3.Behavior Adults: *Activity at night;hide in crops or weeds during daytime; *Good at flying with phototaxis; *Eggs laid at back of leaves near central veins in masses of scales;20-30 eggs a mass and 300-600 eggs per female adult; Prefer not to lay on plants lower than 50cm. Adults: ™Activity at night; hide in crops or weeds during daytime; ™Good at flying with phototaxis; ™Eggs laid at back of leaves near central veins in masses of scales; 20-30 eggs a mass and 300-600 eggs per female adult; ™Prefer not to lay on plants lower than 50cm. 3. Behavior 3. Behavior