CN105831137B - A kind of Pesticidal combination containing destruxins and d ichlorbenzuron and its preparation method and application - Google Patents
A kind of Pesticidal combination containing destruxins and d ichlorbenzuron and its preparation method and application Download PDFInfo
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- CN105831137B CN105831137B CN201610196613.6A CN201610196613A CN105831137B CN 105831137 B CN105831137 B CN 105831137B CN 201610196613 A CN201610196613 A CN 201610196613A CN 105831137 B CN105831137 B CN 105831137B
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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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
-
- 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
Abstract
The present invention relates to a kind of Pesticidal combination with synergistic effect, the Pesticidal combination is using destruxins and d ichlorbenzuron as primary activity ingredient, in following ratio mixing destruxins (gram)：D ichlorbenzuron (gram)=(9 1)：(1‑9).Active constituent adds in auxiliary agent and wettable powder, suspending agent, aqueous emulsion is made in excipient, above-mentioned Pesticidal combination can be applicable in prevention diamondback moth, prodenia litura, apple leaf miner, grub, wireworm, trialeurodes vaporariorum, liriomyza bryoniae, root maggot, Bradysia odoriphaga, it is preferred that the lepidopterous insects such as prevention brassicaceous vegetable diamondback moth, prodenia litura, have many advantages, such as that efficacy stability, quick-acting are good, the lasting period is long and safety and environmental protection.
Description
Technical field
The invention belongs to technical field of pesticide, and in particular to a kind of Pesticidal combination containing destruxins and d ichlorbenzuron and its
Preparation method and application.
Background technology
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 metabolic process for green muscardine fungus (Pedras, et al.,
2002), there is action of contace poison to 20 various pests such as Lepidoptera, Homoptera, Diptera, Isoptera, Orthoptera, coleoptera
(Strasser et al., 2000；Pedras,et al.,2002；Hu Qiongbo etc., 2007), stomach poison function (Brousseau et
Al., 1996) and Antifeedant Effects (Amiri et al., 1999；Thomsen et al., 2000)；Destruxins are given birth to certain worms
Fungi or commodity Mixture Use of Insecticides have synergistic effect, such as with beauveria bassiana, Paecilomyces javanicus, green muscardine fungus is mixed can be notable
Improve to the preventive effect of Bemisia tabaci, prodenia litura, grub etc. (Hu, et al., 2007；Hu Qiongbo etc., 2008)；With Bt, Avermectin
Mixed preventive effect (Brousseua, the et that can also significantly improve to choristoneura fumigerana, diamondback moth and Bemisia tabaci such as element, imidacloprid
al.,1998；Hu, et al., 2009), and with efficiently, shelf life is long, is not easy by environmental influence, control effect
The features such as stablizing.
D ichlorbenzuron category benzoyl area kind Chitin synthesis inhibitor is insect growth regulators, can inhibit insect
Chitin synthesis so as to cause insect cannot normally cast off a skin and it is dead.In the respiratory metabolism and the embryo development procedure that influence ovum
DNA and protein metabolism show as good insecticidal activity to abnormal insect, particularly lepidopterous larvae.It not yet finds at present
There are the compounded pesticides of relevant destruxins and d ichlorbenzuron.
Invention content
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 d ichlorbenzuron Pesticidal combination can reduce environmental pollution, reduce pesticide residue, and pest is delayed to resist
Property, reduce Pesticide use amount.
The invention is realized by the following technical scheme：
A kind of Pesticidal combination of the present invention, containing destruxins and d ichlorbenzuron, the destruxins and the d ichlorbenzuron
It is mixed in following ratio：The grams ratio of the destruxins and the d ichlorbenzuron is (9-1)：(1-9)
Preferably, the grams ratio of the destruxins and the d ichlorbenzuron is 3：7,2：8,1：9.
Preferably, the composition is made of destruxins, d ichlorbenzuron and adjuvant.
For the present invention using destruxins and d ichlorbenzuron as host agent, addition adjuvant can be processed into wettable powder, suspending agent, water and milk
The preparations such as agent.The adjuvant changes due to the dosage form of processing is different.
