CN112568224A - Insecticidal composition containing bromofenoxaprop-p-fluorobenzene bisamide and diafenthiuron - Google Patents

Insecticidal composition containing bromofenoxaprop-p-fluorobenzene bisamide and diafenthiuron Download PDF

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CN112568224A
CN112568224A CN201910924795.8A CN201910924795A CN112568224A CN 112568224 A CN112568224 A CN 112568224A CN 201910924795 A CN201910924795 A CN 201910924795A CN 112568224 A CN112568224 A CN 112568224A
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diafenthiuron
composition
powder
granule
bromofenoxanil
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CN112568224B (en
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葛家成
孙翠
张永芳
董德臻
谢维星
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Qingdao Audis Biological And Technology Co ltd
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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
    • 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
    • A01N37/44—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 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
    • A01N37/46—N-acyl derivatives
    • 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<
    • A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
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  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention belongs to the field of pesticides, and relates to a composition containing bromofenoxanil and diafenthiuron and application thereof. The weight part ratio of the two active components is 1: 80-80: 1. The composition has the advantages of synergism, resistance reduction and the like, and can be used for controlling various pests with different purposes.

Description

Insecticidal composition containing bromofenoxaprop-p-fluorobenzene bisamide and diafenthiuron
Technical Field
The invention belongs to the technical field of pesticides, and relates to application of a composition containing bromofenoxanil and diafenthiuron to crop pests.
Background
The brobendiamide was developed by basf together with Mitsui Chemistry (MCAG), and the mechanism of action was novel. The demethylation-bromofenoxaprop-p-fluorobenzenediamide generated by metabolism of the bromofenoxaprop-p-fluorobenzenediamide has non-competitive resistance to GABA receptor antagonists, is a novel insecticide component classified into the 30 th family by the international insecticide resistance action committee, has no cross resistance with the existing insecticide, has excellent efficacy in controlling various chewing mouthpart pests, can control lepidoptera, coleoptera, thrips and other pests aiming at commercial crops and field crops, and can be used for controlling pests such as termites, ants, cockroaches, flies and the like in public health. The component of the brofenthiuron bisamide can be developed to be used for preventing and controlling the golden insects in grain seed coating agents.
Diafenthiuron is a novel thiourea insecticide and acaricide with high efficiency, which destroys the basic functions of the nervous system and inhibits the synthesis of chitin of pests by interfering the energy metabolism of the nervous system. Has contact poisoning, stomach poisoning, systemic absorption and fumigation effects, and has ovum killing effect. Converting into substance with insecticidal activity under ultraviolet light, and has strong activity on pests with severe drug resistance on vegetables. Can be used for preventing and treating aphid, whitefly, leafhopper, noctuidae pests and mites on various crops and ornamental plants.
Because crops often have various insect pests, and most medicaments can only control one or a certain type of pests, the effect of simultaneously controlling different pests can be achieved by the mixed use of two or more medicaments with different action mechanisms; can also improve the control effect and quick-acting property of the medicament, achieve the purposes of increasing the medicament effect and reducing the medicament resistance; can also improve the efficiency and reduce the medication cost.
In the prior art, the technical scheme of the composition containing the bromofenoxanil and the diafenthiuron is not disclosed in detail.
Disclosure of Invention
The invention aims to provide a composition containing bromofenoxanil fluorobenzene bisamide and diafenthiuron, which has a synergistic effect, low use cost and good control effect.
In order to achieve the purpose, the invention adopts the technical scheme that:
a composition containing bromofenoxanil and diafenthiuron comprises an active component A and an active component B, wherein the active component A is the bromofenoxanil and the active component B is the diafenthiuron; wherein the weight part ratio of the two active components is 1: 80-80: 1;
the preferable technical scheme is as follows: in the insecticidal composition, the weight part ratio of the active component A to the active component B is 1: 5-3: 1;
further preferred are: the weight part ratio of the active component A to the active component B is 1: 3-1: 1;
further preferred are: the weight part ratio of the active component A to the active component B is 1: 1.
