Triazolone-containing pesticide composition for preventing and treating wheat gibberellic diseases and application thereof

Abstract

The invention relates to a triazolone-containing pesticide composition for preventing and treating wheat gibberellic diseases. In each Mu, 1-100 parts of validamycin by weight and 1-80 parts of triazolone by weight are used. The pesticide composition provided by the invention has an obvious synergistic effect of preventing and treating the wheat gibberellic diseases, the effect of preventing and controlling the gibberellic diseases can be remarkably improved, and the capability of manually preventing and controlling the wheat crop gibberellic diseases is improved; the pollution level of grain DON toxins is remarkably reduced; the drug use amount is reduced, the cost is reduced, and the environmental pollution and pesticide residues are reduced; the drug resistance to the triazolone by wheat pathogenic fungi is delayed and the wheat gibberellic diseases are prevented and controlled; the lasting period of the validamycin is prolonged, the drug use frequency is reduced and the triazolone-containing pesticide composition can be used for treating wheat powdery mildew, rust diseases, leaf blight and banded sclerotial blight, and the manual cost of using pesticides is reduced; and the dosage of chemical pesticides is greatly reduced and the triazolone-containing pesticide composition is environmentally friendly.

Description

【Technical field】 [0001] The invention belongs to the technical field of pesticides. More specifically, the present invention relates to a pesticide composition for controlling wheat scab, and also relates to an agricultural fungicide for preventing and controlling wheat scab. 【Background technique】 [0002] 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 (Trichothecenes, DON) and zearalenone (Zearalenon), which seriously affects the quality of food such as fermentation and wine making, and e...

AI Technical Summary

Problems solved by technology

[0008] 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

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