The major dominant species of insect pests were Pieris rapae and Lipaphis erysimi and the major dominant species of predatory enemies were Sittius sinensis and Theridium graminicola.

• 害虫主要优势种为菜青虫和菜蚜为优势种；捕食性天敌主要优势种为中华跃蛛、草间小黑蛛。