What about cucumber seedling worms?

Cucumber is one of the main vegetables in summer in China, which is generally sowed and propagated. The seeds are soaked and sowed to accelerate germination. In rural areas, the seeds are sown directly in the soil and can germinate in a few days. So, what about cucumber seedling bugs?

What about cucumber seedling worms?

Whitefly is commonly found on cucumber seedlings, which is mainly damaged by nymphs, which is concentrated on the back of cucumber leaves to absorb juice, resulting in leaf discoloration, yellowing, wilting and serious plant death. Nymphs are mostly distributed in the lower leaves, which can be removed and burned, or sprayed with insecticides such as Chongmijing, imidacloprid, cyhalothrin, acetamiprid, chlorpyrifos, avermectin, deltamethrin, buprofezin and so on.

Introduction of whitefly

Whitefly is a worldwide pest, which occurs all over China and is an important pest for growing crops in greenhouse. It has a wide range of hosts, such as cucumber, bean, eggplant, tomato, pepper, wax gourd, legume, lettuce, Chinese cabbage, celery, green onion, etc., as well as 112 families and 653 species of plants, such as flowers, fruit trees, medicinal materials, forage grass, tobacco and so on.

The optimum development temperature of whitefly is 25 ℃-30 ℃. It usually produces one generation in a month and more than 10 generations a year in the greenhouse. After mating, a female can lay more than 100 eggs. Adults are not good at flying, yellowing, clustered on the back of the leaves, tenderness, so there are many adults in the new leaves, nymphs and pseudo-pupae in the middle and lower leaves.