The destruxins are A containing destruxins, the pure substance or mixture of B, C, D, E, and the d ichlorbenzuron is containing children of going out
The pure substance or mixture of urea.
Preferably, the adjuvant is wetting agent, dispersant, stabilizer and carrier, and each component of the adjuvant accounts for described kill
The percentage of the total weight of worm composition is respectively：Wetting agent accounts for 5-25%, and dispersant accounts for 4-15%, and stabilizer accounts for 0%-5%,
Carrier complements to 100%；The wetting agent is neopelex, the withered powder of benzene, spaonin powder, SOPA 235, washing powder, drawing
It opens one or more in powder, agriculture breast No. 2000 series, span 20, polysorbate60s；The dispersant is NNO, MF, lignin sulfonic acid
One kind in sodium, calcium lignosulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, alkylphenol-polyethenoxy base phosphate
It is or a variety of.The stabilizer is butylated hydroxyarisol, 2,6-di-tert-butyl p-cresol, propylgallate and tertiary butyl
It is one or more in hydroquinone；The carrier is kaolin, white carbon, attapulgite, diatomite and bentonite, lightweight carbon
It is one or more in sour calcium.
Above-mentioned adjuvant is processed into wettable powder, by destruxins, d ichlorbenzuron, wetting agent, dispersant, carrier, stabilizer
Mixing is uniformly mixed in premixing tank, and superfine powder is made after airslide disintegrating mill crushes.
Preferably, the adjuvant be thickener, emulsifier, co-emulsifier, stabilizer, antifreeze and solvent, the adjuvant
The each component percentage of total weight that accounts for the Pesticidal combination be respectively：Emulsifier accounts for 5-20%, and co-emulsifier accounts for 5-
10%, thickener accounts for 0.5%-5%, and stabilizer accounts for 0.5%-5%, and antifreezing agent accounts for 0.5%-5%, solvent 10%-90%, go from
Sub- water is supplied.The emulsifier is ethylene oxide-propylene oxide block copolymer, alkyl polyglycol ether, the poly- second of alkyl phenyl
It is one or more in glycol ethers, polyoxyethylene sorbitol acid anhydride ester, sulfonate, sulfate, lignosulfonates, phosphate；
The co-emulsifier is one or more of butanol, isobutanol, dodecanol, tetradecanol；The thickener for xanthans,
It is one or more in sodium alginate, Arabic gum, bentonite, white carbon；The stabilizer for butylated hydroxyarisol,
It is one or more in 2,6-di-tert-butyl p-cresol, propylgallate and tert-butylhydroquinone；The antifreezing agent is second
It is one or more in glycol, urea, glycerine, propylene glycol.The solvent is alcohols, esters, one kind in arene or more
Kind.
Above-mentioned adjuvant is processed into aqueous emulsion, and d ichlorbenzuron, destruxins are dissolved in solvent in proportion, by emulsifier, altogether breast
Agent, stabilizer, antifreeze, thickener are added in the ratio of formula in d ichlorbenzuron, destruxins mixed solution, are sufficiently stirred
Deionized water is slowly added to after even, is stirred.
