CN106818888B - A kind of Pesticidal combination and its application containing destruxins and Nylar - Google Patents
A kind of Pesticidal combination and its application containing destruxins and Nylar Download PDFInfo
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- CN106818888B CN106818888B CN201710198300.9A CN201710198300A CN106818888B CN 106818888 B CN106818888 B CN 106818888B CN 201710198300 A CN201710198300 A CN 201710198300A CN 106818888 B CN106818888 B CN 106818888B
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- Prior art keywords
- destruxins
- nylar
- pesticidal combination
- mosquito
- pesticidal
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- 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
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
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- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
Abstract
The present invention relates to a kind of Pesticidal combinations with synergistic effect, the Pesticidal combination mixes destruxins (gram) using destruxins and Nylar as primary activity ingredient, in following ratio: Nylar (gram)=1:(1-99).It can be applicable to the sanitary insect pests such as the white mosquito class of prevention and treatment, flies, termite, preferably the Dipteras sanitary insect pest such as prevention and treatment mosquitos and flies after two kinds of effective components mixing of Insecticidal combinations of the present invention.
Description
Technical field
The invention belongs to technical field of pesticide, and in particular to a kind of Pesticidal combination containing destruxins and Nylar and its
Preparation method and application.
Background technique
Destruxins (destruxin) are also known as destruxin or destroy element, are made of 5 amino acid and 1 carboxylic acid
Ring contracting carboxylic peptide toxin, a kind of secondary metabolite generated in the metabolic process for green muscardine fungus, to Lepidoptera, Homoptera, double
20 various pests such as wing mesh, Isoptera, Orthoptera, coleoptera have action of contace poison, stomach poison function and Antifeedant Effects；Destruxins
There is synergistic effect with certain entomogenous fungis or commodity Mixture Use of Insecticides, such as with beauveria bassiana, Paecilomyces javanicus, green muscardine fungus
The mixed preventive effect that can be significantly improved to Bemisia tabaci, prodenia litura, grub etc.；It is mixed with Bt, avermectin, imidacloprid etc. also to show
The preventive effect improved to choristoneura fumigerana, diamondback moth and Bemisia tabaci is write, and there is efficient, shelf life length, not vulnerable to environment item
The features such as part influences, control efficiency is stablized.Currently, destruxins are mainly used in the prevention and treatment of Agriculture field pests.
Nylar is a kind of phenylate class insect growth regulator, IGR, is the chitin synthesis inhibitors of juvenile hormone type, tool
Have the characteristics that efficiently, dosage is few, the lasting period is long, to crop safety, to fish low toxicity, it is small to eco-environmental impact, can be used for
Prevent and treat Homoptera, Thysanoptera, Diptera, lepidoptera pest.It on the inhibiting effect of insect show influence insect husking and
Breeding.To mosquitos and flies class sanitary insect pest, the 4 instar larvae low dosage this product in later period lead to stage death of pupating, and inhibit adult shape
At can also prevent and treat sweet potato whitefly and scale insect.Pyriproxyfen also has interior suction transfer activity, can influence the children for being hidden in vacuum side of blade
Worm.But Nylar is maximum the disadvantage is that the control efficiency to adult is unobvious.
Aedes albopictus (Aedes albopictus Skuse) is a variety of entomophilas such as dengue fever and popular anisotropic meningitis
The important communication media of disease, he is distributed extensively, and population quantity is big, and movable season is long, sucks people's blood, it is considered to be important is worldwide
The sanitary insect pest of half house type.Currently, the prevention and treatment of aedes albopictus, still based on chemical prevention, many reagent toxicities are bigger than normal, right
Ecological environment is unfriendly.Aedes albopictus also generates medium/high resistance to the medicament that part is used for a long time.Therefore, it is necessary to utilize environment
Friendly, unique pharmaceutical preparations of the mechanism of action prevent and treat aedes albopictus.
