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Fipronil and etofenpronx mixed pesticide

A technology of fipronprofen and promethrin, which is applied in the field of compound insecticides, can solve the problem of high cost, achieve the effect of reducing the dosage and slowing down the resistance of pests

Inactive Publication Date: 2007-04-25
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a compound insecticidal agent of fipronil and ethofenprox in view of the fact that the cost of using fipronil and ethofenprox alone in controlling pests is relatively high and the pests are prone to resistance after repeated use. agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation of 5% fipronil · etofenproxil emulsifiable concentrate (active drug ingredient weight ratio 1: 1):

[0015] Auxiliary selection: DMF, Nongru 0206, Nongru 2201. Solvent of choice: toluene.

[0016] Each component is prepared according to weight percentage:

[0017] Fipronil: 2.5%; Etoproxil: 2.5%; DMF 5%; Nongru 1205: 5%; Nongru 0206: 5%; Solvent: toluene, appropriate amount.

[0018] Preparation process: Dissolve fipronil with acetone, then add etofenproxil, DMF, Nongru 1205, and Nongru 0206 in sequence, then fill it with toluene to 100%, mix the above mixture in a volumetric flask evenly to obtain fipronil. Etofenprox EC.

Embodiment 2

[0020] Preparation of 10% fipronil-etofenprox aqueous suspension (active drug ingredient weight ratio 2:3):

[0021] Auxiliary selection: sodium lignosulfonate, OP-10; CMC; organosilicone; ethylene glycol.

[0022] Solvent of choice: water.

[0023] Each component is prepared according to weight percentage:

[0024] Fipronil: 4.0%; Etoproxil: 6.0%; Sodium Lignosulfonate: 9.0%; OP-10: 4.0%; Thickener CMC: 1.0%; Defoamer Silicone: 0.01%; Antifreeze Ethylene glycol: 5.5%; water: appropriate amount.

[0025] Preparation process: put fipronil, etofenproxil, sodium lignosulfonate, OP-10, thickener CMC, defoamer organic silicone, antifreeze ethylene glycol in the reaction kettle according to the above ratio, add water Mix evenly until 100%, and then introduce the mixture into a sand mill to grind until the material fineness is 1-5 μm; after grinding, mix evenly to form a water suspension.

Embodiment 3

[0027] Insects to be tested: Chilo borer eggs collected from Gaochun County, Nanjing City, Jiangsu Province were used, and 1-order-old Ant borers were raised indoors.

[0028] Drug to be tested: 5% fipronil-etoproxil EC provided by Example 1, the active pharmaceutical ingredients fipronil is 2.5%, and etofenprox is 2.5% (the weight ratio of active pharmaceutical ingredients is 1:1);

[0029] Comparative drugs: 5% fipronil EC (prepared by self); 5% Etoproxil EC (prepared by self).

[0030] Indoor synergistic bioassay: Weigh a certain amount of fipronil and etofenprox original drugs, dissolve them in acetone, then add additives and solvents and mix well, and prepare a single dose of 5% fipronil emulsifiable concentrate and 5% ether Pyrethrin emulsifiable oil (the active pharmaceutical ingredient in the single dose is 5%, the same below). The two single doses and the 5% fipronil-ethofenprox EC provided in Example 1 were respectively diluted with water to form a series of concent...

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PUM

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Abstract

The invention relates to a composite Fipronil and Ethofenprox insecticide comprising effective active constituents, auxiliary agent and solvent, wherein the effective active constituents include Fipronil and Ethofenprox by the weight ratio of 1-20 : 1-40. The insecticide can be used for controlling Chilo supperssalis, Laodelphax srtiatellus, Nilaparvata lugens, Sogatella furcifera and Cnaphalocrocis medinalis Guenee.

Description

Technical field: [0001] The invention belongs to pesticides for preventing and controlling agricultural pests, and relates to a compound insecticide whose active ingredients are fipronil and etofenprox. Background technique: [0002] Rice is the most important food crop in my country, and more than 65% of the population in the country takes rice as a staple food. The average annual sown area of ​​rice accounts for about 35% of the national grain crop sown area. Whether the rice harvest is good or not is largely restricting the trend of my country's grain market and the situation of food security. Rice diseases and insect pests are important factors affecting rice production in my country. In recent years, their occurrence and damage have been increasing. The annual occurrence area exceeds 66.67 million hectares, and the loss rate is as high as 10%-30%. In the integrated control of rice pests and diseases, chemical agents are still an important method for the control of ric...

Claims

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Application Information

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IPC IPC(8): A01N53/06A01P7/04A01N47/42
Inventor 张心明刘贤金王冬兰余向阳
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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