Preferably, the dosage form of the composition is suspending agent, and the grams ratio of the destruxins and the d ichlorbenzuron is 2：
8。
Preferably, the adjuvant is wetting agent, dispersant, thickener, antifoaming agent, thixotropic agent, preservative, stabilizer, prevents
Freeze agent；The percentage that each component of the adjuvant accounts for the total weight of the Pesticidal combination is respectively：Wetting agent accounts for 1-15%, point
Powder accounts for 1-15%, and thickener accounts for 0.1-3%, and antifoaming agent accounts for 0.5-5%, and thixotropic agent accounts for 0.5%-5%, and preservative accounts for 0.1%-
1%, stabilizer accounts for 0.1%-2%, antifreezing agent 0.1%-5%, and deionized water complements to 100%；The wetting agent for K12,
NPE, it oozes T, alkyl phenol (or fatty alcohol) polyoxyethylene poly-oxygen propylene aether and its sulfate (or phosphate ester), is polyether-modified poly- organic
In siloxanes, lauryl sodium sulfate, fatty acid sulfates, fatty alcohol polyoxyethylene ether, alkyl phenolic group polyoxyethylene ether
It is one or more；The dispersant is lignin salt, NNO, MF, BX, polycarboxylate, alkylphenol-polyethenoxy formaldehyde condensation products sulphur
It is one or more in hydrochlorate, phosphate, morwet EFW, D-425；The thickener is xanthans, CMC, PVA, alginic acid
It is one or more in sodium, Arabic gum, bentonite, white carbon, starch；The antifoaming agent is bubble enemy, organosilicon breast, C4-8 fat
It is one or more in fat alcohol, tributyl phosphate, machinery oil, silicone；The thixotropic agent is aluminium-magnesium silicate；The stabilizer is
One kind in butylated hydroxyarisol, 2,6-di-tert-butyl p-cresol, propylgallate and tert-butylhydroquinone or
It is a variety of；The antifreezing agent is ethylene glycol, one or more in urea, glycerine, propylene glycol.
Above-mentioned adjuvant is processed into suspending agent, weigh destruxins, d ichlorbenzuron, wetting agent, dispersant, antifoaming agent, thixotropic agent,
Preservative, stabilizer, antifreezing agent are proportionally mixed to be sanded through high shear dispersion, vertical grinding machine, after grain size reaches standard,
Thickener is proportionally added into, is stirred evenly.
Preferably, the grams ratio of the grams of the destruxins and the d ichlorbenzuron is 1：9.
Above-mentioned Pesticidal combination can be applicable to prevention diamondback moth, prodenia litura, apple leaf miner, grub, wireworm, white powder
In lice, liriomyza bryoniae, root maggot, Bradysia odoriphaga, the Lepidopteras elder brothers such as brassicaceous vegetable diamondback moth, prodenia litura are preferably prevented
Worm.Application method is spraying.Formulation rate is according to the conditions difference such as worm kind, insect density, worm age and soil, crop through simple experiment
It determines.
There is apparent synergistic effect, compared with single dose pesticide, insecticidal toxicity significantly carries in the Pesticidal combination of the present invention
Height, quick-acting are good；The usage amount of pesticide is reduced, and environmental pollution is reduced；The present invention reduces the usage amount of destruxins, reduces production
Cost；Two kinds of entirely different farm chemical ingredients of mechanism of action are compounded, target site is increased, insect is made to be not likely to produce anti-medicine
Property；Composition after compounding has preferable control effect to the ovum of pest, larva, pupa, adult.
Specific embodiment
The present invention is further detailed, but the present invention is not limited thereto with reference to specific embodiment.Implement
Percentage in example refers both to weight percent, and the destruxins refer both to effective quantity, and the amount of the d ichlorbenzuron 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.
The embodiment of the present invention is the method being combined using indoor virulence test and field trial.
Embodiment 1：(the grams ratio of the destruxins and the d ichlorbenzuron is destruxins d ichlorbenzuron wettable powder
1：9)
Weigh 20 grams of destruxins, 180 grams of d ichlorbenzuron, 50 grams of wetting agent neopelex, spaonin powder 5 gram, point
10 grams of powder NNO, 30 grams of alkylphenol-polyethenoxy base phosphate, 6 grams of tert-butylhydroquinone, surplus are diatomite as load
Body.
By the d ichlorbenzuron, the destruxins, the wetting agent, the dispersant, the stabilizer and the carrier
It is uniformly mixed in premixing tank, superfine powder is made after airslide disintegrating mill crushes, obtains wettable powder Pesticidal combination.
In another embodiment, Pesticidal combination is formulated as weighing 20 grams of destruxins, 180 grams of d ichlorbenzuron, wetting
25 grams of the withered powder of agent benzene, 25 grams of spaonin powder, 40 grams of Dispersant MF, surplus are that kaolin, white carbon supply total weight as carrier and be
1000 grams.