It is the important method for overcoming or delaying drug resistance, green muscardine fungus using pesticide combination technology or mixing application technique
Element is used in mixed way with Nylar, is increased medicament to the action site of pest, is delayed raising of the pest to medicament drug resistance；Expand
The big desinsection worm state of medicament, not only has effects that long-term killing, but also can quickly kill to the ovum of aedes albopictus, larva
It goes out adult, controls insect density.Therefore, destruxins and the optimal mixed ratio of Nylar are screened, will be of great significance.This
Invention is destruxins to be applied to prevention and treatment aedes albopictus for the first time in the world, and develop answering for destruxins and Nylar for the first time
With insecticide.
Summary of the invention
The purpose of the present invention is overcoming the technical deficiency of existing insect hormone, a kind of new and effective desinsection group is provided
Object is closed, the application of destruxins Nylar Pesticidal combination can reduce environmental pollution, reduce pesticide residue, delay pest anti-
Property, reduce Pesticide use amount, increase desinsection worm state.
It is a further object of the present invention to provide the use that destruxins Nylar Pesticidal combination is applied to prevention and treatment mosquito, fly
On the way.
The invention is realized by the following technical scheme:
A kind of Pesticidal combination of the invention, containing destruxins and Nylar, the destruxins and the Nylar
Mix in following ratio: the grams ratio of the destruxins and the Nylar is 1:(1-99), preferred destruxins and institute
The grams ratio for stating Nylar is 1:(1-89).
Preferably, the composition is made of destruxins, Nylar and adjuvant.
Composition pesticide of the present invention in practical application, adopted according to environment prepare by known method be configured to granule,
Aqueous emulsion, suspending agent, microemulsion use.
The auxiliary element that composition pesticide of the present invention uses includes solvent, emulsifier, wetting agent, dispersing agent, is total to emulsion, is steady
Determine agent, thickener, PH regulator, film forming agent, packing agent etc. be beneficial to effective component it is stable in the formulation and play drug effect
Know substance, be all various composition commonly used or allowed to use in pesticidal preparations, specific ingredient and dosage pass through according to recipe requirements
Test determines.
Product described in the invention can be provided in the form of finished product preparation, i.e., each substance has mixed in composition, be applied
Prescription formula: a kind of progress that granule can spread fertilizer over the fields, ditch spread, cave are applied etc., aqueous emulsion, suspending agent, microemulsion use spraying side
Formula carries out.
The destruxins are the pure substance or mixture of A containing destruxins, B, C, D, E, and the Nylar is containing pyrrole third
The pure substance or mixture of ether.
Composition pesticide of the present invention can be applicable to prevention and treatment sanitary insect pest, preferably mosquito control.Formulation rate is according to worm kind, insect population
Density, worm age and the conditions differences such as worm state are determined through simple experiment.
The present invention has the advantages that there is apparent synergistic effect, with single dose pesticide in 1. Pesticidal combinations of the invention
It compares, insecticidal toxicity significantly improves；2. the usage amount of pesticide is reduced, environmental pollution is reduced；3. the present invention be destruxins for the first time
For preventing and treating sanitary insect pest, it is used in compounding the usage amount for reducing destruxins, reduces use cost；4. by two kinds of mechanism of action
Entirely different farm chemical ingredients are compounded, and target site is increased, and insect is made to be not likely to produce drug resistance；5. the composition after compounding
Not only there is preferable control efficiency to the ovum of pest, larva, pupa, but also can effectively kill adult, controls insect density.
Specific embodiment
The present invention is further detailed combined with specific embodiments below, but the present invention is not limited thereto.Implement
Percentage in example refers both to weight percent, and the destruxins refer both to effective quantity, and the amount of the Nylar is effective quantity, real
Border is converted when preparing according to active compound content used, and the amount of deviation is adjusted by filling adding amount.
Embodiment 1: the measurement of destruxins and Nylar to aedes albopictus co-toxicity
Test reagent: destruxins original powder (Agricultural University Of South China), Nylar raw medicine (the raw limited public affairs of agriculture biochemical product in Shanghai
Department).
