The relative abundance of four sub-communities was pests(0.7018) > predators(0.1641)>neutralities((0.0923) >)parasitoids(0.0418) and pests(0.9586)>predators(0.0164)>parasitoids(0.0145)>neutralities(0.0104),respectively in two development season.

• 春种和秋种菜用大豆田各亚群落的相对丰盛度分别为:害虫类(0.；7018)>捕食类(0