An agricultural chemical composition for preventing strong pesticide resistance

Abstract

The invention discloses compound pesticide for preventing strong drug-resistant mulberry moth, and is prepared with 80 percent of dichlovos, 50 percent of phoxim, surfactant and water in the weight proportions of 1:0.8-1.2:0.8-1.2:1500-2500. The compound pesticide can be sprayed on the surface of mulberry leaves for 45-55 kg per 667 square meters (mu), and the mulberry leaves can be picked off for feeding silkworms in 5-7 days after the spray. The invention and another technical proposal that the compound pesticide is prepared into with 40 percent of methomyl, 50 percent of phoxim, surfactant and water in the weight proportion of 1:0.8-1.2:0.8-1.2:1500-2500. Thus the compound pesticide can be sprayed on the surface of the mulberry leaves for 45-55 kg per 667 square meters (mu), and the mulberry leaves can be picked off for feeding silkworms in 10-12 days after the spray. The invention has simple preparation, broad material source, low price, low toxicity, low residual, no pollution, and convenient usage; can be sprayed on the surface of the mulberry leaves, and the leaves can be picked off for feeding silkworms after a plurality of days. Experiments prove that the preventing effect of the invention can reach above 95 percent, and satisfied prevention effects are obtained after the invention is applied to about 30 hectare mulberry gardens.

Description

technical field [0001] The patent of the present invention relates to a compound pesticide, in particular to a compound pesticide for preventing and controlling the highly resistant mulberry borer. Background technique [0002] With the use of highly toxic pesticides and changes in environmental conditions, the resistance of the mulberry borer has changed, and the traditional control methods have been unable to effectively control its damage. In recent years, there have been reports of "the outbreak of mulberry borer causing damage to silkworms without mulberry leaves" all over the country. Currently available on the market, the commonly used chemical pesticides used to prevent and control mulberry pests, such as 1500 times 80% didiene and 1500 times 50% phoxim, etc., have a single effect and only have a control effect of about 30-70%. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a raw material w...

AI Technical Summary

Problems solved by technology

Commonly used chemical pesticides that can be purchased in the market to prevent and control mulberry pests, such as 1500 times of 80% didiene and 1500 times of 50% phoxim, etc., have single efficacy and only have a control effect of about 30-70%.