A kind of medicinal composition of grape bagging pre-treatment

Abstract

The invention provides a pesticide composition for bagging pre-treatment of grapes. The pesticide composition is prepared from the following raw materials in parts by mass: pyraclostrobin, fludioxonil, potassium humate and chitosan in a mass ratio of (1-25) to (1-25) to 5 to 5. The pesticide composition for the bagging pre-treatment of the grapes, provided by the invention, is mainly used for preventing and treating anthracnose, botrytis and downy mildew of the grapes, has no problem of cross resistance, can be used for delaying the occurrence and development of the pesticide resistance of pathogens, and has a long persistent period and remarkable fungicidal effect; and the use amount of pesticides can be reduced, the pesticide utilization cost is reduced, and damages and pollution caused by the pesticides to the ecological environment are reduced; and meanwhile, a plurality of effects can be reached by utilizing the pesticide composition for one time and the labor intensity is also alleviated.

Description

technical field [0001] The invention relates to a medicament composition, in particular to a medicament composition for grape bagging pretreatment. Background technique [0002] Fruit bagging is a new technology promoted in production in recent years. Grapes are a kind of high-value and high-quality fruit that are easily attacked by various diseases and insect pests. Through bagging, the fruit ears can be directly protected from various diseases, insects, birds, Rats can avoid the pollution of air dust, harmful substances and chemical pesticides, and improve the yield and quality of grapes; it can also reduce the frequency and amount of pesticide application in vineyards, thereby reducing pesticide residues and reducing pollution to fruits and the environment , to reduce the chances of fruit growers to be exposed to pesticides. [0003] At present, many vineyards still suffer from large-scale diseases, especially grape anthracnose and botrytis cinerea, due to the frequency ...

AI Technical Summary

Problems solved by technology

[0003] At present, many vineyards still suffer from large-scale diseases, especially grape anthracnose and botrytis cinerea, due to the frequency of application of pesticides, large dosage of pesticides, poor persistence, unsatisfactory control effect, and cumbersome and complicated operations in the pre-treatment of grape bagging. , mildew and frost disease occurred, spread, caused serious losses, and increased year by year, becoming a major obstacle to production

For example, the prior art CN201410523017.5 discloses a pollution-free cultivation technology for grapes. Before bagging, the invention should treat the fruit ears with chemicals, once every 10 days, twice in total, and use 70% thiophanate-methyl 1000 for the first time. For the second time, use 80% spray 8000 times solution + 40% pyrimethanil 1200 times solution to spray fruit ears, which is easy to produce drug resistance, and the effect is not as good as one year after spraying. It not only affects the appearance of the product, but also has a lot of drug residues and cumbersome operation

Also adopt following 7 kinds of fungicides in the prior art: (1) 25% Dilito 1000 times liquid (Switzerland Novartis) adds 40% Fuxing 6000 times liquid (U.S. DuPont); (2) 25% Dinito 1000 times liquid Doubling liquid plus 2000 times liquid of suppressing fast net (U.S. DuPont); (3) 1000 times liquid of 45.5% propamidine (Israel Maxim Chemical Company) plus 40% Fuxing 6000 times liquid; (4) 2000 times liquid of suppressing fast net (5) 50% Shi Baogong 800 times liquid (Germany Aigerfort Company) plus 25% chlorothalonil (Japan Soda Co., Ltd.); (6) 45% Shi Baoke 800 times liquid (Germany Egger Fu company) plus 70% thiophanate-methyl 800 times solution (Nippon Soda Co., Ltd.); (7) 70% thiophanate-methyl 800 times solution plus 75% chlorothalonil 800 times solution; period, 20 days before fruit picking, and 10 days before fruit picking. The above fungicides are all solutions for the control of grape anthracnose and white rot, which are difficult to control. times, the number of spraying is many, the dosage is large, and the operation is cumbersome and complicated. At the same time, the rate of diseased fruit after bagging for 30 days is at least 0.42%, and the highest can reach 24.01%. The persistent effect of the medicine is not good.

Therefore, how to choose a good drug for grape bagging is particularly critical, and there is no report on the mixing and application of pyraclostrobin and fludioxonil.

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