Persimmons usually have many white spots when they grow to maturity. In fact, persimmon trees suffer from the damage of persimmon scale insects. This kind of insect damage is very easy to happen on persimmon trees. It may happen several times a year. It has good concealment. It is not easy for people to find, and usually damages the fruits and leaves of persimmon trees. If there is no prevention and control in the early stage, it will become a white wax shell insect, which is more difficult to eliminate.
1. With the method of winter cutting, the branches damaged by diseases and insect pests, as well as the old tree bark, shall be cut off and cut off, and finally the larvae that have passed the winter shall be burned. In addition, the rest of the dried persimmon may also have larvae, but also to cut off in time.
2. Before germination, spray the trunk with Baume 5 degree sulfur mixture to kill the larvae.
3. Spray with insecticide or dichlorvos before the larvae become wax shells. If you have become a white wax shell insect, you should use wax Jieling spray to kill
4. If all insects come out of the shell, this is the most serious period of insect damage. The third generation is also the most difficult to treat. It is better to spray with dichlorvos or phoxim.