The compositions of the present invention may be formulated into pesticidally acceptable dosage forms, including solid, liquid, seed treatment, other formulations, according to methods well known to those skilled in the art;
further, the solid preparation is powder, dispersible tablets, granules, soluble powder, soluble granules, soluble tablets, milk powder, milk granules, water dispersible granules, wettable powder, micro-capsule granules, powder, macro-granules and water dispersible tablets;
further, the liquid preparation is microcapsule suspending agent, dispersible agent, missible oil, emulsion granules, oil emulsion, emulsion powder, aqueous emulsion, microemulsion, dispersible oil suspending agent, oil dispersion powder, suspending agent, suspoemulsion, soluble agent and ultra-low volume liquid;
further, the seed treatment preparation is a suspended seed coating agent, a seed treatment dry powder agent, a seed treatment dispersible powder agent, a seed treatment suspending agent and a seed treatment liquid agent;
further, the other preparation is bait, concentrated bait, gas preparation, aerosol, smoke agent;
furthermore, the preparation formulation is preferably a suspending agent, a water dispersible granule, an emulsion in water, a granule and a wettable powder.
The weight percentage of the active components in the composition is between 0.5 and 95 percent;
further, the weight percentage of the active components in the composition is between 1% and 85%;
furthermore, the composition of the invention comprises an active ingredient and a pesticide auxiliary ingredient, wherein the pesticide auxiliary ingredient comprises a carrier and an auxiliary agent;
further, the carrier is one, two or three of water, solvent or filler, and the water is preferably deionized water;
further, the solvent is selected from the group consisting of N, N-dimethylformamide, cyclohexanone, toluene, xylene, dimethyl sulfoxide, methanol, ethanol, trimethylcyclohexanone, N-octylpyrrolidone, ethanolamine, triethanolamine, and isopropylamine. One or more of N-methyl pyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, ethylene glycol methyl ether, butyl ether, ethanolamine, isopropylamine, ethyl acetate or acetonitrile;
further, the filler is selected from one or a mixture of more of kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or light calcium carbonate;
the auxiliary agent at least comprises a surfactant, and other functional auxiliary agents such as an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent, a defoaming agent, a slow release agent, a binder and the like can be added according to different use occasions and requirements;
the surfactant is selected from one or four of an emulsifier, a dispersant, a wetting agent or a penetrating agent. The surfactant is a single agent or a compound preparation of a common nonionic surfactant or an anionic surfactant;
the other functional auxiliary agents are selected from one or more of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or a defoaming agent;
further, the emulsifier is selected from one or more of agricultural milk 500# (calcium alkyl benzene sulfonate), OP series phosphate (surfactant phosphate), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether wetting agent salt, magnesium salt of alkyl diphenyl ether disulfonate, triethanolamine salt, agricultural milk 400# (benzyl dimethyl phenol polyoxyethylene ether), agricultural milk 700# (alkylphenol formaldehyde resin polyoxyethylene ether), Ning milk 36# (phenethylphenol formaldehyde resin polyoxyethylene ether), agricultural milk 1600# (phenethylphenol polyoxyethylene polypropylene ether), ethylene oxide-propylene oxide block copolymer, OP series (surfactant), BY series (castor oil polyoxyethylene ether), agricultural milk 33# (alkylaryl polyoxyethylene propylene ether), span series (sorbitan monostearate), Tween series (sorbitan fatty acid ester polyoxyethylene ether) or AEO series (fatty alcohol polyoxyethylene ether) An agent;
further, the dispersing agent is selected from one or a mixture of a plurality of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene formaldehyde condensate sulfate, calcium alkylbenzene sulfonate, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene, fatty amine polyoxyethylene, fatty acid polyoxyethylene or glycerol fatty acid ester polyoxyethylene;
further, the wetting agent is selected from one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrant F, Chinese honeylocust fruit powder, silkworm excrement or soapberry powder;
further, the penetrating agent is selected from a mixture consisting of one or more of penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrating agent T (diisooctyl maleate sulfonate), azone or organic silicon;
