Epoxiconazole-containing pesticide composition used for preventing and treating wheat head blight and application thereof

Abstract

The invention relates to a pesticide composition used for preventing and treating wheat head blight. The pesticide composition is prepared from the following components in parts by weight: 1-150 parts of validamycin and 1-20 parts of epoxiconazole. The pesticide composition provided by the invention has a remarkable synergistic effect when used for preventing and treating wheat head blight, the effect of preventing and treating head blight can be remarkably improved, and the capability of preventing and controlling wheat head blight of human beings is improved; the pollution level of DON toxins of grains is remarkably reduced, the chemical consumption is reduced, the cost is reduced, the environmental pollution and the pesticide residue are reduced, the pesticide resistance on epoxiconazole of wheat pathogenic fungi is delayed, and wheat head blight is prevented and treated; the lasting period of validamycin is prolonged, the frequency of pesticide application is reduced, wheat powdery mildew, rust disease, leaf blight and banded sclerotial blight can also be treated, the use cost of pesticides is reduced, the use dosage of chemical pesticides is greatly reduced and the epoxiconazole-containing pesticide composition is environmentally friendly.

Description

[0001] The present invention takes the priority of the Chinese invention patent application CN201610244423.7 submitted on April 19, 2016. 【Technical field】 [0002] The invention belongs to the technical field of pesticides. More specifically, the present invention relates to a pesticide composition for preventing and treating wheat head blight, and also relates to the use of the pesticide composition. 【Background technique】 [0003] Wheat and barley are the most important cultivated cereal crops in the world and one of the main food crops in China. Cereal crops are often threatened by fungal diseases such as scab, powdery mildew, sheath blight, rust and leaf blight. These diseases occur in the cereal growing areas of the world, seriously affecting the yield and quality of cereal agricultural products, especially the wheat head blight caused by Fusarium can not only cause devastating yield loss, but also in infected grains Produces toxins such as deoxynivalenol (Trichothec...

AI Technical Summary

Problems solved by technology

[0009] With the long-term and extensive use of these selective fungicides with a single mechanism of action, drug resistance has emerged in the natural pathogenic fungal population, and the use effect has declined year by year

Through nearly 30 years of drug resistance monitoring, the inventor found that Fusarium fungi resistant to carbendazim and other benzimidazole fungicides in East China have formed a dominant group, and commonly used benzimidazoles such as carbendazim and thiophanate Fungicides have basically lost their value in the control of wheat head blight

At the same time, because the ability of drug-resistant bacteria to produce DON toxin is more than 5 times that of sensitive strains, it has increasingly aggravated the harm of wheat head blight and the risk of food safety in China.

In order to reduce yield loss, farmers often double the use of fungicides such as carbendazim, which further exacerbates resistance, pesticide residues, environmental pollution and food safety problems

Images