CN115735934A - Agricultural insecticidal composition and application thereof - Google Patents
Agricultural insecticidal composition and application thereof Download PDFInfo
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- CN115735934A CN115735934A CN202211474547.6A CN202211474547A CN115735934A CN 115735934 A CN115735934 A CN 115735934A CN 202211474547 A CN202211474547 A CN 202211474547A CN 115735934 A CN115735934 A CN 115735934A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides an agricultural insecticidal composition and application thereof, belonging to the field of agricultural insecticides. The agricultural insecticidal composition provided by the invention comprises effective components and auxiliary components, wherein the effective components consist of isoxazolide and cyantraniliprole, and the weight ratio of the isoxazolide to the cyantraniliprole is (1-80). The agricultural insecticide provided by the invention takes the isoxazolide and the cyantraniliprole as effective components, has the advantages of high insecticidal activity, long lasting period, high quick action, low toxicity, environmental protection and the like, and the dosage of the two insecticides is reduced when being compounded compared with that when being used singly, so that the insecticide effect is obviously improved, the safety is increased, and the environmental pollution is reduced.
Description
Technical Field
The invention belongs to the field of agricultural pesticides, and particularly relates to an agricultural pesticide composition and application thereof.
Background
Isoxazolidines (generic name: isocycloseram; trade name: plinazolin; development code: SYN 547407), which are bisaryl isoxazoline insecticides developed by antecedent, are non-competitive inhibitors of the gamma-aminobutyric acid (GABA) receptor and are classified as group 30 by IRAC. The composition can be kept stable under sunlight and is rain wash resistant, so that the spraying interval time can be prolonged, the spraying frequency is reduced, the pesticide application cost is reduced, and the crop yield and quality are improved.
Cyantraniliprole, english name: cyantraniliprole, chemical name: 3-bromo-1- (3-chloro-2-pyridinyl) -N- { 4-cyano-2-methyl-6- [ (methylamino) carbonyl ] phenyl } -1H-pyrazole-5-carboxamide. The compound pesticide is a high-efficiency and safe dimethylformamide pesticide developed by DuPont company in America, the action mechanism of the compound pesticide is to activate a ryanodine receptor, and intracellular calcium ions are unlimitedly released to cause muscle relaxation type paralysis, activity pause and paralysis of insects until the insects die completely, and lepidoptera, homoptera, hemiptera, coleopteran and thysanoptera pests can be effectively prevented.
Along with the popularization and the large-scale use of pesticides, pesticide resistance of pesticide varieties with single active components is easy to generate in the aspect of agricultural pesticide prevention and control, and meanwhile, the environment pollution is aggravated due to the fact that the pesticide varieties are applied for many times, so that the yield of crops is greatly reduced, and the production cost is greatly increased. One approach to controlling agriculturally-resistant pests is to derive new ingredients that are non-cross-resistant to existing species. However, the development cost of new active ingredients is high, the development period is long, and the speed of resistance generation of pests cannot be kept up with ever. The other method is to compound and combine different components, and judge whether certain compound has the addition, synergy or antagonism effect through the actual application effect. In most cases, the compounding is generally a synergistic effect, the compounding combination which really has the synergistic effect is less, the synergistic effect is obvious, the compounding with a very high synergistic ratio is less, and therefore, the research and development of the high-efficiency low-toxicity environment-friendly pesticide composition has a positive effect on the sustainable development of agriculture.
Disclosure of Invention
The invention provides an agricultural insecticidal composition and application thereof, the composition takes isoxazolide and cyantraniliprole as effective components, and has the advantages of high insecticidal activity, long lasting period, high quick-acting property, low toxicity, environmental protection and the like.
In order to achieve the purpose, the invention provides an agricultural insecticidal composition, which comprises an effective component and an auxiliary component, wherein the effective component consists of isoxazolide and cyantraniliprole, and the weight ratio of the isoxazolide to the cyantraniliprole is 1.
Preferably, the weight ratio of the active ingredients isoxafluben amide and cyantraniliprole is 1.
