How to control the heart borer of plum tree when the yield of plum products is low?

Plum trees are attacked by heart-eating insects, light ones affect the development of plum trees, poor quality and low yield of plums. The heavy tree is weak and the life span is short, and the plum is inedible. So how to control the heart borer of plum tree?

Plum tree

1. Cultivate soil at the base of the trunk. In the middle and last ten days of May, before the emergence of the adults of the overwintering generation, the plum trees were cultivated on a 10cm thick mound, so that the emergence of adults could not be unearthed.

2. Applying pesticide on the ground. Spray 75% phoxim EC 0.5 kg / mu, or 40% dimethoate 500 times liquid on the tree plate before overwintering adult Eclosion after plum falling flowers, rake evenly after spraying, so that the medicine and soil are mixed to improve the insecticidal effect. Before the physiological fruit drop of plums, the soil under the crown was sprayed with 1000-1500 times of phoxim EC for ground control.

3. At the end of falling flowers, the plum can be sprayed for the first time when there is a grain of wheat. It can be sprayed every 7-10 days with dichlorvos, enemy killing, quick killing and Laifuling, and the effect is very good.

4. Biological control, soil treatment under the crown of plum branches, such as Beauveria bassiana, or putting chickens in plum orchards.

5. Keep the plum orchard hygienic, sweep away the fallen fruit of plums, and reduce the source of insects in the second year.