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Biological characteristics and control strategies of Exoplectria pseudoacacia

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Acacia exocellata. It is distributed in Robinia pseudoacacia forest areas of Anyang, Puyang, Xinxiang, Kaifeng City and other ancient Yellow River channels in Henan Province. It mainly harms Robinia pseudoacacia. In large occurrence years, it can harm jujube trees and crops. This insect has gluttony and can eat all the leaves of pruning and whole trees in a short time. In high temperature and drought years, the leaves can be eaten up 2~3 times a year, causing the upper part of the tree to die, sprouting from the middle and lower parts of the trunk, causing serious harm to the growth of the tree. Prevention and control methods: (1) construction

Robinia pseudoacacia Spodoptera litura. It is distributed in the Robinia pseudoacacia forest areas of Anyang, Puyang, Xinxiang and Kaifeng, Henan Province. It mainly harms Robinia pseudoacacia, and can harm jujube trees and crops in large occurrence years. The insect can eat light on the whole branches and leaves in a short time. In the year of high temperature and drought, the leaves can be eaten up 2 or 3 times a year, causing the upper part of the tree to die and sprouting from the middle and lower part of the trunk, causing serious harm to the growth of the tree.

Prevention and control methods:

(1) to build a mixed forest. The mixed forest of poplar and Robinia pseudoacacia in Anyang City has not been affected in recent years, but the others are all affected, so the construction of mixed forest is the fundamental way to control Robinia pseudoacacia.

(2) protect natural enemies and create a good ecological environment. Building a bird's nest, protecting and attracting natural enemies, and introducing insect viruses are all economical and effective control methods, which can achieve twice the result with half the effort:

(3) physical control. Artificial digging pupae, during the adult period, the use of black light or fire concentrated trapping and killing adults.

(4) controlling the source of insects. The occurrence of Robinia pseudoacacia has obvious insect source, which can be controlled by smoke agent and other methods in time.

(5) Chemical control. The ideal effect can be achieved by using diflubenzuron to control pests before 3 years old, and the ultra-low capacity 150k~lm2 can be used. The medicine has good adhesion. Resistant to Rain Water erosion, it has a good protective effect on natural enemy insects, affecting not only one generation, but also the next generation of larvae, pupae and adults, showing deformities and unable to reproduce normally.

 
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