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Efficient compound acaricide

A technology of acaricide and adjuvant, applied in the field of compound acaricide, can solve the problems of high cost, weakened pest activity, large amount of pesticides for pest mite control, etc., achieves convenient storage and use, reduced use concentration, superior The effect of the acaricidal effect

Inactive Publication Date: 2014-10-08
云南省农业科学院蚕桑蜜蜂研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cause cell synthesis to stop life function due to lack of energy, after spraying the pest activity becomes weak, spots appear, color changes, activity stops, coma, paralysis, and eventually death, but the price is more expensive and the cost is higher
[0006] However, the long-term use of diafenthiuron, fenbutatin or chlorfenapyr for the prevention and control has increased the resistance of pest mites, resulting in large amounts of pesticides, high costs, poor effects, and serious environmental pollution.

Method used

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  • Efficient compound acaricide
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The mensuration of embodiment 1 diafenthiuron, fenbutatin and chlorfenapyr co-degree coefficient

[0026] In the present invention, the slide dipping method recommended by FAO is used to measure the joint toxicity of diafenthiuron, phenbutyltin, and chlorfenapyr mixture to Tetranychus cinnabarinus, and the joint toxicity of the mixture is calculated by using Sun Yunpei's method, that is, toxicity index calculation The method to calculate the co-degree coefficient, the co-degree coefficient is significantly greater than 100 is a synergistic effect, close to 100 is an additive effect, and significantly less than 100 is an antagonistic effect. The co-degree coefficients of different proportions are shown in Table 1.

[0027] Table 1 Determination results of co-degree coefficients of diafenthiuron, fenbutatin and chlorfenapyr

[0028]

[0029] Note: relative toxicity RT1 = diafenthiuron LC 50 / mixture LC 50 ; relative toxicity RT2 = phenbutyltin LC 50 / mixture LC 50...

Embodiment 2

[0032] Mix 1% diafenthiuron, 5% fenbutatin and 40% chlorfenapyr as the original drug, dissolve the original drug with 15% ethanol, 10% toluene and 5% n-butanol, and add 5% pesticide Milk 1602, 5% fatty alcohol polyoxyethylene ether, 5% NP-10, 8% propylene glycol, 1% sodium hydroxymethyl starch, 1% sodium carboxymethyl cellulose, tap water to make up 100%, stirring with high-speed shear Disperse evenly. Prepare 1% diafenthiuron, 5% fenbutatin and 40% chlorfenapyr compound aqueous emulsion.

Embodiment 3

[0034] Mix 5% diafenthiuron, 5% fenbutatin and 20% chlorfenapyr as the original drug, with 5% ethyl acetate, 10% chloroform, 10% cyclohexanone, 5% isopropanol, 15% Dissolve the original drug in n-amyl alcohol, add 5% fatty acid polyethylene glycol ester, 5% sodium lauryl sulfate, 2% glycerin, 5% carboxymethyl cellulose sodium salt to the original drug dissolution, and distilled water to make up 100%. Stir with a high-speed shear to disperse evenly. Prepare 5% diafenthiuron, 5% fenbutatin and 20% chlorfenapyr compound aqueous emulsion.

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Abstract

The invention discloses a compound acaricide. The compound acaricide is prepared from 1wt%-5wt% of diafenthiuron, 1wt%-60wt% of fenbutatin oxide, 1wt%-40wt% of chlorfenapyr and the balance being auxiliaries. According to a large number of experimental research screening, diafenthiuron, fenbutatin oxide and chlorfenapyr of the compound acaricide are compounded in a specific mass ratio to achieve the synergistic interaction effect; under the same dosage, the compounded acaricide has an anti-mite effect superior to that of single diafenthiuron or single fenbutatin oxide, the use concentration of the compound acaricide can be greatly reduced, the cost is low, the environment pollution is small, and especially, the drug resistance of mites can be effectively delayed. The compound acaricide has obvious synergism on phytophagous mites such as tetrangychus cinnabarinus and tetranychus urticae koch, is high in security to silkworms and can be used for preventing and controlling mites of a mulberry field, and has important economic value and social value.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a pesticide preparation with diafenthiuron, fenbutyltin and chlorfenapyr as main active ingredients, which is highly safe to silkworms and has significant effects on agricultural pest mites such as Tetranychus cinnabarinus and Tetranychus urticae. A compound acaricide with control effect. Background technique [0002] Herbivorous pest mites have become one of the most difficult pests to control due to their short reproductive cycle, small size, fast growth, strong fecundity, and easy resistance to pesticides. Long-term chemical control has increased the resistance of pest mites, resulting in large amounts of pesticides, high costs, poor effects, and serious environmental pollution. The development of new acaricides has attracted much attention. [0003] Diafenthiuron [1-tert-butyl-3-(2,6-diisopropyl-4-phenoxyphenyl) thiourea], whose trade names are difenuron and Baolu, is a new chemica...

Claims

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Application Information

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IPC IPC(8): A01N55/04A01P7/02A01N47/30A01N43/36
Inventor 杨振国罗雁婕谢道燕柴建萍倪婧黄平江秀均达爱斯
Owner 云南省农业科学院蚕桑蜜蜂研究所
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