Astragalus membranaceus is one of the most important pests for vegetables. It has a very complex diet and a wide range of host plants. It mainly damages vegetables such as tomatoes, cucumbers, eggplants, peppers, potatoes, melons, beans, celery, and radish. The adults and young cubs concentrate on sucking young parts of vegetables. The back of the victim's leaves was grayish brown or yellow-brown, oily, and the edges of the leaves curled downwards, and the fruit affected skin became yellow-brown. Owing to its small individuality, the tea plant is not easy to be found, so the damage caused by it is often mistaken for the occurrence of disease, resulting in prevention and control mistakes, so to remind farmers to pay attention.

Occurrence pattern: Tea leaves can occur in dozens of generations each year, mainly in the greenhouse plants or wintering in the soil. Shelter vegetables occur throughout the year, while open vegetables are heavy from June to September. The growth and development of this worm is rapid. Under the condition of 18°C-20°C, it can develop for 1 generation 7-10 days, and at 28°C-30°C for 1 generation 4-5 days. The optimum temperature for growth and development is 16°C-23°C and the relative humidity is 80%-90%. Humidity has little effect on adult pupa, and it can still live normally at 40%, but eggs and cubs can only hatch and live under relative humidity of more than 80%. Therefore, warm and high humidity is conducive to the growth and development of the tea plant. . The amount of eggs laid by females is more than one hundred, and eggs are sparsely produced on the back of the young leaves and in the recesses of the fruits. Chengyu has a strong activity and spreads by creeping or natural forces. Heavy rain has scoured it.

Control methods: 1. Deeply plowing the farmland, eliminating the insect source, and reducing the base number of the insect population; eradicating the weeds in the fields; pulling the picking vegetables as early as possible after the harvest; thoroughly removing the fruit drop, defoliation, and debris from the field; and burning them in a centralized manner; , Found damaged plants, early control.

2. Chemical control. When the field rolling leaf rate reaches 0.5%, spraying control is required. The available pharmaceuticals are 15% Dai Ling EC 3000 times, 1.8% Avermectin EC 4000 times, 20% Sieve Li EC 1500 times. In order to improve the control effect, a synergist or washing powder may be mixed in the liquid and the spray may be sprayed. Pay attention to spraying the back and tender parts of the leaves when spraying.

Fresh Ginger

Anqiu Ginger is famous for its bright yellow skin, good fruity shape, compact structure and strong ginger flavor. In addition to containing a large number of carbohydrates, proteins, vitamins and minerals, it also contains a large number of gingerol, gingerolone, gingerol and gingerol, etc., which has high edible value and medicinal value.

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