In another embodiment, Pesticidal combination is formulated as weighing 20 grams of destruxins, 180 grams of d ichlorbenzuron, wetting
Agent SOPA235 weight is 50 grams, 100 grams 50 grams of washing powder, 50 grams of pull open powder, agriculture breast 2000 of series, dispersant polyoxyethylene
150 grams of polyoxypropylene base ether block copolymers, 50 grams of stabilizer 2,6-di-tert-butyl p-cresol, surplus are attapulgite and swelling
It is 1000 grams that soil supplies total weight as carrier.
In another embodiment, Pesticidal combination is formulated as weighing 20 grams of destruxins, 180 grams of d ichlorbenzuron, wetting
Each 100 grams of agent span 20, polysorbate60, each 50 grams of dispersant sodium lignin sulfonate, calcium lignosulfonate, stabilizer tertiary butyl is to hydroxyl
Each 10 grams of base anisole, propylgallate, surplus are that supply total weight as carrier be 1000 grams to precipitated calcium carbonate.
Embodiment 2：(the grams ratio of the destruxins and the d ichlorbenzuron is 2 to destruxins Chlorbenzuron deflocculant：
8)。
20 grams of destruxins, 80 grams of d ichlorbenzuron, 20 grams of wetting agent lauryl sodium sulfate, aliphatic alcohol polyethenoxy is weighed to gather
10 grams of oxypropylene ether, 10 grams, morwet10 grams of Dispersant MF, 50 grams of thickener xanthans, 20 grams of antifoaming agent silicone, thixotropic agent
15 grams of aluminium-magnesium silicate, 5 grams of stabilizer butylated hydroxyarisol, 5 grams of tert-butylhydroquinone, 5 grams of preservative sodium benzoate,
5 grams of antifreeze glycol, surplus is deionized water.
By the d ichlorbenzuron, the wetting agent, the dispersant, the stabilizer, the antifoaming agent, the thixotropic agent and
Deionized water is sequentially added in mixing kettle, is stirred evenly, and is sanded, is sanded into sand mill after the shearing of high shear dispersion kettle
Xanthans is added in after being less than 5 microns to 90% grain size to stir evenly, and obtains suspending agent disinfestation composition.
In another embodiment, Pesticidal combination is formulated as weighing 20 grams of destruxins, 80 grams of d ichlorbenzuron, wetting agent
1 gram of K12 weight, 1 gram of NPE weight ooze totally 7 grams of 1 gram of T weight, alkylphenol-polyethenoxy polyethenoxy ether and its sulfate, dispersion
10 grams of agent lignin salt, CMC0.3 grams of thickener, PVA0.3 grams, 0.4 gram of sodium alginate, 2 grams of antifoaming agent bubble enemy, organosilicon breast 3
Gram, 5 grams of thixotropic agent aluminium-magnesium silicate, 1 gram of preservative sodium benzoate, 1 gram of stabilizer 2,6-di-tert-butyl p-cresol, antifreezing agent urea
1 gram, surplus complements to 1000 grams for deionized water.
In another embodiment, Pesticidal combination is formulated as weighing 20 grams of destruxins, 80 grams of d ichlorbenzuron, wetting agent fat
150 grams of fat alcohol polyoxyethylene poly-oxygen propylene aether and its phosphate ester, NNO30 grams of dispersant, BX30 grams, 30 grams of polycarboxylate, alkyl
60 grams of phenol polyethenoxy formaldehyde condensation products sulfate, 10 grams of thickener Arabic gum, 10 grams of bentonite, 10 grams of white carbon, defoaming
50 grams of agent C4-8 fatty alcohols, 50 grams of thixotropic agent aluminium-magnesium silicate, 20 grams of stabilizer propylgallate, preservative sodium benzoate 10
Gram, 50 grams of antifreezing agent glycerine, surplus complements to 1000 grams for deionized water.
