Physical control by yellow trap aphids, black light trapping moth.
物理防治利用黄板诱杀蚜虫，黑光灯诱杀蛾类。
2
Aphids have many polarizations only in body color, such as the yellow, the green and the intermediate color etc in cotton Aphids.
仅体色蚜虫就有多种分化，如棉蚜有黄色型、绿色型和中间型之别。
3
The prevention effect of fly nets above watermelon against yellow melon leaf beetles, cabbage caterpillars and aphids were 100%, 100% and 80% respectively.