Method for preventing watermelon fruits from pesticide pollution and diseases and pest damage

Abstract

The invention provides a method for preventing watermelon fruits from pesticide pollution and disease and pest damage. High temperature and high humidity weather in a greenhouse are easy to induce the disease and pest damage of watermelons, and the normal control method is to spray pesticides. With the increasing of use frequency of the pesticides, the pesticide application quantity is increased, the pesticides remained on the fruits are continuously increased, so that the edible safety of the watermelons in the market is becoming more dubious. The invention provides a method for preventing the watermelon fruits from the pesticide pollution and the disease and pest damage, the problem that the watermelon fruits are easy to be polluted by the sprayed pesticides is solved by uniformly spraying polyvinyl alcohol solution on the withered watermelon fruits at one step, and moreover, the damage of various bacteria and pests suffered by the watermelon fruits during expanding can be prevented; the pesticide application quantity is reduced, and beneficial conditions for producing high-quality and nuisanceless watermelons are created.

Description

Technical field [0001] The invention belongs to the technical field of watermelon cultivation, and particularly relates to a method for preventing watermelon fruit from pesticide pollution and pests. Background technique [0002] Watermelon, also known as water melon, winter melon and summer melon, is the fruit of the cucurbitaceous plant watermelon. It was called "watermelon" because it was introduced from the Western Regions in the Han Dynasty. The melon is round or oval, and the skin color is dark green, green, white or green with snake patterns. The flesh is red, light red, yellow or white, sweet and juicy, refreshing and thirst-quenching, it is the best fruit in midsummer. Watermelon is called "the king of melons". In addition to containing no fat and cholesterol, it contains a lot of glucose, malic acid, fructose, protein amino acids, lycopene and rich vitamin C. It is a nutritious, pure, and safe to eat. Food. In recent years, with the rise of off-season watermelon cult...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preventing watermelon fruit from being polluted by pesticides and infested by diseases and insect pests, so as to solve the problem that watermelon fruits are easily polluted by spraying pesticides and infested by various diseases and insect pests during the expansion period