How to prevent eggplant black spider
First, the morphological characteristics: Adult female body length 0.42-0.57 mm, male 0.25 mm, oval-shaped, bright red, there are 4 pairs of feet, no claws, attached to the top with 4 sticky hair. The back of the skin is 2 dark stripes, printed spherical, colorless and transparent. Larvae are nearly round and dark green. Eyes red, with 3 pairs of feet, nymphs. The larvae are red after peeling and have 4 pairs of feet. Second, the hazard characteristics: Cubs and Ruoqiang cluster back sucking sap, the yellow and white damaged leaves are severely yellow and dry coke, the main hazards of pepper, melons, beans and so on. Third, control methods: 1, remove weeds and reduce the source of insects. 2, pay attention to watering to prevent the field humidity is too low. 3, to strengthen the inspection of insects, control at the stage of spotting. 4, spray 50% sulfur suspension agent, 200-300 times or 40% chrysanthemum EC 2000-3000 times or 73% chlorate EC 1200 times or 25% Qubu Meng WP 1000-1500 times.