further, the antifreezing agent is a mixture consisting of one or more of ethylene glycol, propylene glycol, glycerol or urea;
further, the thickening agent is selected from one or more of xanthan gum, a disintegrating agent, bentonite, carboxymethyl cellulose or magnesium aluminum silicate;
further, the stabilizer is selected from one or more of epoxidized soybean oil, epichlorohydrin, BHT, ethyl acetate and triphenyl phosphate;
further, the disintegrating agent is selected from one or more of bentonite, urea, wetting agent, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate;
further, the defoaming agent is selected from one or more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds or C8-C10 fatty alcohol compounds;
further, the composition is prepared into a suspending agent, and the components and the content of the suspending agent are preferably as follows: 0.1-80% of bromofenoxanil, 0.1-80% of diafenthiuron, 2-10% of dispersant, 2-10% of wetting agent, 0.01-2% of defoaming agent, 0-2% of thickening agent, 0-8% of antifreeze agent and the balance of deionized water;
further, the composition is prepared into water dispersible granules, and the components and the content of the water dispersible granules are preferably as follows: 0.1 to 80 percent of bromofenoxanil, 0.1 to 80 percent of diafenthiuron, 3 to 12 percent of dispersant, 1 to 8 percent of wetting agent, 1 to 10 percent of disintegrant and the balance of filler;
further, the composition is prepared into an aqueous emulsion, and the components and the content of the composition are preferably as follows: 0.1 to 80 percent of bromofenoxanil, 0.1 to 80 percent of diafenthiuron, 5 to 15 percent of emulsifier, 2 to 10 percent of solvent, 5 to 10 percent of antifreeze agent, 0.5 to 3 percent of stabilizer and the balance of deionized water.
Further, the composition is prepared into wettable powder, and the components and the content of the wettable powder are preferably as follows: 0.1-80% of bromofenoxanil, 0.1-80% of diafenthiuron, 5-20% of wetting agent, 10-20% of dispersing agent and the balance of solid carrier;
further, the composition is prepared into granules, and the components and the content of the granules are preferably as follows: 0.1 to 80 percent of bromofenoxanil, 0.1 to 80 percent of diafenthiuron, 2 to 10 percent of dispersant, 2 to 10 percent of wetting agent and the balance of filler;
the insecticidal composition of the invention has the following advantages: the composition shows synergistic effect in a certain proportion range, and improves the control effect of the composition on pests; the control targets of all effective components in the composition are different, so that the insecticidal range can be enlarged, and the production cost can be effectively reduced; the two active components in the composition have different action mechanisms, so that the generation of drug resistance of pests is effectively delayed, and the service life of the product is prolonged; the two active components in the composition are combined in a proper proportion range, so that the pest control effect is improved.
Detailed Description
The invention will be further illustrated by reference to the following examples, which are not intended to limit the invention thereto, but are in each case based on the weight.
The compositions of the present invention may be provided in the form of a finished formulation. Can be prepared into suspending agents, water dispersible granules, emulsion in water, granules, wettable powder and the like according to requirements. The cumulative content of the active components in the composition in percentage by weight is between 0.5 and 95 percent, and the preferred cumulative content is between 1 and 85 percent. The amount of active ingredient present in the compositions of the invention depends on the application rate used alone, on the compounding ratio and on the degree of synergism. The optimum range of active ingredient content will vary depending upon the type of formulation of the composition.
Formulation preparation example:
example 1: 20% Chlorantraniliprole, diafenthiuron suspension (1:1)
The formula is as follows: 10% of bromofenoxanil, 10% of diafenthiuron, 2% of sodium alkyl sulfate, 3% of alkylphenol formaldehyde resin polyoxyethylene ether, 0.4% of carboxymethyl cellulose, 5% of propylene glycol, 0.2% of isothiazolinone and deionized water, and the balance is made up;
the preparation method comprises the following steps: according to the formula proportion, the effective components of the bromofenoxanil, the diafenthiuron, the surfactant and other functional additives are sequentially placed in a reaction kettle, water is added for uniform mixing, and the suspending agent product is obtained through high-speed shearing, wet sanding and finally homogeneous filtration.
