CN111789122A - Acaricidal composition containing oxapyrile-acarbonitrile and spirocyclic tetronic acid pesticide - Google Patents
Acaricidal composition containing oxapyrile-acarbonitrile and spirocyclic tetronic acid pesticide Download PDFInfo
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
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Abstract
The invention discloses a composition containing pyraclostrobin nitrile and pyrethroid pesticide spirocyclic tetronic acid pesticide, wherein the weight ratio of the pyraclostrobin nitrile to the spirocyclic tetronic acid pesticide in the composition is 1-50: 50-1. The invention also provides an acaricide containing the composition. The composition and the acaricide provided by the invention are suitable for controlling mites.
Description
Technical Field
The invention belongs to the field of pesticides, and relates to an acaricidal composition.
Background
The agricultural pest mites are small in size, fast in propagation, strong in adaptability and easy to generate resistance, are one of pests which are difficult to control, damage leaves, tender tips, buds and fruits of plants, and can cause leaf fall, growth inhibition and even death of the plants after the number of pests is increased sharply.
In order to more effectively control the harmful mites and delay the resistance of plants to acaricides, the acaricides with different action mechanisms are compounded and combined in a better way, so that a better and efficient product formula is obtained and is used for controlling the harmful mites.
The pyraclonil is an acrylonitrile acaricide, is converted into a hydroxyl compound through metabolism, acts on an electron transfer chain of a respiratory system, disturbs the action of succinate dehydrogenase and inhibits the normal effect of mitochondria so as to achieve the purpose of preventing and treating, has higher biological activity on adult mites, nymphs and eggs,
although the oxazofen has higher biological activity on adult mites, nymphs and eggs, the acarid still easily generates resistance to the acarid if being used for a long time, so that the control effect of the acarid is increasingly poor. In order to maintain or even improve the control effect of the pyrazofen-ethyl, delay the generation of the drug resistance of harmful mites and prolong the service life of the medicament, the pyrazofen-ethyl and other miticides are compounded, so that the method is a better method.
Therefore, there is a need for technical improvements to oxazofen, and in particular for further research into oxazofen-containing acaricide compositions.
Disclosure of Invention
The invention aims to provide an acaricide composition containing pyrazofen-ethyl cyanide, which has the advantages of high efficiency, low toxicity and long lasting period, can effectively prevent and treat common pest mites in crops and is beneficial to comprehensive control of the pest mites.
The invention provides a composition containing pyraclostrobin nitrile and spirocyclic tetronic acid pesticide.
The composition provided by the invention comprises the active ingredients of the oxadixyl acarbonitrile and the spirocyclic tetronic acid pesticide. The weight ratio of the active ingredients of the pyraclostrobin and the spirocyclic tetronic acid pesticide is preferably 1-50: 50-1.
More preferably, in the composition, the weight ratio of the active ingredients of the pyrazofen-ethyl and the spirocyclic tetronic acid pesticide is 1-30: 30-1.
More preferably, in the composition, the weight ratio of the active ingredients of the pyrazofen-ethyl and the spirocyclic tetronic acid pesticide is 1-10: 10-1.
Most preferably, in the composition, the weight ratio of the active ingredients of the pyrazofen-ethyl and the spirocyclic tetronic acid pesticide is 1-4: 4-1.
The spirocyclic tetronic acid pesticide serving as an active ingredient of the composition provided by the invention can be a spirocyclic tetronic acid pesticide commonly used in the field.
In a preferred embodiment, the spirocyclic tetronic acid pesticide is at least one selected from the group consisting of spirodiclofen, spiromesifen, spirotetramat and spirodiclofen.
When the spirocyclic tetronic acid pesticide as the active ingredient is a combination of more than one spirocyclic tetronic acid pesticide, the spirocyclic tetronic acid pesticides may be combined in any proportion.
The invention also provides an acaricide, which comprises 1-90% of the composition by weight, and the balance of carriers and auxiliary agents acceptable in pesticide preparations.
As a preferable mode, the acaricide provided by the invention contains 5-40% of the composition by weight, and the balance is acceptable carriers and auxiliary agents in pesticide preparations.
The carrier used in the formulation of the acaricide provided by the invention can be any carrier used in the development and production processes of pesticide preparations, and can be solid or liquid.
