Hanging silkworm is a pest that harms cruciferous crops such as rapeseed, Chinese cabbage and broccoli. The hanging silkworm is widely distributed. After the insect pest is infected, it will easily lead to the decline of crop yield, affecting the economic benefits of farmers, and become the eye of the agricultural friends. So how to control the hanging silkworm? What are the difficulties in prevention and control? 1 See the insects open defense: Some agricultural people and friends have a weak sense of prevention, and did not do the early prevention and control work, but wait until the silkworms appear, and then they start to work. Even the prevention and control of adult adults is often overlooked. 2 Insects are tenacious: Hanging silkworms are resistant to high temperatures and cold, and are highly resistant to chemicals. And the worm is small, not easy to be found, but also good at concealment, drugs are difficult to hit directly. 3 Management backwardness: Some agricultural friends, planting management is too traditional, not scientific, lacking efficient and reasonable management experience. How to prevent hanging silkworms? Clear insect source Before planting, the diseased leaves and residual leaves in the field should be pruned in time and concentrated away from the planting fields for centralized destruction. It is also necessary to clean up the weeds in the field in time to prevent the insects from parasitic on crops and weeds for wintering. 2. Not for continuous Reasonable close planting, rotation for planting. Avoid continuous cropping to avoid mutual infection. 3. Physical control Physical control can choose to use insect traps, insecticidal lamps and other equipment for insecticide. If the conditions are not available, you can choose ordinary sunlight, and place insecticidal equipment under the lamp, such as a basin filled with pesticides. You can also hang a yellow board to kill the insects. 4. Chemical control Use 80-40ml of emamectin benzoate to spray with water, fight well and beat thoroughly. Because the hanging silkworms like to hide on the back of the leaves, so some medicines should be sprayed on the back of the leaves. When the medicine is used, it is “mosquito-likeâ€. That is, hit four weeks first, then hit the middle. 5. Agricultural control Reasonably arrange the mouthwash to avoid continuous cropping of cruciferous vegetables. After harvesting vegetables, remove the fallen leaves in the field, and then plow the fields, eliminate weeds in summer, wintering insects, ditch and other fields, reduce adult spawning places and larvae foodstuffs. . Yerba Mate is a large-leaved perennial woody plant of the holly family. Because of the similarity of the treatment to Chinese tea, this leaf, which is endemic to the Americas, is called "maté tea" in China. It is also known as "Jesuit tea", "tea from Paraguay", and "missionary tea". Yerba Mate Powder,Paraguay Tea Yerba Mate Powder,Instant Yerba Mate Tea Powder,Yerba Mate Tea Extract Powder Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyibiology.com
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