Preferably, the effective component accounts for 1-90% of the total weight of the insecticidal composition.
Preferably, the auxiliary components comprise a carrier and an auxiliary agent;
the carrier is selected from at least one of water, methyl oleate, soybean oil, corn oil and fillers;
the auxiliary agent is a surfactant or a surfactant and a functional auxiliary agent. It will be appreciated that the amount of surfactant added is from 2% to 30% by weight of the total composition.
Preferably, the filler is at least one selected from kaolin, diatomite, bentonite, attapulgite, white carbon black, starch and light calcium carbonate;
the surfactant is selected from at least one of an emulsifier, a dispersant, a wetting agent or a penetrant;
the auxiliary agent is at least one selected from an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or an antifoaming agent.
It is understood that the emulsifier is selected from a mixture consisting of one or more of agricultural milk 500# (calcium dodecylbenzene sulfonate), tristyrylphenol polyoxyethylene ether, OP series phosphate ester (nonylphenol polyoxyethylene ether phosphate ester), 600# phosphate ester (phenylphenol polyoxyethylene ether phosphate ester), styrene polyoxyethylene ether ammonium sulfate salt, magnesium alkyldiphenyl ether disulfonate, triethanolamine salt, agricultural milk 400# (benzyldimethylphenol polyoxyethylene ether), agricultural milk 700# (alkylphenol formaldehyde resin polyoxyethylene ether), ning milk 36# (phenethylphenol formaldehyde resin polyoxyethylene ether), agricultural milk 1600# (phenethylphenol polyoxyethylene polyoxypropylene ether), ethylene oxide-propylene oxide block copolymer, OP series (nonylphenol polyoxyethylene ether), BY series (castor oil polyoxyethylene ether), agricultural milk 33# (alkylaryl polyoxyethylene polyoxypropylene ether), span series (sorbitan monostearate), tween series (polyoxyethylene sorbitan series) or AEO (polyoxyethylene fatty alcohol).
The dispersing agent is selected from one or a mixture of a plurality of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, calcium alkylbenzene sulfonate, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ether or glycerin fatty acid ester polyoxyethylene ether.
The wetting agent is selected from one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrant F, saponin powder, silkworm excrement or soapberry powder.
The penetrating agent is selected from one or a mixture of more of penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrating agent T (diisooctyl maleate sulfonate), azone or organic silicon.
The antifreezing agent is a mixture consisting of one or more of ethylene glycol, propylene glycol, glycerol or urea.
The thickening agent is selected from one or a mixture of more of gelatin, sodium carboxymethylcellulose, hydroxyethyl cellulose, sodium polyacrylate, modified starch, xanthan gum, bentonite, silicon dioxide or magnesium aluminum silicate.
The stabilizer is selected from one or more of epoxidized soybean oil, epichlorohydrin, BHT, ethyl acetate or triphenyl phosphate.
The disintegrating agent is selected from one or more of bentonite, urea, ammonium sulfate, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate.
The defoaming agent is selected from one or a mixture of more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds or C8-C10 fatty alcohol compounds.
Preferably, the dosage form of the compound is any one of wettable powder, water dispersible granules, suspending agents, suspoemulsions, microemulsions, aqueous emulsions and dispersible oil suspending agents.
It is understood that, when the composition is in the form of wettable powder, the composition comprises the following components in percentage by weight: 0.01-80% of isoxazolide, 0.01-80% of cyantraniliprole, 1-12% of dispersing agent, 1-8% of wetting agent and the balance of filler.
When the composition is a water dispersible granule, the composition comprises the following components in percentage by weight: 0.01-80% of isoxazolide, 0.01-80% of cyantraniliprole, 1-12% of dispersing agent, 1-8% of wetting agent, 1-10% of disintegrating agent, 0-8% of binding agent and the balance of filler.
When the composition is a suspending agent, the composition comprises the following components in percentage by weight: 0.01 to 50 percent of isoxazolide, 0.01 to 50 percent of cyantraniliprole, 1 to 10 percent of dispersant, 1 to 10 percent of wetting agent, 0.01 to 2 percent of defoaming agent, 0 to 2 percent of thickening agent, 0 to 8 percent of antifreeze agent and 100 percent of deionized water.
