一、特点 1.美洲斑潜蝇繁殖速度快,为害严重。一年繁殖20～30代,是目前所有农业害虫繁殖力最强的一种。 2.为害作物多。有7个科,40多种作物,其中对菜豆、黄瓜、西瓜、冬瓜、西葫芦各种叶菜类作物,尤为严重。 3.适应能力强,为害损失严重。1994年从南美传入我国后,先后在21 First, the characteristics of 1. Native American lizard fly reproduction speed, serious damage. Breeding 20 to 30 generations a year, is now one of the strongest of all agricultural pests fecundity. 2. Harm crops. There are seven families, more than 40 kinds of crops, of which beans, cucumbers, watermelons, melon, zucchini various leafy crops, especially serious. 3. Adaptability, damage serious loss. After it was introduced to our country from South America in 1994, it has been successively at 21