Solanum vegetables to control tea plant

Tea tree pods, also known as young leafhoppers, are often eaten by crickets. They have complicated feeding habits. They used to harm tea trees. In recent years, the damage to vegetable crops has become increasingly serious, mainly affecting eggplants, peppers, tomatoes, potatoes, and also crops and flowers such as cucumbers and legumes. Adult crickets and young cubs can all be harmed. Most of them are concentrated in young leaves. Eggplant and pepper are the most serious victims. As the corpus callosum is small and difficult to detect with the naked eye, the symptoms of the disease are sometimes similar to those of viral diseases. Some vegetable farmers mistakenly made viral diseases and the control effect was poor, resulting in serious losses.

Disease symptoms

The symptom of tea damage caused by tea scutellaria is often confused with virus disease and misdiagnosed. Viral diseases are mainly transmitted by maggots, and they can also be transmitted through the seeds, which are poisonous and mechanically rubbed. The diseases can be caused all year round in protected vegetables. The damaged plants are first slightly chlorotic in the leaf veins of the heart, but not obvious. The leaf is gradually reduced to the leaf shrinkage, and later the diseased leaves are thickened to form the "buckle" and "down buckle". The tender stems are distorted and have a willow leaf shape. It is not noticeable to the naked eye but can be observed under a magnifying glass.

Habits

Tawny tea has tenderness, and when the feeding site becomes old, it immediately shifts to the new young site. Chengyu and Ruoqiang are feeding on the back of the young tender buds and young leaves, causing chlorosis of the leaves. Tea scutellariae occur mainly in warm areas, with the most severe occurrence of vegetables in greenhouses. Multiple generations can occur in one year, and one generation can be completed in about 4-5 days at about 30°C, and 7 to 10 days in about 20°C. It can occur in the greenhouse all year round, but it has low fertility in the winter and it is harmful. Also light. Winter mainly in winter in the greenhouse. It began to occur in mid-March from the middle of the greenhouse. The period from mid-June to late July was the peak period. The exposure period was relatively late.

Control methods

Agricultural control. Choose healthy and unripe seedlings for planting, timely cultivating and weeding, remove litter, and reduce the number of insects.

Chemical control. Grab early spray control. May use 2000% of 73% Kotel Emulsion, 2000 times of 15% Broom Emulsion, 2000 times of 5% thione ketone Emulsion, 1000 times of 50% Emulsion of bromoxanthone, or 25% of Efficacy The quizphos-containing EC 800 times, or the 35% SAC 1000 times, or the 20% chloramphenicol 3000 times, or the nebulizer 3000 times evenly sprayed. The above medicines can be alternately used in turn, sprayed once every 7-10 days, and sprayed 2-3 times. It should be noted that spraying is stopped 10 days before harvesting. In the shed when the central point of injury occurs when the medication, spraying the focus is on the upper part of the plant, especially on the back of the young leaves and tender stems.

Interconnected Smoke Alarm

Rictron Industrial Co., Ltd , https://www.szrictron.com