Example 2 25% Bromocha-fluorobenzene bisamide-diafenthiuron suspension (4:1)
The formula is as follows: 20% of bromofenoxanil, 5% of diafenthiuron, 10% of dodecyl polyoxyethylene ether phosphate, 2% of sodium alkyl polyoxyethylene ether sulfonate, 0.4% of magnesium aluminum silicate, 0.2% of carboxyethyl cellulose, 4% of sorbitol, 0.1% of sodium benzoate, 0.5% of silicone oil and deionized water for balancing;
the preparation method comprises the following steps: the same as in example 1.
Example 3: 15% Chlorantraniliprole, diafenthiuron suspension (1:2)
The formula is as follows: 5% of bromofenoxanil, 10% of diafenthiuron, 8% of dodecyl polyoxyethylene ether phosphate, 2% of sodium alkyl polyoxyethylene ether sulfonate, 0.4% of xanthan gum, 0.1% of carboxyethyl cellulose, 4% of sorbitol, 0.1% of sodium benzoate, 0.5% of silicone oil and deionized water for balancing;
the preparation method comprises the following steps: the same as in example 1.
Example 4: 15% brobendiamide-diafenthiuron water dispersible granule (1:2)
The formula is as follows: 5 percent of bromofenoxanil, 10 percent of diafenthiuron, 4 percent of lignosulfonate, 3 percent of sodium dodecyl benzene sulfonate, 5 percent of aluminum chloride and white carbon black, and the balance is made up.
The preparation method comprises the following steps: adding active ingredients of bromofenoxanil and diafenthiuron into a carrier according to the formula proportion of an embodiment, adding a surfactant and other functional auxiliaries, mixing, performing jet milling, adding 10-25% of water, kneading, granulating, drying and screening to obtain a water dispersible granule product; or spraying water to the pulverized powder in a boiling granulator, granulating, drying, and sieving to obtain the final product.
Example 5: 40% bromobenzoate fluorobenzene bisamide diafenthiuron water dispersible granule (1:1)
The formula is as follows: 20% of bromofenoxanil, 20% of diafenthiuron, 5% of lignosulfonate, 3% of nekal BX, 5% of aluminum chloride and kaolin, and the balance is made up.
The preparation method comprises the following steps: the same as in example 4.
Example 6: 20% brobendiamide-diafenthiuron water dispersible granule (3:1)
The formula is as follows: 15% of bromofenoxanil, 5% of diafenthiuron, 5% of sodium salt of a naphthalene sulfonic acid formaldehyde condensate, 4% of nekal BX, 8% of aluminum chloride and kaolin, and the balance is made up.
The preparation method comprises the following steps: the same as in example 4.
Example 7: 30% aqueous emulsion of bromobenzofenoxanil-diafenthiuron (2:3)
The formula is as follows: 10% of bromofenoxanil, 15% of diafenthiuron, 12% of phosphate, 8% of propylene glycol and deionized water to make up the balance;
the preparation method comprises the following steps: adding the active ingredients of the chlorfenapyr fluorobenzene bisamide, the diafenthiuron, the solvent, the emulsifier and the cosolvent together according to the formula proportion of the embodiment, and dissolving the active ingredients into a uniform oil phase; mixing part of water, antifreeze agent, antimicrobial agent and other pesticide auxiliary agents together to form a uniform water phase; adding the oil phase into the water phase while stirring at a high speed in the reaction kettle, slowly adding water until a phase inversion point is reached, starting a shearing machine to shear at a high speed, adding the rest water, and shearing for about half an hour to form the aqueous emulsion.
