistic effect index (%) = {ovicidal rate (%) / theoretical value ovicidal rate (%)} × 100 where A is the ovulatory rate (%) of the compound A, and B is the compound (1 to 1).
14) Each ovicidal rate (%) is shown. The results are shown in Table 7-
12 shows.

[0036]

[Table 7]

[0037]

[Table 8]

[0038]

[Table 9]

[0039]

[Table 10]

[0040]

[Table 11]

[0041]

[Table 12]

[0042]

EFFECTS OF THE INVENTION The composition of the present invention has a high controlling effect against pests of the order Acarina with a low dose which cannot be controlled sufficiently by each compound as is clear from the above test examples.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication (A01N 43/76 43:54) (A01N 43/76 37:02) (A01N 43/76 57: 12) (A01N 43/76 55:04) (A01N 43/76 37:10) (A01N 43/76 31:04) (A01N 43/76 41:04) (A01N 43/76 41:10) (A01N 43 / 76 35:10)

Claims (1)

[Claims] 1. 2- (2,6-difluorophenyl)-
It is characterized by containing 4- (2-ethoxy-4-tert-butylphenyl) -2-oxazoline and at least one of the compounds having the known acaricidal activity of the following (1) to (14) as active ingredients. Composite acaricide composition. (1) tert-Butyl-4-[(1,3-dimethyl-5-phenoxypyrazol-4-yl) methyleneiminooxymethyl] benzoate (2) 2-tert-butyl-5- (4-tert-butylbenzyl) Thio) -4-chloropyridazine-3
(2H) -one (3) N- (4-tert-butylbenzyl) -4-
Chloro-3-ethyl-1-methyl-5-pyrazolecarboxamide (4) 5-chloro-N- {2,3-dimethyl-4- (2
-Ethoxyethyl) phenoxyethyl} -6-ethyl-
4-Pyrimidineamine (5) 2- (acetyloxy) -3-dodecyl-1,4
-Naphthalenedione (6) dimethyl-2,2-dichlorovinyl phosphate (7) hexakis (β, β-dimethylphenethyl) distannoxane (8) isopropyl 4,4-dibromobenzylate (9) 1,1-bis ( Chlorphenyl) -2,2,2-
Trichloroethanol (10) Ethyl 4,4-dichlorobenzylate (11) 2- (4-Tertiarybutylphenoxy) cyclohexylprovinylsulfito (12) 2,4,5,4'-Tetrachlorodiphenylsulfone (13) ) Parachlorophenyl parachlorobenzene sulfonate (14) 1,5-bis (2,4-dimethylphenyl)-
3-methyl-1,3,5-triazapenta-1,4-diene