Subjects: aedes albopictus 2-3 instar larvae (Aedes albopictus Skuse)
Test method: according to WHO larva immersion method.It is test chamber that test, which is used uniformly 500ml beaker, passes through preliminary experiment
Suitable concentration gradient scope is selected, 5 concentration gradients are set in appropriate concentration range, and drug concentration is with dechlorination tap water difference
It prepares, and using dechlorination tap water as blank control.Every glass is put into three age in days children mosquitos 50 and all processing is placed in 25 DEG C
Insulating box, periodicity of illumination 12:12；Relative humidity is 60 ± 5%.After 5 days, dead young mosquito number is observed and recorded, is repeated 3 times, root
Data according to investigations calculate the corrected mortality of each processing.And mixture is calculated using Sun Yunpei's Method referring to NY/T1154.1-2006
Co-toxicity coefficient (CTC value).If compareing death rate < 5%, do not correct；The death rate is compareed between 5%-20%, is corrected；
Death rate > 20% is compareed, test need to reform.Using the logarithm of drug concentration (mg/L) as independent variable x, with corrected mortality
Probit value is dependent variable y, establishes virulence regression equation respectively, and the LC of single dose and each proportion mixture is calculated using spss software50、
95% confidence limit and its mixture co-toxicity coefficient, compare synergy situation.It is drawn according to the effect of NY/T11547.7-2006 insecticide combination
Minute mark is quasi-: co-toxicity coefficient (CTC value) >=120 shows as synergistic effect；Co-toxicity coefficient (CTC value) >=120 shows as synergistic effect；
Co-toxicity coefficient (CTC value)≤80 shows as antagonism；80 < co-toxicity coefficients (CTC value) < 120 shows as summation action.With
SPSS data processing software is for statistical analysis, calculates the LC of each medicament50, the activity of reagent agent is evaluated with this.
The co-toxicity coefficient (CTC value) of mixture is calculated according to the following formula:
In formula:
ATI- mixture surveys toxicity index；
The LC of S- standard pesticide agent50, unit is milligrams per liter；
The LC of M- mixture50, unit is milligrams per liter.
TTI=TIA × PA+TIB × PB
In formula:
TTI-mixtures theoretical toxicity index；
TIA-A medicament toxicity index；
Percentage composition of PA-A medicament in mixture, unit are percentage；
TIB-B medicament toxicity index；
Percentage composition of PB-B medicament in mixture, unit are percentage.
In formula:
CTC-co-toxicity coefficient；
AT-mixture surveys toxicity index；
TTI-mixtures theoretical toxicity index.
The co-toxicity coefficient (CTC) of compounding agent:
Table 1 is the different for examination of the Pesticidal combination of the destruxins (A) and Nylar (B) of the invention containing different proportion
Activity (the LC of medicament50), the testing result of co-toxicity coefficient (CTC).Destruxins (A) and Nylar it can be seen from 1 result of table
(B) mass ratio is 1:(1-89) apparent synergistic effect is shown, wherein with destruxins: Nylar (mass ratio)=1:
59 synergistic effects are most obvious, destruxins: Nylar (mass ratio)=1:99 shows summation action.
Measurement of the 1 destruxins Nylar of table to aedes albopictus co-toxicity
A: destruxins B: Nylar
Embodiment 2: the formula and processing method of destruxins Nylar granule.
Above-mentioned formula is crushed in proportion, is stirring evenly and then adding into granulation disc in investment blender plus water is made
Grain, the dry case of the particle made is dried, cooling, and sieving packs and 6% destruxins Nylar granule is made.
Embodiment 3: the formula and processing method of destruxins Nylar aqueous emulsion.
It by the destruxins, the Nylar, methanol, xylene solvent, sequentially adds in mixing kettle, stirs evenly,
Until completely dissolved be added alkyl polyglycol ether, lignosulfonates, isobutanol, xanthan gum, butylated hydroxyarisol,
Ethylene glycol, deionized water high shear 1 hour, obtain aqueous emulsion Pesticidal combination, filling.
Embodiment 4: the formula and processing method of destruxins Nylar suspending agent.
