Pesticide composition resisting plant virus diseases and preparation method and application thereof

Abstract

The invention discloses a pesticide composition resisting plant viral diseases and application thereof. The composition is prepared from, by weight, 0.0001-1 wt% of a brassinolide compound, 0.1-30 wt%of a polysaccharide compound and 0.1-30 wt% of functional additives. Accordingly, the effect of resisting plant virus diseases is greatly improved, and crop diseases are reduced; the main ingredientsare biological pesticides, and the formed compound preparation is free of environmental risk, the effect of resisting plant diseases, especially virus diseases is significant, the applicable crop range is wide, the prevention and treatment effects are good, the dosage can be lowered, and production can be ensured to the maximum limit.

Description

technical field [0001] The invention relates to the technical field of compound medicaments against plant virus diseases, in particular to a pesticide composition against plant virus diseases and its application. Background technique [0002] Pesticide refers to a general term for a class of drugs used to kill insects, sterilize bacteria or eliminate weeds in order to ensure and promote the growth of plants and crops in agricultural production. [0003] Plant virus diseases are known as plant "cancer". At present, there are 909 kinds of plant viruses in the world, and more than 100 kinds have been reported in my country. Most of the economic crops are affected by virus diseases, which make some or all of the plants grow abnormally and seriously Hinder plant growth, affect quality, reduce yield, common symptoms are wilting, mottled and rot. There are many types of plant virus diseases, which are harmful and difficult to control. [0004] The existing medicines used to treat ...

AI Technical Summary

Problems solved by technology

[0003] Plant virus diseases are known as plant "cancer". At present, there are 909 kinds of plant viruses in the world, and more than 100 kinds have been reported in my country. Most of the economic crops are affected by virus diseases, which make some or all of the plants grow abnormally and seriously Hinders plant growth, affects quality, reduces yield, common symptoms are wilting, mottled and rot

There are many types of plant virus diseases, which are widely harmful and difficult to control

[0004] The existing medicines used to treat plant virus diseases are all unsatisfactory, mainly including the following reasons: 1. The mutation speed of virus diseases is fast. We know that viruses have a simple structure and extremely fast replication speed, which leads to drug resistance The chances of the emergence of viruses are greatly increased. For example, copper acetate, a virus drug that was used on tobacco with good effect in the past few years, has been used for several years, and now the effect has dropped significantly.

2. The continuous invasion of foreign new viral diseases, through imported seeds, seedlings, etc. lead to the invasion of foreign new viruses, and the existing plant products for the prevention and treatment of viral diseases cannot be cured, leading to a large outbreak of viral diseases, such as tomato yellow flowers in previous years Leaf Curl Virus is still a devastating disaster to my country's tomato production

[0008] The existing patent technology content has not yet found the use of brassinolide compounds and polysaccharide compounds (fibromodulin, algal polysaccharide, chitosan), functional additives (glycosaminopeptide, ε-polysaccharide The multiple antiviral composition of lysine and phytosulfopeptine-α) induces plant immunity, can make full use of the plant's own defense ability, reduces the use of chemical pesticides and the risk of drug resistance, and protects the ecological environment

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