Aphids are a common vegetable disease. Of course, spinach is not immune. Prevention and control of spinach aphids is a headache. How to prevent spinach aphids? Let us take a look at the hazards and control methods of aphids. The damage of aphids: more than 10 generations per year in North China and 20-30 generations in the Yangtze River Basin. In the temperature conditions with aphid reproduction, both the north and the south can occur on an annual basis. Aphids have strong tropism on yellow and have a repellent effect on silver gray. It mainly uses adult and nymphs to suck juice on the back and tender stems of the leaves and secrete honeydew. Causes the blade to curl and the growth to stagnate. Prevention and control methods of locusts: 1. Prevention and control should be based on agricultural control, strengthen cultivation management, and cultivate "no insects" as the main measure, rational use of chemical pesticides, and actively carry out physical control. 2. When the aphids are found to be harmful, the following insecticides can be used for prevention and treatment: 240 g/L spirotetraethyl ester suspension agent 4000-5000 times solution; 10% flonicamid amide water dispersion granule 3000-4000 times solution; 10% imidacloprid WP 1500-2000 times solution; 50% anti-Pu Wei WP 1000-2000 times solution; 25% imipenem zhongdingwei emulsifiable oil 2000-3000 times solution; 25% thiamethoxam WP 2000-3000 times Liquid; for water spray, the worm is separated by 7-15 days. Metallurgical Microscope ,Optical Metallurgical Microscope,Portable Metallurgical Microscope,Inverted Metallographic Microscope Ningbo ProWay Optics & Electronics Co., Ltd. , https://www.proway-microtech.com