What are the common diseases and insect pests of litchi? How to prevent and cure?

Litchi is a common seasonal fruit in summer, which tastes sweet, juicy, tender and delicious. Many farmers have planted litchi, but the problems of diseases and insect pests also greatly affect the yield and quality of litchi. So, what are the common diseases and insect pests of litchi? How to prevent and cure? Let's get to know it together.

1. Stink bugs

Stink bugs generally nibble on the tips, spikes and fruits of litchi during the young fruit period, which will cause the fruit to fall. In the case of low temperature in winter, the stink bugs will enter a state of false death. We can shake the branches, fall to the ground and destroy them, or we can use pesticides to kill them. Generally, the active period of the stink bugs is March, April and May, and methamidophos and other insecticides are sprayed once a month in these three months. The eggs of the stink bugs are also obvious, and the eggs can be treated centrally.

2. Stalk borer

As the name implies, the pedicel borer will gnaw on the pedicel during the young fruit period of litchi, coming out from the pedicel into the fruit, nibbling on the core of the fruit, causing the fruit to fall, the transport tissue will be gnawed, and the leaves will be withered and yellow. in winter, the orchard should do a good job of clearing the orchard, concentrate and burn the fallen branches, and spray it one month before the flower and fruit are ripe, it can be sprayed with 750x dichlorvos or 1000 times Xing cotton, but it should be noted that The larvae live in the veins and the adults in the crown.

3. Inchworm

There are many kinds of inchworm, which can also eat leaves and young fruits. The most serious thing is that when litchi blossoms in spring, before or after the flower fade, it can be sprayed and killed with 800 times of dichlorvos or 900 times of trichlorfon. However, it should be noted that inchworm is also very harmful to people. Be careful not to let the inchworm touch the skin of the body, which will appear red and swollen, painful and itchy.

4. Leaf roll moth

Like geometrid, there are many species of leaf roll moth. Larvae gnaw on leaves, fruit tips and decay fruit, which are the most frequent among several pests, and the control methods are similar to those of the previous ones. In winter, they clean up the garden, concentrate on burning dead branches, and spray dichlorvos before blooming and spraying dichlorvos after flowering.

5. Beetles

There are two common kinds of beetles, flower-eating beetles and copper-green beetles, adult beetles eat leaves and fruits, etc. Larvae generally live in the ground to eat roots, so that fruit trees can not absorb nutrients, and the tree situation worsens. Beetles will concentrate to fly in the morning and evening, when artificial capture or fake death can be used to shake branches, fall to the ground and concentrate on elimination, or you can spray pesticides. Phoxim can also be sprayed before the larvae in the soil are unearthed.

6. Felt disease

Felt disease mainly harms tender leaves, seriously harms flower ears or branches, and the main pest is rust ticks. When this pest occurs, the frontal leaves are like rust, which is the most serious in spring. The injured leaves are toothpick-like protruding, the damaged parts are enlarged and thickened, and there will be white hairs on the back. In general, when this happens, it is necessary to cut off the damaged branches, remove the fallen branches, and burn them centrally, and sprout in spring. It can be prevented by spraying dichlorvos and other agents.

The above is the arrangement of the editor, I hope I can help you!