Mai spider is also known as red spider and fire dragon. It is divided into two kinds of wheat spiders and long-legged spiders. It is the main pest on wheat. The wheat spider is hi-wet, afraid of high temperature and dryness. The optimum temperature is 8-15 °C. It is distributed in irrigated land and growing wheat fields, mainly in the early and late activities with lower temperature and higher humidity, to 6-8. It is the peak of activity at 18-20 hours. The long-legged spiders of the wheat are warm and dry, and the optimum temperature is 15-20 °C. Every day after sunrise, the leaves rise to the leaves, which is more harmful at 9-16 hours, and the maximum number is 15-16 hours. The base of the wheat plant is latent. Both spiders are clustered and suspended, all of which are caused by crawling and wind expansion. The sap is sucked by the sucking mouth device, and the yellow-white spots appear on the damaged leaves. Later, as the red spiders increase, the leaves appear red patches, and the damaged leaves are partially or even fully curled, turning yellow or reddish brown, and the wheat plants are poorly fertile. The small particles are light, the seed setting rate is low, the yield is reduced, and the whole plant is dry when severe. Wheat spider pesticide control: (1) Seed dressing with 75% phorate (3911) emulsifiable concentrate 100-200 ml, watering 5 kg, spray mixing 50 kg of wheat, and the two wheat spiders are more effective. (2) 3% mixed powder in the field, or 1.5 dimethoate or 1.5% methyl 1605 powder, 1.5 to 2 kg per acre. (3) Field spray 40% omethoate EC 2000 times, or 40% dicofol emulsifier 1500 times, or 50% malathion 2000 times, apply 75 kg of liquid. Garden Light,Outdoor Garden Landscape Lights,Outdoor Led Lighting,Garden Courtyard Light Changzhou Jingui Lighting Technology Co., Ltd , https://www.jinguilighting.com