Suitable solid supports include: minerals, plants, synthetic fillers and inorganic salts. Wherein the minerals include silicates, carbonates, sulfates, oxides, plants, synthetic fillers and inorganic salts. Silicates such as kaolin, sepiolite, nacrite, montmorillonite, mica, vermiculite, pyrophyllite, talc, and the like. Carbonates, for example: calcium carbonate, dolomite, and the like. And sulfates such as ammonium sulfate, sodium sulfate, calcium sulfate, etc. Oxides such as quicklime, magnesia lime, diatomaceous earth, and the like. Plants, for example: citrus pulp, corn cob cores, rice hull powder, rice hulls, soybean straw powder, tobacco powder, walnut shells, sawmilling powder and the like. Synthetic fillers such as precipitated calcium carbonate hydrate, precipitated calcium carbonate, white carbon, and the like. Inorganic salts such as potassium chloride and sodium chloride.
The liquid carrier includes water and an organic solvent. Suitable organic solvents include aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, alcohols, ethers, ketones, specialty solvents, vegetable oils, and methylated vegetable oils. Aromatic hydrocarbons, such as benzene, xylene, trimethylbenzene, toluene. Chlorinated aliphatic hydrocarbons such as chloroform, methylene chloride, chloroform, carbon tetrachloride, and polychlorinated ethane, etc. Aliphatic hydrocarbons such as petroleum fractions, cyclohexane, light mineral oil, paraffin and the like. Alcohols such as methanol, ethanol, isopropanol, butanol, isobutanol, ethylene glycol, propylene glycol, glycerol, fatty alcohols, and the like. Ethers such as propylene glycol ethyl ether, propylene glycol methyl ether, petroleum ether and the like. Ketones such as acetone, cyclohexanone, isophorone, N-methyl-pyrrolidone, N-octyl pyrrolidone, etc. Specific solvents such as dimethylformamide, dimethylsulfoxide, polyethylene glycol, hexanenitrile, and the like.
The organic solvents mentioned above may be used alone, or in admixture with water.
The acaricide provided by the invention can select one or more of a surfactant, a defoaming agent, a thickening agent, a suspending agent and an antifreezing agent as required by the aid of the aid used in the preparation of the acaricide, and can also comprise other aids commonly used in the industry as required.
The surfactant may be one, two or three selected from the group consisting of an emulsifier, a dispersant and a wetting agent. The emulsifier includes nonionic emulsifier and anionic emulsifier. The nonionic emulsifier is preferably nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, styrylphenyl polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, hydroxyl-terminated polyoxyethylene polyoxypropylene ether, styrylphenol formaldehyde resin polyoxyethylene polyoxypropylene ether, or castor oil polyoxyethylene ether. The anionic emulsifier is preferably calcium dodecylbenzene sulfonate, ammonium triphenethyl phenol polyoxyethylene phosphate, ammonium nonylphenol polyoxyethylene phosphate and ammonium castor oil polyoxyethylene phosphate.
The dispersing agent can be one or more selected from acrylic acid homopolymer sodium salt, maleic acid disodium salt, naphthalene sulfonic acid formaldehyde condensate sodium salt, rosin block polyoxyethylene ether polyoxypropylene ether sulfonate, hydroxyl-terminated polyoxyethylene polyoxypropylene ether block copolymer, triphenyl polyoxyethylene phenol phosphate, fatty alcohol polyoxyethylene ether phosphoric acid and p-hydroxyphenyl lignosulfonate sodium salt.
The wetting agent can be one or more selected from fatty alcohol-polyoxyethylene ether, naphthalene sulfonate, sodium dodecyl sulfate and alkylphenol resin polyoxyethylene ether sulfate.
The acaricide provided by the invention can be further added with a thickening agent according to requirements in the preparation of the acaricide.
The thickener is one or more selected from xanthan gum, magnesium aluminum silicate, sodium alginate, sodium carboxymethylcellulose, acacia, gelatin and polyvinyl alcohol.
The acaricide provided by the invention can be prepared into dosage forms according to the method commonly used in the field.
As a preferable mode, the acaricide is missible oil, oil suspension, suspending agent, suspoemulsion, wettable powder, water dispersible granule, microcapsule suspending agent or aqueous emulsion.
The composition and the acaricide provided by the invention are suitable for controlling mites.
As a preferable mode, the composition and acaricide provided by the invention are particularly suitable for controlling mites selected from at least one of citrus red mite, tetranychus cinnabarinus, red spider apple mite, red cotton spider mite, red strawberry spider mite, tetranychus viennensis and yellow tea mite.