When the composition is a suspension emulsion, the composition comprises the following components in percentage by weight: 0.01-50% of isoxazolide, 0.01-50% of cyantraniliprole, 1-10% of emulsifier, 1-10% of dispersant, 1-20% of solvent, 0.01-2% of defoaming agent, 0-2% of thickening agent, 0-8% of antifreeze agent and 100% of deionized water.
When the composition is a soluble agent, the composition comprises the following components in percentage by weight: 0.01-50% of isoxazolide, 0.01-50% of cyantraniliprole, 2-6% of cosolvent, 1-10% of wetting agent, 0-8% of antifreeze agent and 100% of deionized water.
When the composition is in the form of emulsion in water, the composition comprises the following components in percentage by weight: 0.01-50% of isoxazole insect acyl, 0.01-50% of cyantraniliprole, 1-30% of solvent, 1-12% of emulsifier, 0-8% of antifreeze agent, 0.01-2% of defoaming agent, 0-2% of thickening agent and 100% of deionized water.
When the composition is a microemulsion, the composition comprises the following components in percentage by weight: 0.01 to 50 percent of isoxazolide, 0.01 to 50 percent of cyantraniliprole, 3 to 25 percent of emulsifier, 1 to 30 percent of solvent, 0 to 8 percent of antifreeze, 0.01 to 2 percent of defoamer and 100 percent of deionized water.
When the composition is a dispersible oil suspending agent, the composition comprises the following components in percentage by weight: 0.01-50% of isoxazolide, 0.01-50% of cyantraniliprole, 1-20% of emulsifier, 1-10% of dispersant, 0.01-2% of defoamer, 0-2% of thickener, 0-8% of antifreeze, methyl oleate or other oils such as soybean oil, rapeseed oil, corn oil and the like are added continuously to 100%.
Preferably, when the insecticidal composition is a liquid preparation, the insecticidal composition contains 1-60% of active ingredients by weight, preferably 5-50%; when the insecticidal composition is a solid preparation, the insecticidal composition contains 5-80% of active ingredients by weight, preferably 10-80%. It will be appreciated that the amount of active ingredient in the composition will depend on the amount applied alone, and also on the ratio of one compound to another and the degree of synergistic effect, and also on the disease targeted. In order to achieve optimum results, the addition should be carried out in practice in accordance with the amounts indicated above.
The invention also provides application of the agricultural insecticidal composition according to any one of the technical schemes in prevention and treatment of hemiptera, coleoptera, lepidoptera, diptera, thysanoptera pests and mites of crops.
Preferably, the pests are selected from at least one of prodenia litura, plutella xylostella, tobacco thrips, aphids and red spiders, and preferably cabbage aphids, cotton aphids, pear tree scale insects and soybean aphids.
It is understood that the crops mainly refer to vegetables, cotton, fruit trees, corn, tobacco, flowers, melons, beans and the like.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides an agricultural insecticide, which takes isoxazolide and cyantraniliprole as effective components, has the advantages of high insecticidal activity, long lasting period, high quick-acting property, low toxicity, environmental protection and the like, and the dosage of the two insecticides is reduced when being compounded compared with that when being used singly, thereby obviously improving the insecticidal effect, increasing the safety and reducing the environmental pollution.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Wettable powder
Example 1: (50% isoxazolide-cyantraniliprole wettable powder) 1
The components and contents are as follows: isoxazolecarboxamide: 12.5 percent; cyantraniliprole bromide: 37.5 percent; wetting agents sodium lauryl sulfate: 5 percent; dispersant calcium lignosulfonate: 8 percent; dispersant naphthalene sulfonate: 4 percent; the filler is white carbon black: 5%, kaolin: and the balance.
Example 2: (70% isoxazolide-cyantraniliprole wettable powder) 1
The components and contents are as follows: isoxazolecarboxamide: 10 percent; cyantraniliprole bromide: 60 percent; wetting agent sodium dodecylbenzene sulfonate: 3 percent; dispersant calcium alkyl benzene sulfonate: 7 percent; dispersant naphthalenesulfonate: 3 percent; the filler is white carbon black: 5%, light calcium carbonate: and (4) the balance.