Example 8: 20% aqueous emulsion of bromobenzofenoxanil-diafenthiuron (1:3)
The formula is as follows: 5% of bromofenoxanil fluorobenzene bisamide, 15% of diafenthiuron, 3% of farm milk 1601#, 7% of ethylene glycol and deionized water to make up the balance;
the preparation method comprises the following steps: the same as in example 7.
Example 9: 15% aqueous emulsion of bromobenzofenoxanil-diafenthiuron (2:1)
The formula is as follows: 10% of bromofenoxanil, 5% of diafenthiuron, 6% of phosphate, 7% of ethylene glycol and deionized water to make up the balance;
the preparation method comprises the following steps: the same as in example 7.
Example 10: 0.9% Chlorantraniliprole, diafenthiuron granules (5:4)
The formula is as follows: 0.5 percent of bromobenzoate fluorobenzene bisamide, 0.4 percent of diafenthiuron, 4 percent of nekal BX, 3 percent of wetting penetrant F, 13 percent of lignosulfonate and light calcium carbonate, and the balance is made up;
the preparation method comprises the following steps: weighing and mixing the active ingredient of the brobendiamide, the diafenthiuron, the binder and the carrier according to a required proportion, crushing, mixing with the carrier, adding the binder, stirring, granulating, inspecting, and packaging to obtain the product.
Example 11 1% Bromocha-fluorobenzene bisamide-diafenthiuron granules (1:1)
The formula is as follows: 0.5 percent of bromobenzoate fluorobenzene bisamide, 0.5 percent of diafenthiuron, 10 percent of nekal BX, 12 percent of wetting penetrant F, 2 percent of polycarboxylate and bentonite, and the balance being made up;
the preparation method comprises the following steps: the same as in example 10.
Example 12 Bromocha-fluorobenzene bisamide-diafenthiuron granules 3% (1:1)
The formula is as follows: 1.5 percent of bromofenoxanil, 1.5 percent of diafenthiuron, 13 percent of sodium dodecyl benzene sulfonate, 1 percent of Chinese honeylocust fruit powder, 13 percent of lignosulfonate and bentonite, and the balance is made up;
the preparation method comprises the following steps: the same as in example 10.
Example 13: 30% wettable powder of bromofenoxanil-flubenuron (1:5)
The formula is as follows: 6 percent of bromofenoxanil, 30 percent of diafenthiuron, 7 percent of polycarboxylate, 4 percent of sodium dodecyl benzene sulfonate and kaolin are added for the rest;
the preparation method comprises the following steps: according to the formula proportion of the embodiment, the effective components of the brobendiamide and the diafenthiuron are added into the carrier, the surfactant and other functional additives are added into the carrier, and the mixture is mixed, pulverized by air flow and then mixed to prepare the wettable powder.
Example 14: 22% wettable powder of bromofenoxanil-flubenuron (10:1)
The formula is as follows: 20% of bromofenoxanil, 2% of diafenthiuron, 1% of fatty amine polyoxyethylene ether, 3% of sodium dodecyl benzene sulfonate and kaolin, and the balance is made up;
the preparation method comprises the following steps: the same as in example 13.
Example 15: 30% wettable powder of bromofenoxanil-flubenuron (1:2)
The formula is as follows: 10% of bromofenoxanil, 20% of diafenthiuron, 5% of alkylphenol polyoxyethylene, 3% of wetting penetrant F and diatomite;
the preparation method comprises the following steps: the same as in example 13.
Indoor biological activity assay
Example 16: combined toxicity of mixing of bromofenoxanil and diafenthiuron on cabbage diamondback moth
The embodiment of the invention adopts a method combining indoor toxicity measurement and field test. Firstly, determining the co-toxicity coefficient (CTC) of two medicaments compounded according to a certain proportion by indoor toxicity measurement, wherein the CTC is less than 80 and is antagonistic action, the CTC is more than 120 and is synergistic action, and the CTC is added between 80 and 120, and then carrying out field market test on the basis.
