Insect pests and control of figs

Although figs are called no flowers, they are flowering plants. Figs are medicinal, ornamental and economic plants. It has obvious therapeutic effect on dyspepsia and hyperlipidemia. Fig tree is the plant with the highest production ratio at present, with high yield and easy management. There are fewer pests, but although they are less than other plants, some pests will occur if you don't pay attention to them. Next, I would like to talk about the common insect pests of figs and their control methods.

1. Mulberry longicorn beetle pest

Mulberry cattle pests mainly occurred in the first half of June and began to prevail in the second half of June. Adults begin to lay eggs from June to August, and the egg blocks are on branches about 40 centimeters above the ground. When laying eggs, the adults will gnaw on the bark to make "Ding" or "v" potholes and put the eggs in them. The larva appears after the egg block is broken, and the larva is very easy to find. If it is found that there is an unknown brown substance on the tree, it means that the larva must exist. The larva will eat from the outside to the inside on the branch and stay in the phloem to prepare for the winter. The main control method is to catch adults and kill them manually during the occurrence period of insect pests every year, and you can also spray pesticides such as dichlorvos or insecticide to kill larvae.

2. Huang Xie insect pest

Huang Cie pests, like mulberry cattle, occur in June every year, but Huang Cie lays eggs on the back of the leaves. The egg period is shorter and will be finished in ten days at most. When the larvae come out, they will begin to eat the mesophyll of the leaves, leaving veins. In the end, only veins will be left in the whole leaf, forming a network. When he grows up, he continues to eat the leaves, leaving only the petiole. In the larval stage, dichlorvos and other pesticides can be sprayed to control the larvae, and the control effect is better. And the yellow thorn E has the directivity, uses this to set the light trap to kill. Spray pesticides around the tree trunks to kill adults.

3. Black velvet beetle pest

The larvae of the black velvet beetle mainly endanger the roots of fig trees, and the adults feed on new branches and leaves, and mainly overeat by group touch. Adults will spend the winter in the soil, and when the temperature rises in spring, a large number of them will be unearthed, infringing on the new branches and leaves of fig trees, laying eggs in the soil in summer, and the larvae will eat the roots in the ground after coming out, seriously affecting the growth and development of figs. During the outbreak period of insect pests in spring, pesticides such as dichlorvos were dipped in slender leaves to be trapped and killed, and the soil mixed chemicals were stirred to kill the larvae in the ground. And the black velvet beetle will stay in the false death state of the tree for a period of time, and make use of the false death period of the adult to shake the trunk to make it fall for artificial hunting.

These three kinds of insect pests are more common in figs. All three kinds of insects harm different parts of fig trees, and all of them do great harm to figs. In particular, the larvae of beetles will gnaw all the roots of the whole tree without treatment, causing the whole tree to be unable to absorb water and nutrients and eventually die. Fig tree disease is very rare, the resistance to disease is strong, but it does not mean that there are no diseases, such as gray spot, so we should not take it lightly.