Example 3: (11% isoxazolide-cyantraniliprole wettable powder) 1
The components and contents are as follows: isoxazolecarboxamide: 10 percent; cyantraniliprole bromide: 1 percent; the wetting agent is prepared from nekal BX: sodium dodecyl benzene sulfonate and wetting penetrant F, the dosage is 1%, 1% and 1% respectively; the dispersant is selected from polycarboxylate and naphthalenesulfonate, and the use amounts of the polycarboxylate and the naphthalenesulfonate are 1% and 3% respectively; white carbon black: 3 percent; the filler is diatomite: 20%, kaolin: and (4) the balance.
The preparation method of the above examples 1 to 3 is as follows:
according to the components and the weight percentage thereof provided by the embodiments 1 to 3, the effective components of cyantraniliprole and isoxazolidamide are added into the filler, and the auxiliary agents such as wetting agent, dispersing agent and the like are added into the filler, and the mixture is uniformly mixed, and is subjected to air flow crushing and then mixed to prepare the wettable powder. The main equipment is mixer and jet mill.
In the above embodiment, all indexes of the preparation sample all meet the requirements in the management specification of wettable powder.
Water dispersible granule
Example 4: (30% isoxazolide-cyantraniliprole water dispersible granule) 1
The components and contents are as follows: isoxazolecarboxamide: 10 percent; cyantraniliprole bromide: 20 percent; wetting agent sodium dodecylbenzenesulfonate: 3 percent; dispersant alkyl naphthalene sulfonate formaldehyde condensate: 8 percent; filler attapulgite: and (4) the balance.
Example 5: (40% isoxazolidinamide-cyantraniliprole water dispersible granules) 1
The components and contents are as follows: isoxazolecarboxamide: 10 percent; cyantraniliprole bromide: 30 percent; wetting agent Chinese honeylocust fruit powder: 3 percent; dispersant Naphthalenesulfonic acid Formaldehyde condensate sodium salt: 2 percent; dispersant polycarboxylate: 2 percent; the balance of filler attapulgite.
The preparation method of the above examples 4 to 5 is:
adding the effective components cyantraniliprole and the isoxazolidamide into a filler according to the components and the weight percentage thereof provided by the embodiments 4 to 5, adding auxiliary agents such as a wetting agent, a dispersing agent and the like into the filler, mixing, adding 10 to 25 percent of water after airflow crushing, and then kneading, granulating, drying and screening to prepare 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. The main equipment is a mixer: jet mills, kneaders, extrusion granulators, drying rooms or fluidized bed drying, or boiling granulators, sieving machines.
In the above embodiment, all indexes of the preparation sample meet the requirements in the management specification of the water dispersible granule.
Suspending agent
Example 6: (40% isoxazolide-cyantraniliprole suspension) 1
The components and contents are as follows: isoxazolecarboxamide: 10 percent; cyantraniliprole bromide: 30 percent; wetting agent NP-10:2 percent; dispersant polycarboxylate: 2 percent; dispersant phosphate ester: 2 percent; the thickening agent is selected from xanthan gum and aluminum magnesium silicate, and the use amounts are respectively 0.1% and 1%; antifreeze ethylene glycol: 5 percent; defoaming agent silicone compound: 0.2 percent; water and the balance.
Example 7: (5.5% isoxazolide-cyantraniliprole suspension) 1
The components and contents are as follows: isoxazolecarboxamide: 0.5 percent; cyantraniliprole bromide: 5 percent; wetting agent NP-10:1 percent; dispersant alkylphenol ethoxylates: 3 percent; dispersant polycarboxylate: 2 percent; the thickening agent is selected from xanthan gum and aluminum magnesium silicate, and the using amounts are 0.15% and 2% respectively; antifreeze ethylene glycol: 5 percent; defoaming agent silicone oil: 0.2 percent; water: and (4) the balance.
