Method for preventing and curing grape scale insects

Abstract

The invention discloses a method for preventing and curing grape scale insects, the method comprises the steps that during winter pruning, the trunk and the aged raised skin are subjected to skin scrapping with a clean skin scraper, dry branches and fallen leaves are cleared and old skin is stripped, overwintering egg mass is brushed away, and centralized burning is performed; then a whitening agent containing methidathion is used for whitening the trunk so as to clear and kill orchard germs and worm eggs and reduce the next year disease and insect cardinal numbers; before the beginning of spring, insect glue is smeared to the trunk, and a closed glue ring with the width of 3-5 cm is smeared on the trunk to prevent overwintering insects to climb the tree; lime sulphur with 3-5 baume degreeis sprayed in the whole orchard in the spring grape pompon period; a 24% of spirotetramat 5,000 times solution or 40% of chlorpyrifos 1,500 times solution is sprayed to the whole plant in the last ten-day of May. With the adoption of the method, the scale insects can be basically killed thoroughly and can be effectively prevented from climbing to the tree to damage the grape, the pesticide is sprayed in last ten-day of May and washed or degraded clean before the grape is mature, and the pesticide residue doesn't exceed the standard.

Description

technical field [0001] The invention relates to a method for preventing and controlling insect diseases in grape cultivation, in particular to a method for preventing and controlling grape scale insects. Background technique [0002] my country is one of the birthplaces and main planting places of grapes in the world. By 2017, my country's grape cultivation area reached more than 13 million mu. Except for Hong Kong and Macao, which have no grape cultivation, other provinces and regions have different planting areas. In my country, scale insects have suitable climatic conditions and abundant host plants, and grapes are one of the main hosts of scale insects. Scale insects harm grapes, resulting in weak tree vigor, poor tree development, early leaf and fruit drop, low sugar content in fruit, poor appearance, reduced yield or even no harvest. The occurrence and prevalence of scale insects have a great impact on the grape industry in my country, and they pose a great potential ...

AI Technical Summary

Problems solved by technology

[0004] The current method of killing scale insects is to spray pesticides with chlorpyrifos as the main raw material multiple times. Extensive use of pesticides will cause pesticide residues on grape fruits, and spraying pesticides can only eliminate scale insects on the surface. It is impossible to kill all the insects inside or in the gaps of the fruit balls, which often leads to the reappearance of scale insects and cannot be cured