How to prevent whitefly
Whitefly is also known as the white moth. It belongs to the family Homoptera. It is a worldwide pest that occurs in all parts of China and is an important pest for growing crops in greenhouses and greenhouses. The host has a wide range of vegetables, such as cucumber, kidney bean, eggplant, tomato, pepper, melon, beans, lettuce, cabbage, celery, and green onions. It can also harm flowers, fruit trees, herbs, pastures, tobacco, etc. 112 653 plant species. Harmful feature The sucking mouthparts, adult and nymphs suck the plant juice, the damaged leaves are chlorotic, yellow, wilting, and even the whole plant is dead. In addition, due to its strong reproductive capacity, rapid reproduction, large population, clustering, and secretion of a large amount of honey, seriously polluting leaves and fruits, often cause a large incidence of coal pollution, so that vegetables lose the value of goods. In addition to serious damage to tomato, green pepper, eggplant, potato and other solanaceous crops, it is also a serious pest of cucumber and kidney beans. Morphological characteristics: Adults are about 4.9-1.4 mm long, yellowish white or white, with male and female wings. The whole body is covered with white wax powder. The female individual is larger than the male, and the ovipositor is needle-shaped. Control method: (1) Spraying 25% cockroach cockroach WP 1000 times solution or 2.5% Uranus emulsifiable concentrate 3000 times solution, 2.5% cyhalothrin emulsifiable concentrate 3000 times solution, 20% chlorpyrifos emulsifiable concentrate 2000 times solution, 10 % imidacloprid wettable powder 1500 times solution, 40% imidacloprid concentrated solvent 4000 times liquid, 25% Akti water dispersible granule 3000 times liquid and the like. (2) A bee can be introduced into the greenhouse. Upper insect net (3) Adults have strong tropism on yellow. They can be used to trap adult worms and coated with worms, but they can not kill eggs and are prone to recurrence. Tin Lead Cadmium Solder Wire,Low Melting Point Solder Wire,Low Melting Soldering Leaded Wire,Low Working Temperature Soldering Wire NINGBO XIHAN TIN SOLDER CO.,LTD. , https://www.soldertop.com