Comparative example 1: (30% Cyantraniliprole suspension concentrate)
The components and contents are as follows: :30% of cyantraniliprole; wetting agent NP-10:2 percent; dispersant polycarboxylate: 2 percent; dispersant phosphate ester: 3 percent; dispersant alkylphenol ethoxylates: 2 percent; the thickening agent is made of xanthan gum and aluminum magnesium silicate, and the using amounts are 0.1% and 0.8% respectively; antifreeze ethylene glycol: 5 percent; defoaming agent silicone oil: 0.2 percent; water: and (4) the balance.
Comparative example 2: (30% isoxazolidinamide suspension concentrate)
The components and contents are as follows: isoxazolecarboxamide: 30 percent; wetting agent NP-10:2 percent; dispersant polycarboxylate: 2 percent; dispersant phosphate ester: 3 percent; dispersant high-molecular Polymer: 2 percent; the thickening agent is made of xanthan gum and aluminum magnesium silicate, and the using amounts are 0.1% and 1% respectively; antifreeze ethylene glycol: 5 percent; defoaming agent silicone oil: 0.2 percent; water: and the balance.
The preparation methods of the above examples 6 to 7 and comparative examples 1 to 2 were:
according to the components and the weight percentages thereof provided by the embodiments 6-7 and the comparative examples 1-2, the effective components of cyantraniliprole and the auxiliary agents of isoxazole, wetting agent, dispersing agent, thickening agent, antifreezing agent, defoaming agent and the like are sequentially placed in a reaction kettle, water is added for uniform mixing, and the product is obtained through high-speed shearing, wet sanding and finally homogeneous filtration. The main equipment is a batching kettle, a colloid mill or a homogeneous mixer, and a sand mill.
In the above examples and comparative examples, all the indexes of the preparation samples meet the requirements of the suspending agent management specifications.
Dispersible oil suspension
Example 8: (20% isoxazolide-cyantraniliprole dispersible oil suspension) 1
The components and contents are as follows: isoxazolecarboxamide: 10%, cyantraniliprole: 10%, calcium salt of dodecylbenzene sulfonic acid: 3%, castor oil polyoxyethylene ether: 10%, fatty alcohol-polyoxyethylene ether: 3 percent of thickening agent, organic soil, fumed silica and the balance of methyl oleate.
Example 9: (35% isoxazolide-cyantraniliprole dispersible oil suspension) 2
The components and contents are as follows: isoxazolecarboxamide: 15%, cyantraniliprole: 20%, calcium dodecyl benzene sulfonate: 4%, castor oil polyoxyethylene ether: 12%, fatty alcohol polyoxyethylene ether: 2%, isomeric alcohol ethers: 2 percent of thickening agent, organic soil, fumed silica and the balance of methyl oleate.
The preparation method of the above examples 8 to 9 is as follows:
according to the components and the weight percentage thereof provided by the embodiments 8 to 9, the methyl oleate, the effective component cyantraniliprole, the isoxazolide, the emulsifier, the dispersant, the thickener, the antifreezing agent, the defoamer and other auxiliary agents are sequentially placed in a reaction kettle, uniformly mixed, subjected to high-speed shearing, wet sanding and finally, subjected to uniform filtration to obtain the product. The main equipment is a batching kettle, a colloid mill or a homogeneous mixer, and a sand mill.
All indexes of the preparation samples in the above examples meet the requirements in the management specification of the dispersible oil suspending agent.
Indoor toxicity assay
By indoor toxicity measurement, co-toxicity coefficient (CTC) of two medicaments compounded according to a certain proportion is determined, wherein CTC is less than 80 and is antagonistic action, CTC is more than or equal to 80 and is less than or equal to 120 and is additive action, and CTC is more than 120 and is synergistic action, and field test is carried out on the basis.