As a preferred mode, the compositions and acaricides provided by the present invention are suitable for controlling mites on plants.
As a more preferred mode, the compositions and acaricides provided by the present invention are suitable for controlling mites on citrus, cotton, apples, and vegetables.
Compared with the prior art, the composition provided by the invention has the following advantages:
(1) the two active ingredients in the composition show excellent synergistic effect in a proportioning range, the acaricidal effect is obviously improved compared with that of a single agent, and the composition also has the advantages of good quick action and long lasting effect;
(2) the two active ingredients are reasonably mixed by utilizing different action modes and different action mechanisms of the two active ingredients on pest mites, so that the service life of the pesticide is prolonged, and the generation of drug resistance of the pest mites is delayed;
(3) the dosage is reduced, and the drug cost of farmers is reduced.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
In the following examples, all percentages are by weight unless otherwise indicated.
First, indoor toxicity determination
The applicant carried out indoor toxicity assay tests on compositions containing oxazoetoxynil and spirocyclic tetronic acid pesticides. The test refers to the indoor biological determination test criterion of the pesticide (agricultural industry standard NY/T1154.7-2006) and the formulated pesticide biological activity evaluation SOP (pesticide volume), and adopts an immersion method.
The combined effect was calculated using the following method:
theoretical virulence index of the mix (TTI) ═ A virulence index x A content in the mix (%)
+ B virulence index x B content in the mix (%);
co-toxicity coefficient: if the content is more than 120, the synergistic effect is shown; if the content is less than 80, antagonism is indicated; if greater than 80 and less than 120, an additive effect is indicated.
Example 1 Combined synergistic Effect of Metronidazole and spirodiclofen composition on Tetranychus cinnabarinus
TABLE 1 composition of oxadixyl-chlorfenapyr and spirodiclofen for Tetranychus cinnabarinus
(Tetranychus Cinnabarinus) combined synergistic action
Example 2 Combined synergistic Effect of Metronidazole and spiromesifen composition on Tetranychus cinnabarinus
TABLE 2 Dermatophagoides pteronyssinus and spiromesifen combination for Tetranychus cinnabarinus
(Tetranychus Cinnabarinus) combined synergistic action
As can be seen from tables 1-2, when the mass ratio of the oxadixyl acaricidal nitrile to the spirocyclic tetronic acid pesticides (spirodiclofen and spiromesifen) is 50: 1-1: 50, the co-toxicity coefficients are both greater than 120, and the pesticide has a synergistic effect on tetranychus cinnabarinus. The pesticide mixture of the pyrazofen-ethyl and the spirocyclic tetronic acid has rationality and feasibility.
Second, prevention and cure effect of dosage form
Example 3, 40% Azolorinil spirodiclofen suspension
According to the formula of 20% of pyraclostrobin, 20% of spirodiclofen, 4% of naphthalenesulfonic acid formaldehyde condensate sodium salt, 2% of fatty alcohol-polyoxyethylene ether, 0.15% of xanthan gum, 0.3% of organic silicon defoamer, 5% of propylene glycol and the balance of deionized water, the components are uniformly mixed, added into a sand mill and ground to a certain particle size, and subjected to high shear mixing to prepare the 40% pyraclostrobin-spirodiclofen suspending agent.
The prepared 40% oxazofen-spirodiclofen suspending agent is applied to prevention and treatment of citrus red spiders. The test site is the northern area of Ningbo city in Zhejiang province. The control effect of the 40% oxazoetoxyfen-spirodiclofen suspending agent on citrus red spiders 3 days, 14 days and 30 days after the pesticide is applied is 95.7%, 97.6% and 95.8% respectively under the dosage of 80mg/kg of active ingredients. The control medicament 20% oxaziclovir hydrochloride suspending agent has the control effects on citrus red spiders of 90.7%, 95.8% and 91.5% respectively in the dose of 80mg/kg of active ingredient after 3 days, 14 days and 30 days. The control medicament 240 g/l spirodiclofen suspending agent has the control effect on citrus red spiders for 3 days, 14 days and 30 days respectively of 50.3 percent, 75.6 percent and 68.2 percent under the dosage of 100mg/kg of active ingredients.