The test method comprises the following steps: soaking leaves in the medicinal liquid for 5s by soaking method, taking out, air drying, placing in insect box, inoculating tested larva, feeding at 25 deg.C, repeating for 4 times, using 20 test insects for each repetition, setting blank control, checking number of dead insects in 48 hr, calculating mortality and correcting mortality, solving toxicity regression equation, and calculating LC50Values were considered as invalid tests if the control mortality was > 10%. The calculation formula is as follows:
Figure RE-GDA0002268749820000081
Figure RE-GDA0002268749820000082
by LC50The relatively small-value agent is a standard agent, and the virulence index TI thereof is 100.
Figure RE-GDA0002268749820000083
Figure RE-GDA0002268749820000084
Theoretical toxicity index TI of mixed preparationA×PA+TIB×PB
Figure RE-GDA0002268749820000085
In the formula: pA、PBDecibels are the proportion of the active ingredient A, B in the composition.
Wherein A is bromofenoxanil and B is diafenthiuron.
The tested pests: diamondback moth (Plutella xylostella), 3-instar larvae were raised indoors.
Test agents: 95% of flubendiamide and 96% of diafenthiuron are provided by the Heliel pharmaceutical industry group, Inc.
Preparing a medicament: the original drug is respectively dissolved by DMF, 10000mg/L mother liquor is respectively prepared, on the basis of pre-test, the mother liquor is diluted by 0.1% Tween 80 aqueous solution, and 5 different concentrations are set for each treatment for standby.
The test was repeated: 80 larvae at 3 rd instar were treated at each concentration and divided into 4 replicates, with an aqueous solution containing 0.1% tween 80 as a control.
The test is carried out according to NY/T1154.14-2008 'indoor pesticide bioassay test standard part 14 leaf dipping method'.
Medicament treatment: according to the test criteria, taking relatively tender cabbage leaves, soaking in liquid medicines with different concentrations for 5 seconds, taking out, sucking off excessive liquid medicines, airing, and putting into a culture dish with the diameter of 12cm for culture. 20 heads of 3-instar larvae of diamondback moth were picked up in each petri dish, and each treatment was repeated 4 times, 48 hours after treatment, and the number of dead insects on each leaf was checked.
Data statistics and analysis: the blank control mortality rate is less than 5% without correction; the blank control mortality rate is 5% -10%, and the mortality rate needs to be corrected; if the blank control rate is more than 10%, the experiment needs to be carried out again.
And (3) test results: see Table 1
Table 1 toxicity test results of compounding of bromofenoxanil and diafenthiuron on cabbage diamondback moth
Figure RE-GDA0002268749820000091
As can be seen from Table 1, the mixture of the bromofenoxynil bisamide and the diafenthiuron has a better combined effect on cabbage plutella xylostella, the cotoxicity coefficient is greater than 80 when the weight ratio of the bromofenoxynil bisamide to the diafenthiuron is 1: 80-80: 1, the cotoxicity coefficient is greater than 120 when the weight ratio of the bromofenoxynil bisamide to the diafenthiuron is 1: 5-3: 1, the cotoxicity coefficient is greater than 150 when the weight ratio of the bromofenoxynil bisamide to the diafenthiuron is 1: 3-1: 1, and the cotoxicity coefficient is 181.16 when the weight ratio of the bromofenoxynil bisamide to the diafenthiuron is 1: 1. The reasonability and feasibility of the mixing of the brotrochan difluoride and the diafenthiuron for preventing and controlling the cabbage diamondback moth are demonstrated.
Examples of the effects of the field
Example 17: field control effect of blending of bromofenoxanil and diafenthiuron on cabbage diamondback moth
Test subjects, crops: cabbage diamondback moth.
And (3) test environment: the test was carried out in Hainan san with the same level of fertilizer and water management.
Test agents: 20% of a bromofenoxanil-diafenthiuron suspending agent (1:1), 15% of a bromofenoxanil-diafenthiuron water dispersible granule (1:2), 5% of a bromofenoxanil-flubendiamide suspending agent and 10% of a diafenthiuron suspending agent, wherein the agents are provided by the Heliel research and development center.