The test method comprises the following steps: during the test, the aqueous suspension mother liquor of each mixed agent is respectively diluted into five series of concentrations and respectively placed in beakers for standby. Soaking leaves which are not contacted with any medicament and have the same size in prepared liquid medicine for 5s, taking out, naturally drying, placing in an insect box, inoculating tested larvae, feeding at 25 ℃, repeating the treatment for 3 times, wherein the number of the tested insects used in each repetition is 50, simultaneously setting blank controls, checking the number of dead insects in 72h, calculating the mortality and correcting the mortality, solving a virulence regression equation and calculating LC 50 The value is obtained. If the control mortality is greater than 10%, the test is considered invalid. The calculation formula is as follows:
death rate (%) = (number of live insects before medicine-number of live insects after medicine)/number of live insects before medicine
Mortality correction (%) = [ (treatment-control mortality)/(100-control mortality) ] × 100
The corrected mortality of pests was converted into a probability value (y), the treated concentration (. Mu.g/ml) was converted into a logarithmic value (x), a virulence regression equation was obtained by the least square method, and the value of each agent was calculated therefrom. And (4) calculating a co-toxicity coefficient CTC according to a Sun cloud Pei formula method. The calculation formula is as follows (with isoxazolide as a standard medicament, the toxicity index is 100):
LC of Toxicity Index (TI) of cyantraniliprole (= isoxazolidamide) 50 LC of/cyantraniliprole 50 ×100
Actual virulence index (ATI) of M = [ LC of isoxazolidamides 50 LC of/M 50 ]×100
Theoretical virulence index (TTI) = TI XP of isoxazolidamide for M Isotolfenpyrad + TI XP of effective cyantraniliprole Cyantraniliprole bromide
Co-toxicity coefficient (CTC) = [ TTI of ATI/M of M ] × 100
In the formula: m is a mixture of different proportions
P Isoxazolidines Is the proportion of the isoxazolidamide in the composition
P Cyantraniliprole bromide The proportion of cyantraniliprole in the composition
The virulence assay results are shown in table 1 and the potentiation assay results are shown in table 2. Wherein CK1 is an isoxazolide single agent, and CK2 is a cyantraniliprole single agent.
TABLE 1 toxicity test results of different proportions of isoxazolepropanamide and cyantraniliprole on green cabbage aphid
Table 2 synergistic assay results of different ratios of isoxazolide and cyantraniliprole for myzus persicae
As can be seen from tables 1 and 2, the weight ratio of isoxazolidinamide to cyantraniliprole is 2:1:1: 1:2:1:3:1:4:1:8:1, when the weight ratio is 1: 1:3:1:4: the synergistic effect is most obvious when the ratio of 1. The application of the compound preparation of the isoxazolepropanamide and the cyantraniliprole with the weight ratio of 2 to 1 to 10 to prevent and control the cabbage myzus persicae is reasonable and feasible.
The prevention and control effects of the compound pesticide on cotton aphids, pear scale insects and soybean aphids are respectively measured by adopting the method, and the synergistic coefficients in different proportioning ranges are calculated, so that the weight ratio of isoxazolide to cyantraniliprole is 2:1:1: 1:2:1:3:1:4:1:8:1, the composition shows a synergistic effect when the weight ratio: 2:1:1:1:1:2:1:3:1:4: 1.
Field spray test
The following experiments were conducted on myzus persicae using the agents of examples 1, 4, 6 and 8 and the agents of comparative examples 1 and 2 at the dilution ratios shown in table 3 to more fully and accurately illustrate the effects of the present invention, and the results of the experiments are shown in table 3 below.
Wherein: example 1:50% isoxazolide-cyantraniliprole wettable powder (12.5 + 37.5); example 4:30% isoxazolide-cyantraniliprole water dispersible granule (10 + 20); example 6: isoxafluben amide, cyantraniliprole aqueous suspending agent 40% (10 + 30); example 8:20% isoxazolide-cyantraniliprole dispersible oil suspending agent (10 + 10); comparative example 1:30% cyantraniliprole aqueous suspension, comparative example 2:30% isoxazolidinamide aqueous suspension.