After the pyraclonil and the spirodiclofen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 4, 25% Azolofen-spirodiclofen suspension
According to the formula of 15% of oxazofen-acarine nitrile, 10% of spirodiclofen, 2% of hydroxyl-terminated ethylene oxide propylene oxide block polyether, 3% of maleic acid homopolymer sodium salt, 0.15% of xanthan gum, 0.3% of organic silicon defoamer, 5% of propylene glycol and the balance of deionized water, the components are uniformly mixed, added into a sand mill and ground to a certain particle size, and subjected to high-shear mixing and blending to prepare the 25% oxazofen-acarine nitrile-spirodiclofen suspending agent.
The prepared 25% oxazofen-spirodiclofen suspending agent is applied to cotton red spiders. The test site is Anyang city, Henan province. Under the dosage of 80mg/kg of effective components, the 25% oxadixyl-acaricidal suspension emulsion has the control effects on cotton red spiders of 97.2%, 99.5% and 98.8% respectively 3 days, 14 days and 30 days after application. The control medicament 20% oxaziclovir hydrochloride suspending agent has the control effects on cotton red spiders of 91.3%, 95.6% and 90.7% respectively in the dose of 80mg/kg of active ingredient after 3 days, 14 days and 30 days. The control medicament 240 g/l spirodiclofen suspending agent has the control effects on cotton red spiders of 51.3%, 73.5% and 74.7% respectively in the dose of 100mg/kg of active ingredients after 3 days, 14 days and 30 days.
After the pyraclonil and the spirodiclofen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 5, 20% Azolofen-spirodiclofen emulsifiable concentrate
According to a formula that 15% of oxazofen-acarbonitrile, 5% of spirodiclofen, 4% of calcium dodecyl benzene sulfonate, 15% of castor oil polyoxyethylene ether, 20% of methyl oleate and 100% of S-150# are supplemented, all the components are mixed and stirred to be transparent, and then the 20% oxazofen-acarbonitrile-spirodiclofen emulsifiable oil can be obtained.
The prepared 20% oxazofen-spirodiclofen emulsifiable concentrate is applied to controlling apple red spiders. The test site is Shandong province tobacco stage city. The 20% oxazoetoxynil-spirodiclofen emulsifiable concentrate has the control effects on apple red spiders of 95.7%, 98.3% and 97.8% respectively in the dosage of 80mg/kg of active ingredients and 3 days, 14 days and 30 days after application. The control medicament 20% oxaziclofen emulsifiable concentrate has the control effects on apple red spiders of 91.8%, 93.7% and 91.2% respectively in the dosage of 80mg/kg of active ingredients after 3 days, 14 days and 30 days. The control medicament 240 g/l spirodiclofen missible oil has the control effect on apple red spiders for 3 days, 14 days and 30 days respectively of 52.4 percent, 76.5 percent and 74.8 percent under the dosage of 100mg/kg of active ingredients.
After the pyraclonil and the spirodiclofen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 6, 35% Azolofen-Spiromesifen suspension
According to the formula of 20% of oxazofen-acarine nitrile, 15% of spiromesifen, 3.5% of acrylic acid homopolymer sodium salt, 1% of fatty alcohol-polyoxyethylene ether, 0.15% of xanthan gum, 0.3% of organic silicon defoamer, 5% of propylene glycol and the balance of deionized water, the components are uniformly mixed, ground in a sand mill to a certain particle size, and mixed by high shear to prepare the 35% oxazofen-spiromesifen suspending agent.
The prepared 35% oxazofen-spiromesifen suspending agent is applied to prevention and treatment of citrus red spiders. The test site is the northern area of Ningbo city in Zhejiang province. Under the condition that the effective component of the 35% oxazofen-acarbonitrile-spiromesifen suspending agent is 80mg/kg, the control effect on citrus red spiders is respectively 97.8%, 99.1% and 96.5% 3 days, 14 days and 30 days after the suspending agent is applied. The control medicament 20% oxaziclovir hydrochloride suspending agent has the control effects on citrus red spiders of 90.7%, 95.8% and 91.5% respectively in the dose of 80mg/kg of active ingredient after 3 days, 14 days and 30 days. The control medicament 24% spiromesifen suspending agent has the control effects on citrus red spiders of 51.2%, 73.5% and 72.8% respectively in the dose of 100mg/kg of active ingredients after 3 days, 14 days and 30 days.
