Compound bactericide containing metconazole and chitosan composition

Abstract

The present invention discloses a compound bactericide containing a metconazole and chitosan composition. The compound bactericide is characterized by comprising an active component A and an active component B, wherein the active component A is metconazole, the active component B is a plant elicitor chitosan, and a weight part ratio of the active component A to the active component B is 1-20:20-1. According to the present invention, the compound bactericide can induce the resistance of wheat plants on Gibberella infection and can prevent and control wheat gibberellic disease, wherein the disease prevention action mechanism is novel, and the action sites are more; and with the compound bactericide, the drug resistance of Gibberella on carbendazim and the drug resistance of powdery mildew on triazole can be treated, the Gibberella spore infection, germination and growth can be effectively controlled, the comprehensive prevention and control effect of the field is 85%, the combination of quick effect and lasting effect is provided, the wheat yield can be increased and the wheat quality can be improved, the chemical pesticide consumption can be reduced, the pesticide residues on crops are reduced, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a pesticide composition capable of efficiently and comprehensively preventing and controlling wheat diseases, especially wheat scab, in particular a compound fungicide containing metconazole and chitosan. Background technique [0002] Wheat scab is an important disease in wheat production in my country, seriously affecting the yield and quality of wheat. The spores of the pathogen mainly infect and germinate during the heading and flowering stage of wheat. Under suitable conditions, the mycelium of the pathogen grows to produce a large number of spores and toxins, and the time for the pathogen to harm and grow is as long as 45 to 50 days. [0003] The prevention and control of wheat head blight is mainly through active attack and prevention-oriented control strategy, spraying pesticide protection during the flowering stage of wheat, inhibiting the germination of spore fungus or inhibiting the normal growth of fungal hyphae. At...

AI Technical Summary

Problems solved by technology

Due to the nearly 45-50 days from the application of pesticides at the wheat flowering stage to the harvesting of wheat, as long as the field temperature and humidity conditions are suitable, the disease will be prevalent. However, it is difficult to reach 30 days for the residual effect period and control period of the current pesticides.

Currently commonly used control agents, although the control is good in the early stage, if there is continuous high temperature and rain in the later stage, it will still cause a rapid increase in disease spikes and disease levels