In this test, the agents of examples 1 to 8: comparative examples 1-2 agents and no agents were used for 11 treatments, each of which was repeated 4 times for 44 treatment plots, and the application of the insecticide was carried out at the early stages of development of myzus rapae. Randomly taking 3 points from each treatment district, taking 6 Chinese cabbages from each point, surveying the number of live insects on the Chinese cabbages respectively before and after the Chinese cabbages are taken 1 day, 3 days and 7 days, calculating the control effect of each treatment according to the natural insect population increase and decrease rate of the control area, and observing and recording the growth condition of the Chinese cabbages in each district: and (5) causing phytotoxicity.
The drug effect calculation method comprises the following steps:
reduction rate (%) = [ (number of insects before drug application-number of insects after drug application)/number of insects before drug application ] × 100
Control effect (%) = [ population reduction rate in control area-population reduction rate in control area/(100-population reduction rate in control area) ] × 100
The significance determinations were compared using the "DMRT" method.
TABLE 3 control of Myzus persicae by the differently treated formulations
As can be seen from the test results in Table 3, the control effects of the agents of examples 1, 4, 6 and 8 on the aphis brassicae of Chinese cabbage are all more than 85% after the application of the agent for 1 day, 3 days and 7 days, and are obviously higher than those of the single agents of comparative examples 1-2. The agents in the embodiments 1, 4, 6 and 8 have low dosage, can achieve good control effect only in 1/2 of the agents in the embodiments 1-2, have long lasting time, and still achieve good control effect 7 days after application. The experiment period is observed, and the medicament of each embodiment has no phytotoxicity to Chinese cabbage and good safety. The results show that the isoxazolide and the cyantraniliprole have the advantages of obvious synergistic action and prolonged drug effect after being compounded.
Claims (9)
1. The agricultural insecticidal composition is characterized by comprising effective components and auxiliary components, wherein the effective components consist of isoxazolide and cyantraniliprole, and the weight ratio of the isoxazolide to the cyantraniliprole is 1-80.
2. The agricultural insecticidal composition according to claim 1, wherein the weight ratio of the active ingredients isotolfenpyrad to cyantraniliprole is 1.
3. An agricultural insecticidal composition according to claim 1 or 2 wherein the active ingredient is present in the insecticidal composition in an amount of 1% to 90% by weight of the total weight.
4. An agricultural insecticidal composition as claimed in claim 1 wherein said auxiliary ingredients include carriers and adjuvants;
the carrier is selected from at least one of water, methyl oleate, soybean oil, corn oil and fillers;
the auxiliary agent is a surfactant or a surfactant and a functional auxiliary agent.
5. An agricultural insecticidal composition according to claim 4, wherein said filler is selected from at least one of kaolin, diatomaceous earth, bentonite, attapulgite, white carbon, starch or light calcium carbonate;
the surfactant is selected from at least one of an emulsifier, a dispersant, a wetting agent or a penetrant;
the auxiliary agent is selected from at least one of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or an antifoaming agent.
6. An agricultural insecticide as claimed in any one of claims 1 to 5, wherein the formulation is any one of wettable powder, water dispersible granule, suspension, suspoemulsion, microemulsion, aqueous emulsion and oil dispersible suspension.
7. An agricultural insecticidal composition according to claim 6, wherein when the insecticidal composition is a liquid formulation, it contains 1% to 60% by weight of active ingredient, preferably 5% to 50%;
when the insecticidal composition is a solid preparation, the insecticidal composition contains 5-80% of active ingredients by weight, preferably 10-80%.
8. Use of the pesticidal agricultural composition according to any one of claims 1 to 7 for controlling hemipteran, coleopteran, lepidopteran, dipteran, thysanopteran pests and mites of crops.
9. The use according to claim 8, wherein the pests are selected from at least one of prodenia litura, plutella xylostella, thrips tabaci, aphids and red spiders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211474547.6A CN115735934A (en) | 2022-11-23 | 2022-11-23 | Agricultural insecticidal composition and application thereof |
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| CN202211474547.6A CN115735934A (en) | 2022-11-23 | 2022-11-23 | Agricultural insecticidal composition and application thereof |
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- 2022-11-23 CN CN202211474547.6A patent/CN115735934A/en not_active Withdrawn
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