1. Symptoms: adults, nymphs and larvae are harmful to the leaves of golden succinate. Red spider will first damage both sides of the main vein on the back of the leaf, and gradually spread all over the leaf from several small groups. When the amount of occurrence is large, they will crawl on the surface of the plant, often making the leaves of the whole tree yellow and white.
2. Control method: once the pest is found, the diseased leaves shall be removed in time and destroyed in a centralized way. When the disease is serious, it needs to be treated with Omethoate, trichlorfon or dicofol spray.
1. Symptoms: generally occurs in the environment with high humidity. It will absorb the sap from the plant, making the leaves yellow and tarnished. In serious cases, the growth of the plant will weaken rapidly, and even the stem nodes will fall off, until the whole plant withers and dies.
2. Control method: when the disease is relatively light, the pests on the leaves can be brushed off gently. When the disease is serious, 40% Omethoate or dichlorvos should be sprayed on the plants for treatment.
1. Symptom: it will stab and suck the juice in the leaves and twigs, make them lose green and appear yellow and white spots. After that, the lesion will gradually expand into pieces, leading to the leaves falling off.
2. Prevention and control method: when the disease occurs, the disease can be treated by spraying Omethoate or fenitrothion and other drugs.