By the Nylar, destruxins, styrene phenol polyoxyethylene ether, styrene phenol polyoxyethylene ether phosphate
Salt, styrene phenol alkyl phenol ammonium salt, fatty acid alkyl, organosilicon, aluminium-magnesium silicate, sodium benzoate, 50% GPE and deionization
Water sequentially adds in mixing kettle, stirs evenly, and is sanded into sand mill, be sanded to 90% partial size less than 5 microns after enter
High shear dispersion kettle.Xanthan gum spent glycol is dipped to addition high shear dispersion kettle after xanthan gum is completely dissolved, after sand milling
Material, it is remaining that 50% GPE is high together cuts 30 minutes.Feeding detection, it is filling after qualified.
Embodiment 5: the formula and processing method of destruxins Nylar microemulsion.
By the destruxins measured, Nylar, methanol, cyclohexanone, epoxy ethane-epoxy propane block copolymerization
Object, alkyl phenyl polyglycol ether, styrene phenol alkyl phenol ammonium salt, ethylene glycol are sufficiently mixed, are mixed with being pumped into compounding kettle
After the oily phase of homogeneous transparent, it is slowly added into distilled water or deionized water under stiring, forms WO emulsion, then through stirring
Heating is mixed, is allowed to be converted to oil-in-water emulsion, is filtered after being cooled to room temperature, is store after detection is qualified with being pumped to finished product
Tank, qualified material enters automatic packaging machine, filling rear up to Pesticidal combination.
Embodiment 6: outdoor utility test 1:
This development test group designs destruxins, Nylar, at destruxins Nylar composition (1:60) 3 altogether
Reason, every processing select 2.5 × 10-2Mg/litre is effective component concentration.Select unified specification, the plastic barrel 12 of volume > 10 liter
It is a, it is respectively used to test group and control group.Bucket is placed in outdoor bosky meadow, is covered at night and with rainwater day, every barrel adds
Entering 10 liters of Mosquito Breeding Habitats sewage, " the net basket " for observing young mosquito is placed on water body surface layer, 10 centimetres of net basket diameter is 5 centimetres deep, and
The upper edge of bucket is hung on iron wire hook, nets the interior aedes albopictus children mosquito 50 for placing 2 to 3 ages in days, and is launched a little, equivalent and raised
Material.Control and every equal three buckets of processing, i.e., in triplicate, wherein control group is the sewage that any medicament is not added.Young mosquito quantity is mended
It fills and death condition is investigated: for the efficiency time for observing drug to be measured, adding young mosquito in every circumferential direction net basket after application and count to 50
Item, while moisturizing is to 10 liters.Mosquito is put into second day in bucket and institutes an inquiry since the childhood, and timing is investigated once weekly later, observes and records
The pupa skin number that young mosquito, the death toll of pupa, completion are sprouted wings.
It is analyzed and processed using EXCLE software.It is invalid to be wherein then considered as when the control group children mosquito death rate > 20%.
Corrected mortality=(the dead young dead young mosquito number of mosquito number-control of processing)/for trying young mosquito number
Adult mosquito number/observation young mosquito sum × 100% in eclosion rate=observation period
Dead children mosquito in the death rate=observation period, pupa and adult mosquito number/observation young mosquito sum without departing from pupa skin ×
100%.
Drug effect of the 2 outdoor test Chinese medicine of table to Aedes Albopictus Larva
Outdoor utility result (table 2) Pesticidal combination of the invention has a higher preventive effect to the larva of aedes albopictus, 2 after medicine
It the death rate is from reaching 57.33%, and 9 days after medicine, whole dead larvaes, drug effect is apparently higher than the processing of single dose, embodies excellent
Different quick-acting.37 days after medicine, eclosion rate only reaches 3%, therefore, Pesticidal combination of the invention can effectively control lineae ablicantes she
The insect density of mosquito.
Embodiment 7: outdoor utility test 2:
Testing ground is located in one woods of Agricultural University Of South China, area about 2000m2, select one and trial zone condition phase else
Seemingly and relatively independent place (is not administered) as check plot, synchronizes test.It will be hung equipped with the hanging cage of 30 aedes albopictus
In selected region (9 cage of trial zone, 3 cage of check plot), hanging cage is away from ground 0.5-2m, away from spray point 10m, be administered personnel along
The edge of trial zone upwind is at the uniform velocity administered to trial zone.After 1h, all test worms are taken back into laboratory and are normally raised, observation is for 24 hours
Death toll.Corrected mortality is calculated with Abbott formula.
