Method for preventing pseudococcus comstocki in orchard

Abstract

The invention discloses a method for preventing pseudococcus comstocki in an orchard. In 1-4 months before fruit harvesting in the orchard, seeds of over-wintering green manure plants having main roots are sown between fruit tree rows, overground parts of interplanted plants are harvested before the sprouting of fruit trees in the second year and are turned and buried into soil on the spot, roots of the pseudococcus comstocki are collected and burned down, and thus the pseudococcus comstocki is removed. The over-wintering green manure plants having the main roots are at least one of astragalus sinicus, broad bean and limpia evening primrose. The preventing method has a good effect of luring and gathering pseudococcus comstocki overwintering in branch and trunk peeling off cracks, the physical deinsectization effect is obvious, the method serves multiple purposes, and the shortcomings of a chemical prevention method can be effectively overcome. The method is simple and practical, green, environmentally friendly and free of pollution, is an important technical means for producing organic fruits and has extensive development prospect.

Description

technical field [0001] The invention belongs to the technical field of mealybug prevention and control, and in particular relates to a method for preventing and treating mealybug in an orchard. Background technique [0002] P. konshii is an omnivorous pest with piercing-sucking mouthparts. It likes to move in a hidden and humid environment. It has strong adaptability and a wide distribution range. It is harmful from the north to the south. The nymphs and female adults suck the juice of young shoots, young leaves, fruits, twigs and plant roots, and often harm persimmons, pears, peaches, plums, apricots, apples, hawthorns, chestnuts, walnuts, plums, dates, and pomegranates on fruit trees , grapes and other fruits. In recent years, due to the promotion of fruit bagging cultivation, a dark and humid environment has been created for P. konshii, which makes the control of P. konii more difficult. For areas with a warm climate in four seasons, the damage of mealybug can occur for...

AI Technical Summary

Problems solved by technology

Although the above methods are also effective, P. kangshii generally produces about 3 generations a year in the cold northern regions. After winter, P. kangshii finds a relatively warm place (such as a special insect trap tied to the trunk of a fruit tree). belt, straw or plastic) enters the dormancy period, so as to achieve the effect of trapping, so this method is only suitable for areas with distinct seasons and colder winters

In some places, the climate does not change significantly in four seasons, and the winter is not cold. P. konshii can reproduce about 6 generations per year. After the fruit is harvested and the leaves of the fruit trees are fallen, the konshii mealybug will continue to move. If there is no object to suck, It will move around, and the warm climate often allows the mealybugs to disperse in the saw cuts of fruit trees, cracks in warped skins, leeward parts of branches, rhizomes, bud eyes, etc., and they can survive the winter normally, thus greatly reducing the The trapping rate of mealybug konshii increases the difficulty of control