In another embodiment, Pesticidal combination, which is formulated as weighing 20 grams of destruxins, 80 grams of d ichlorbenzuron, wetting agent, gathers
Ether modified polyorganosiloxanes, fatty acid sulfates, fatty alcohol polyoxyethylene ether, alkyl phenolic group polyoxyethylene ether it is 25 grams each,
40 grams of dispersant phosphate, each 30 grams of EFW, D-425,20 grams of thickener starch, antifoaming agent tributyl phosphate, machinery oil each 15
Gram, 20 grams of thixotropic agent aluminium-magnesium silicate, stabilizer 2,6-di-tert-butyl p-cresol, propylgallate are 5 grams each, preservative benzoic acid
5 grams of sodium, 20 grams of antifreezing agent propylene glycol, surplus complement to 1000 grams for deionized water.
Embodiment 3：(the destruxins grams and the grams ratio of the d ichlorbenzuron are destruxins d ichlorbenzuron aqueous emulsion
3：7)
Weigh 45 grams of destruxins, 105 grams of d ichlorbenzuron, 20 grams of emulsifier alkyl polyglycol ether, lignosulfonates 30
Gram 50 grams of co-emulsifier isobutanol, 10 grams of thickener xanthans, 10 grams of stabilizer butylated hydroxyarisol, antifreezing agent second two
5 grams of alcohol, solvent account for 100 grams for methanol, and 200 grams of dimethylbenzene, surplus is deionized water.
It by the destruxins, the d ichlorbenzuron, methanol, xylene solvent, sequentially adds in mixing kettle, stirs evenly,
Until completely dissolved add in alkyl polyglycol ether, lignosulfonates, isobutanol, xanthans, butylated hydroxyarisol,
Ethylene glycol, deionized water, high shear 1 hour, obtain aqueous emulsion Pesticidal combination.
In another embodiment, Pesticidal combination is formulated as 45 grams of destruxins, 105 grams of d ichlorbenzuron, emulsifier epoxy
Each 25 grams of oxide-propylene oxide block copolymer, alkyl phenyl polyglycol ether, 50 grams of co-emulsifier butanol, thickener seaweed
Sour 5 grams of sodium, 5 grams of stabilizer 2,6-di-tert-butyl p-cresol, 5 grams of antifreezing agent urea, solvent be methanol account for 100 grams of surpluses for go from
Sub- water complements to 1000 grams.
In another embodiment, Pesticidal combination is formulated as 45 grams of destruxins, 105 grams of d ichlorbenzuron, emulsifier polyoxy
Totally 30 grams of ethylene sorbitan ester, sulfonate, sulfate, each 25 grams of co-emulsifier dodecanol, isobutanol, thickener I
Each 5 grams of primary glue, bentonite, 10 grams of stabilizer propylgallate, 5 grams of antifreezing agent glycerine, solvent account for 100 grams for methanol, diformazan
200 grams of benzene, surplus complement to 1000 grams for deionized water.
In another embodiment, Pesticidal combination is formulated as 45 grams of destruxins, 105 grams of d ichlorbenzuron, emulsifier phosphoric acid
100 grams of ester, 80 grams of co-emulsifier tetradecanol, 20 grams of thickener white carbon, 20 grams of stabilizer tert-butylhydroquinone, antifreezing agent
20 grams of propylene glycol, solvent account for 100 grams for methanol, and 200 grams of dimethylbenzene, surplus complements to 1000 grams for deionized water.
Embodiment 4：The present embodiment is the method being combined using indoor virulence test and field trial
Test reagent：Destruxins original powder 90%, benzoylphenyl urea original medicine 97%.
Subjects：3 instar larvae Plutellaxylostella (Linnaeus) of diamondback moth
Test method：It is tested using leaf dipping method.The preparation method of medicament refers to pesticide toxicity evaluation method, respectively to green
Stiff rhzomorph (A), d ichlorbenzuron (B), with preliminary survey LC50Concentration respectively extends 2 gradient concentrations to both ends centered on value, sets 5 processing altogether
Concentration, using clear water processing as control.The cabbage leaves for being not in contact with any medicament are soaked into the liquid 10s taking-ups and dry rear defence
Enter in culture dish, per culture dish, access healthy growth, 3 instar larvae of diamondback moth of the same size 20, are repeated 4 times per concentration, put
In insulating box (25 DEG C ± 1 DEG C of temperature), inspection result after 48h calculates the death rate and corrected mortality, with SPSS data processings
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 values) of mixture is calculated by following equation：
In formula：
ATI- mixtures survey toxicity index；
The LC of S- standard pesticide agent50, unit is milligrams per liter；
The LC of M- mixtures50, unit is milligrams per liter.
