棉铃虫
| 中文 | English |
|---|---|
| 棉铃虫 | Cotton bollworm / Legume pod borer |
| 学名：Helicoverpa armigera | Scientific name: Helicoverpa armigera |
| 类型：鳞翅目夜蛾科害虫 | Type: Lepidopteran pest (Noctuidae) |
主要危害 / Main Damage
| 中文 | English |
|---|---|
| 危害寄主广泛，除棉花外，还危害玉米、番茄、辣椒、茄子、秋葵、大豆等 200 多种作物。 | Wide host range: cotton, maize, tomato, chili, eggplant, okra, soybean, and 200+ crops. |
| 幼虫取食花蕾、嫩叶、嫩荚和果实，常钻入果实或荚内蛀食。 | Larvae feed on buds, young leaves, pods, and fruits, often boring inside them. |
| 危害严重时造成果实脱落、产量显著下降。 | Severe infestation causes fruit drop and significant yield loss. |
发生规律 / Occurrence
| 中文 | English |
|---|---|
| 成虫具趋光性，夜间活动，白天潜伏。 | Adults are nocturnal and attracted to light, hiding during the day. |
| 雌蛾产卵量大，每头可产卵 1000 粒以上。 | Females lay >1000 eggs during their lifespan. |
| 幼虫 1–2 龄常取食叶片，3 龄后开始蛀食果实和荚果。 | Young larvae feed on leaves; older instars bore into fruits and pods. |
| 发生代数多，在热带地区可周年繁殖。 | Multiple generations per year; continuous breeding in tropical regions. |