After the pyraclonil and the spiromesifen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 7, 20% Oxazoletofenpyrronitrile spiromesifen emulsifiable concentrate
According to a formula of supplementing 10% of oxazofen, 10% of spiromesifen, 3% of calcium dodecyl benzene sulfonate, 15% of triphenylethyl phenol polyoxyethylene ether and S-150# to 100%, mixing and stirring the components until the components are transparent, and obtaining the 20% oxazofen-spiromesifen emulsifiable oil.
The prepared 20% oxazofen-spiromesifen emulsifiable concentrate is applied to controlling citrus red spiders. The test site is the northern area of Ningbo city in Zhejiang province. Under the dosage of 80mg/kg of effective components, the control effect of the 20% oxaziclorinil-spiromesifen emulsifiable concentrate on citrus red spiders in 3 days, 14 days and 30 days after application is 96.7%, 98.5% and 97.3% respectively. The control medicament 20% oxaziclofen emulsifiable concentrate has the control effects on citrus red spiders of 90.7%, 95.8% and 91.5% respectively in the dosage of 80mg/kg of active ingredients after 3 days, 14 days and 30 days. The control medicament, namely the 24% spiromesifen emulsifiable solution, has the control effects on citrus red spiders of 52.3%, 74.5% and 71.2% respectively in the dosage of 100mg/kg of active ingredients after 3 days, 14 days and 30 days.
After the pyraclonil and the spiromesifen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 8, 40% Azolofen-spirodiclofen suspension
According to the formula of 20% of pyraclostrobin, 20% of spirodiclofen, 4% of naphthalenesulfonic acid formaldehyde condensation product sodium salt, 2% of fatty alcohol-polyoxyethylene ether, 0.15% of xanthan gum, 0.3% of organic silicon defoamer, 5% of propylene glycol and the balance of deionized water, the components are uniformly mixed, added into a sand mill and ground to a certain particle size, and subjected to high shear mixing to prepare the 40% pyraclostrobin-spirodiclofen suspending agent.
The prepared 40% oxazoetoxyfen-spirodiclofen suspending agent is applied to prevention and treatment of strawberry red spiders. The test site is Shaoxing city in Zhejiang province. Under the condition that the effective component of the 40% oxazofen-acarbonitrile-spirodiclofen suspending agent is 80mg/kg, the control effect on citrus red spiders is respectively 94.8%, 96.7% and 95.0% 3 days, 14 days and 30 days after the suspending agent is applied. The control medicament 20% oxaziclovir hydrochloride suspending agent has the control effects on strawberry red spiders of 90.8%, 94.5% and 92.3% respectively in the dose of 80mg/kg of active ingredient after 3 days, 14 days and 30 days. The control medicament 240 g/l spirodiclofen suspending agent has the control effect on strawberry red spiders of 52.5 percent, 73.7 percent and 60.8 percent respectively in the dosage of 100mg/kg of active ingredient after 3 days, 14 days and 30 days.
After the pyraclonil and the spirodiclofen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 9, 20% Azolofen-spirodiclofen emulsifiable concentrate
According to a formula that 15% of oxazofen-acarbonitrile, 5% of spirodiclofen, 4% of calcium dodecyl benzene sulfonate, 15% of castor oil polyoxyethylene ether, 20% of methyl oleate and 100% of S-150# are supplemented, all the components are mixed and stirred to be transparent, and then the 20% oxazofen-acarbonitrile-spirodiclofen emulsifiable oil can be obtained.
The prepared 20% oxazofen-spirodiclofen emulsifiable concentrate is applied to control tetranychus viennensis. The test site is Taian city, Shandong province. The 20% oxadixyl-acaricidal nitrile-spirodiclofen emulsifiable concentrate has the control effects on tetranychus viennensis 3 days, 14 days and 30 days after application of 80mg/kg of active ingredients of 94.8%, 98.4% and 97.1% respectively. The control medicament 20% oxaziclofen emulsifiable concentrate has the control effects on the tetranychus viennensis 3 days, 14 days and 30 days after application of 90.9%, 94.0% and 91.5% respectively under the dosage of 80mg/kg of active ingredients. The control medicament 240 g/l spirodiclofen missible oil has the control effects on the tetranychus viennensis 3 days, 14 days and 30 days after the application of the medicament under the dosage of 100mg/kg of active ingredients of 58.2 percent, 73.5 percent and 70.8 percent respectively.
