Composition for preventing and controlling plant virus disease and application thereof

Abstract

The invention discloses a composition for preventing and controlling a plant virus disease and application thereof and relates to the technical field of pesticide compositions. Active components of the pesticide composition are a first active component iodine oligosaccharide acid and a second active component imidacloprid, thiamethoxam, clothianidin and nitenpyram or dinotefuran, and weight ratio of the first active component to the second active component is 1:(0.01-90). The invention also relates to a pesticide prepared from the pesticide composition and application of the pesticide in prevention and control of the plant virus disease. The pesticide composition has obvious prevention and control effects, also has obvious synergistic effect, can be used for preventing and controlling the virus disease of multiple plants such as rice, corn, wheat, cotton, peanut, tobacco, vegetables and flowers and can effectively improve health of crops.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a composition for preventing and treating plant virus diseases and its application in preventing and controlling plant virus diseases and effectively improving crop health. Background technique [0002] Agricultural diseases are mainly divided into fungi, bacteria and viruses. Plant viruses are second only to fungi as pathogens. It is an entity that contains infectious nucleic acid and is covered with a protein shell, and is characterized by the ability to infect host cells and cause disease through infection. There are more than 1,000 kinds of plant viruses, which are mainly transmitted through biological media such as insects. Therefore, the occurrence, prevalence and distribution of diseases in the field are often closely related to the spreading insects. Plant virus disease is a kind of plant disease with serious harm at present. It is known as the "cancer" of crops and has caus...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no effective control method for plant virus diseases. The commonly used method is to spray pesticides separately when pests or diseases break out. Due to the poor control effect, repeated application of pesticides is required, resulting in large losses.

In this process, due to the high frequency of pesticide application, on the one hand, a lot of manpower, material resources and financial resources are wasted, on the other hand, the resistance of crop pests and diseases is enhanced; at the same time, the difficulty of pest control is increased.

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