Effect of 3 medicament of table in outdoor prevention and treatment aedes albopictus adult mosquito
| Medicament | Spray value aimg/m2 | Mosquito death rate % for 24 hours | Check plot mosquito death rate % |
| Destruxins Nylar | 0.1 | 100.0 | 0 |
| Destruxins | 0.1 | 100.0 | 0 |
| Nylar | 0.4 | 3.7 | 0 |
Outdoor utility result (table 3) shows the inventive composition destruxins Nylar with 0.1aimg/m2Use
Dosage is for 24 hours 100% to the preventive effect of aedes albopictus adult, hence it is evident that is higher than Nylar single dose 0.4aimg/m2The preventive effect of dosage,
It is suitable with the preventive effect of destruxins single dose same dose.But the cost of destruxins occupies high, the use of identical preventive effect after compounding
Cost substantially reduces.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (6)
1. a kind of Pesticidal combination containing destruxins and Nylar, which is characterized in that the Pesticidal combination contains green muscardine fungus
Element and Nylar, the destruxins and the Nylar are mixed in following ratio: the grams of the destruxins and the pyrrole
The grams ratio of propyl ether is 1:(1-89).
2. Pesticidal combination according to claim 1, which is characterized in that the destruxins be A containing destruxins, B, C,
D, the pure substance or mixture of E, the Nylar are the pure substance or mixture of pyriproxyfen-containing.
3. Pesticidal combination according to claim 1, which is characterized in that the Pesticidal combination is by destruxins, pyrrole third
Ether and adjuvant composition.
4. Pesticidal combination according to claim 1, which is characterized in that the use dosage form of the Pesticidal combination is particle
Agent, suspending agent, aqueous emulsion or microemulsion.
5. application of the Pesticidal combination described in one of claim 1-4 in terms of preventing and treating Diptera sanitary insect pest.
6. the application of Pesticidal combination according to claim 5, which is characterized in that the preferred mosquito of Diptera sanitary insect pest
Fly.
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| CN103385251A (en) * | 2012-05-12 | 2013-11-13 | 陕西韦尔奇作物保护有限公司 | Insecticidal composition comprising pyriproxyfen |
| CN104255772A (en) * | 2014-09-02 | 2015-01-07 | 肇庆市真格生物科技有限公司 | Sanitary pest insecticidal composition containing thiamethoxam and pyriproxyfen and application thereof |
| CN105746523A (en) * | 2012-05-16 | 2016-07-13 | 陕西韦尔奇作物保护有限公司 | Pyriproxyfen-containing insecticidal composition |
| CN105831137A (en) * | 2016-03-31 | 2016-08-10 | 广东新景象生物工程有限公司 | Insecticidal composition containing destruxins and diflubenzuron, and preparation method and application thereof |
| CN105831141A (en) * | 2016-04-28 | 2016-08-10 | 深圳诺普信农化股份有限公司 | Pyriproxyfen containing insecticide composition |
-
2017
- 2017-03-31 CN CN201710198300.9A patent/CN106818888B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385251A (en) * | 2012-05-12 | 2013-11-13 | 陕西韦尔奇作物保护有限公司 | Insecticidal composition comprising pyriproxyfen |
| CN105746523A (en) * | 2012-05-16 | 2016-07-13 | 陕西韦尔奇作物保护有限公司 | Pyriproxyfen-containing insecticidal composition |
| CN104255772A (en) * | 2014-09-02 | 2015-01-07 | 肇庆市真格生物科技有限公司 | Sanitary pest insecticidal composition containing thiamethoxam and pyriproxyfen and application thereof |
| CN105831137A (en) * | 2016-03-31 | 2016-08-10 | 广东新景象生物工程有限公司 | Insecticidal composition containing destruxins and diflubenzuron, and preparation method and application thereof |
| CN105831141A (en) * | 2016-04-28 | 2016-08-10 | 深圳诺普信农化股份有限公司 | Pyriproxyfen containing insecticide composition |
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