After the pyraclonil and the spirodiclofen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Example 10, 35% Azolorinil spiromesifen suspension
According to the formula of 20% of oxazofen-acarine nitrile, 15% of spiromesifen, 3.5% of acrylic acid homopolymer sodium salt, 1% of fatty alcohol-polyoxyethylene ether, 0.15% of xanthan gum, 0.3% of organic silicon defoamer, 5% of propylene glycol and the balance of deionized water, the components are uniformly mixed, added into a sand mill and ground to a certain particle size, and subjected to high-shear mixing and blending to prepare the 35% oxazofen-spiromesifen suspending agent.
The prepared 35% oxazofen-spiromesifen suspending agent is applied to prevention and control of tea tree yellow mites. The test site is Hangzhou city in Zhejiang province. Under the condition that the effective component is 80mg/kg, the 35% oxaziclorinil-spiromesifen suspending agent has the control effects on tea yellow mites of tea trees of 96.8%, 98.5% and 96.1% respectively 3 days, 14 days and 30 days after the application. The control medicament 20% oxaziclovir hydrochloride suspending agent has the control effects on tea yellow mites of 91.2%, 94.9% and 91.1% respectively in the dose of 80mg/kg of active ingredients and 3 days, 14 days and 30 days after the control medicament is applied. The control medicament 24% spiromesifen suspending agent has the control effects on tea yellow mites of tea trees of 55.6%, 75.3% and 73.1% respectively in the dosage of 100mg/kg of active ingredients after 3 days, 14 days and 30 days.
After the pyraclonil and the spiromesifen are compounded, the synergistic effect is obvious, and the quick-acting performance and the lasting period are obviously better than those of a contrast medicament.
Claims (10)
1. A composition characterized by: the composition contains the oxazofen and the spirocyclic tetronic acid pesticide, and the weight ratio of the oxazofen to the spirocyclic tetronic acid pesticide is 1-50: 50-1.
2. The composition of claim 1, wherein: the composition contains the oxazofen and the spirocyclic tetronic acid pesticide, and the weight ratio of the oxazofen to the spirocyclic tetronic acid pesticide is 1-30: 30-1.
3. The composition of claim 2, wherein: the composition contains the oxazofen and the spirocyclic tetronic acid pesticide, and the weight ratio of the oxazofen to the spirocyclic tetronic acid pesticide is 1-10: 10-1.
4. A composition according to claim 3, characterized in that: the composition contains the oxazofen and the spirocyclic tetronic acid pesticide, and the weight ratio of the oxazofen to the spirocyclic tetronic acid pesticide is 1-4: 4-1.
5. The composition of claim 1, wherein: the spirocyclic tetronic acid pesticide is at least one selected from spirodiclofen, spiromesifen, spirotetramat and spirodiclofen.
6. An acaricide characterized by: the acaricide comprises 1-90% of the composition as described in claim 1 by weight, and the balance of acceptable carriers and auxiliary agents in pesticide preparations.
7. An acaricide according to claim 6, characterized in that:
the acaricide comprises 5-40% of the composition as described in claim 1 by weight, and the balance of carriers and auxiliary agents acceptable in pesticide preparations.
8. An acaricide according to claim 6, characterized in that: the acaricide is missible oil, oil suspension, suspending agent, suspoemulsion, wettable powder, water dispersible granule, microcapsule suspending agent or aqueous emulsion.
9. Use of a composition according to claim 1, characterized in that the composition is used for controlling mites.
10. Use of a composition according to claim 9, characterized in that the mites to be controlled by the composition are selected from at least one of citrus red mite, tetranychus cinnabarinus, red spider apple mite, red cotton spider, red strawberry spider mite, tetranychus viennensis and yellow tea mite.
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| CN201910278315.5A CN111789122A (en) | 2019-04-09 | 2019-04-09 | Acaricidal composition containing oxapyrile-acarbonitrile and spirocyclic tetronic acid pesticide |
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| CN201910278315.5A Pending CN111789122A (en) | 2019-04-09 | 2019-04-09 | Acaricidal composition containing oxapyrile-acarbonitrile and spirocyclic tetronic acid pesticide |
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Cited By (1)
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| WO2024003905A1 (en) * | 2022-06-30 | 2024-01-04 | Adama Makhteshim Ltd. | Insecticide formulations with built-in adjuvants |
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