The test basis is as follows: GB-T17980.13-2000 part 27 of pesticide field efficacy test guidelines: the pesticide can be used for preventing and treating Lepidoptera larva of cruciferous vegetables.
The test method comprises the following steps: the application is started when the number of cabbage diamondback moths is not less than 20, and the application is carried out for 1 time.
The investigation method comprises the following steps: the population technique is investigated before the application of the pesticide, and the survival number of the cabbage caterpillars is investigated 1 day, 3 days and 7 days after the application of the pesticide.
Calculation formula and data analysis:
the prevention and treatment effect calculation formula is as follows:
Figure RE-GDA0002268749820000101
in the formula:
PT: control effect,%;
PT0the number of live insects before the pesticide is applied in the pesticide treatment area is the unit of head;
PT1the number of live insects after the pesticide is applied in the pesticide treatment area is the head;
CK0the number of live insects in unit of head before drug application in the blank control area;
CK1the number of live insects in unit of head after the drug is applied to the blank control area.
Two decimal points are reserved in the calculation result.
TABLE 2 field efficacy of bromantraniliprole and diafenthiuron in controlling cabbage diamondback moth
Figure RE-GDA0002268749820000102
Test results show that when 20% of the chlorfenapyr fluorobenzene bisamide-diafenthiuron suspension (1:1) and 15% of the chlorfenapyr fluorobenzene bisamide-diafenthiuron water dispersible granule (1:2) are used for preventing and treating cabbage diamondback moth, the prevention effect is higher than that of a single agent in 1 day, 3 days and 7 days after the pesticide is applied, and the efficacy duration is obviously better than that of the single agent; the control effect of different treatments after 7 days after the drug administration is 91.67%, 88.36%, 84.77%, 86.44%, 83.05% and 75.60% respectively.

Claims (9)

1. A composition containing bromofenoxanil and diafenthiuron is characterized in that: the active component A is bromofenoxuron fluorobenzene bisamide, and the active component B is diafenthiuron; wherein the weight part ratio of the two active components is 1: 80-80: 1.
2. The composition of claim 1, wherein: the weight part ratio of the active component A to the active component B is 1: 5-3: 1.
3. The composition of claim 1, wherein: 1: 3-1: 1 of bromofenoxanil and diafenthiuron.
4. The composition of claim 1, wherein: 1:1 of bromofenoxanil and diafenthiuron.
5. The composition of claim 1, wherein the composition is formulated into any dosage form suitable for agricultural use; preferably, the dosage form comprises any one of powder, dispersible tablet, granule, soluble powder, soluble granule, soluble tablet, emulsion powder, emulsion granule, water dispersion granule, wettable powder, microcapsule granule, powder, large granule, water dispersion tablet, microcapsule suspension, dispersible liquid, missible oil, emulsion granule, oil emulsion, emulsion in water, microemulsion, dispersible oil suspension, oil dispersion powder, suspension, suspoemulsion, soluble liquid, ultra-low volume liquid, suspension seed coating agent, dry seed treatment powder, dispersible seed treatment powder, suspension for seed treatment, and liquid for seed treatment; the preferable preparation formulation is suspending agent, water dispersible granule, emulsion in water, granule and wettable powder.
6. A composition according to claim 1, characterized in that: the weight percentage of the active components in the composition is between 0.5 and 95 percent.
7. Use of a composition according to claim 1 for controlling pests.
8. Use of a composition according to claim 7 for controlling pests, characterized in that: the composition is applied to a pest or a medium in which it is desired to control in an effective amount.
9. Use of a composition according to claim 7 for controlling pests, characterized in that: the pests are agricultural and forestry pests, urban sanitary pests or storage pests.
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CN106061254A (en) * 2013-10-18 2016-10-26 巴斯夫农业化学品有限公司 Use of pesticidal active carboxamide derivative in soil and seed application and treatment methods

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* Cited by examiner, † Cited by third party
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