TTI=TIA × PA+TIB × PB
In formula：
TTI-mixture theoretical toxicity index；
TIA-A medicament toxicity index；
Percentage composition of PA-A medicaments in mixture, unit are percentage；
TIB-B medicament toxicity index；
Percentage composition of PB-B medicaments in mixture, unit are percentage.
In formula：
CTC-co-toxicity coefficient；
AT-mixture actual measurement toxicity index；
TTI-mixture theoretical toxicity index.
The co-toxicity coefficient (CTC) of compounding agent：
CTC >=120 show as synergistic effect；
CTC≤80 show as antagonism；
80 ＜ CTC ＜ 120 show as summation action.
Table 1 is different for trying for the destruxins (A) containing different proportion of the present invention and the Pesticidal combination of d ichlorbenzuron (B)
Activity (the LC of medicament50), the testing result of co-toxicity coefficient (CTC).Destruxins and d ichlorbenzuron it can be seen from 1 result of table
Mass ratio is (1-9)：(9-1) shows apparent synergistic effect, wherein with destruxins：D ichlorbenzuron (mass ratio)=2：8
Synergistic effect is most apparent.
Table 1
A:Destruxins B:D ichlorbenzuron
Embodiment 5：Field information is tested：
This experiment is arranged in Fushan City, Guangdong Province Xi Qiao towns, and test medicine is ground by the new scene bioengineering Co., Ltd in Guangdong
Hair provides, 0.5% destruxins suspending agent of comparison medicament (Agricultural University Of South China's offer), 20% Chlorbenzuron deflocculant (purchased in market).
In diamondback moth larvae occurance peak (based on 2~3 ages), wild cabbage growth carries out spray prevention in lotus throne initial stage.
Spray instrument be (Super-Green) -16 type knapsack sprayer, spray value 45L/667m2, spray in cabbage plant leaf table
In face and lobus cardiacus.
The method that efficacy survey method is investigated using fixed point singling.It is marked before dispenser per cell by 5 point samplings and with bamboo stick
Wild cabbage is carefully investigated and records the population number on every dish as insect population before medicine, 1 after dispenser, investigates mark within 3,7,14 days
Survival borer population in fixed point calculates Revision insect recluced rate and control effect by following equation, and with the new multipole difference methods of inspection of Deng Kenshi
(DMRT methods) is for statistical analysis, the level of difference of control effect between more each processing.2 are the results are shown in Table, from the table
The present composition reaches more than 80% for trying out preventive effect after dose spraying 1d, and 14d prevents after showing preferable quick-acting, medicine
Effect can reach more than 75%, at least 14 days lasting period.The present composition reduces medication while preventive effect is improved
Amount.
Table 2
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of range is protected, although being explained in detail with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (3)
1. a kind of Pesticidal combination containing destruxins and d ichlorbenzuron, which is characterized in that the Pesticidal combination contains green muscardine fungus
Element and d ichlorbenzuron, the destruxins and the d ichlorbenzuron are mixed in following ratio：The grams of the destruxins is gone out with described
The grams ratio of young urea is (1-9)：(9-1).
2. Pesticidal combination according to claim 1, which is characterized in that the composition by destruxins, d ichlorbenzuron and
Adjuvant forms, and the destruxins are A containing destruxins, the pure substance or mixture of B, C, D, E, and the d ichlorbenzuron is containing children of going out
The pure substance or mixture of urea.
3. the Pesticidal combination described in one of claim 1-2 is in prevention scale insect, diamondback moth, trialeurodes vaporariorum, prodenia litura, Ji
Application in terms of horse, apple leaf miner, grub, wireworm, citrus fruit fly, liriomyza bryoniae, root maggot, fragrant-flowered garlic maggot.
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