What to Do When Pepper Trees Get Pests? A Full Guide to Prevention and Control Methods

The demand for peppers in our country is large, and the planting area is also very wide. During the planting process for farmers, pepper trees are prone to pests. What should be done about this?

1. What to do when pepper trees get pests?

If cotton bollworm appears, matrine, rotenone, imidacloprid and other pesticides can be used for control; if it is tobacco budworm, then before the 3rd instar, spray imidacloprid, thiamethoxam, clothianidin and other pesticides; if it is the black cutworm, use thiamethoxam, clothianidin, deltamethrin and other pesticides; if it is aphids, imidacloprid, cyantraniliprole, beta-cypermethrin · acetamiprid and others can be used for control.

2. What are the symptoms of pepper pest damage?

1. Cotton bollworm

The larvae mainly bore into and feed on the fruit, and can also damage tender stems, leaves and buds; when buds and flowers are damaged, it can cause a large number of dropped buds and flowers; the larvae bore into the fruit and feed on the flesh, causing the fruit to rot and a large number of fruit drops, and it easily induces soft rot.

2. Tobacco budworm

The tobacco budworm is a boring pest on peppers. Its two lateral thoracic hairs on the prothorax are connected and far from the lower edge of the spiracle, and the small spines on the body surface are short and blunt. The larvae mainly bore into and feed on the host's buds, flowers and fruits, causing dropped buds, dropped flowers, dropped fruit or rotten wormy fruit. If not controlled, the fruit boring rate reaches 30%, and can be as high as 80%. It can sometimes also damage tender leaves and tender stems, eating them into holes.

3. Black cutworm

Its adults and nymphs rest on the underside of leaves and on tender shoots and tender stems, sucking sap. After the tender leaves and growing points of pepper seedlings are damaged, the leaves curl up. When the damage is severe, the entire leaf curls into a ball, and growth stagnates. The whole plant wilts and dies.

4. Thrips

Adults and nymphs damage leaves, flower buds and young fruit. After being damaged, the tender leaves shrink and become deformed, the growth of branches and side branches stagnates, and the epidermis of fruit stalks, leaves and fruit turns brown.

5. Whitefly

Pepper leaves gradually wilt until they die, contaminating pepper leaves and fruit and affecting the growth of peppers.

6. Beet armyworm

The larvae cause damage by nibbling or stripping the leaves. When young, they often gather in the heart leaves and spin webs to cause damage, then disperse to damage the leaves.

Whether it is pepper pests or diseases such as Fusarium wilt and bacterial wilt, prevention and control must be carried out in a timely manner, otherwise it will cause a decline in pepper yield or the death of the plants.