大豆套作大蒜、毛葱防控大豆蚜研究初探

为了明确大豆套作大蒜、毛葱对大豆蚜是否具有防控效果，通过棋盘式取样法在大豆单作田、大豆套作大蒜田和大豆套作毛葱田对大豆蚜及天敌种群发生情况进行调查研究。调查时间为大豆蚜发生始盛期至大蒜和毛葱收获后两周，每7天调查一次。结果表明，大豆套作大蒜和大豆套作毛葱2种耕作方式中，大豆蚜数量明显低于大豆单作田。说明通过利用作物的不同耕作方式防控大豆蚜是值得探索的可行之路。

Preliminary Report on the Study of the Control on Soybean Aphid with Intercropping of Soybean and Garlic or Chinese Onion

In order to confirm the effect of intercropping of soybean and garlic or Chinese onion on soybean aphid, the author has made a survey in the fields with soybean monocropping, soybean garlic intercropping and soybean Chinese onion intereropping by chessboard-sampling method. The survey date was from full incidence beginning period to harvest time of garlic or Chinese onion later 2 weeks. The survey was made every seven days. The results showed that the numbers of soybean aphid in fields by intercropping of soybean and garlic or Chinese onion were lower than soybean monocropping＇ s. It is possible to control soybean aphid with different tillage methods of crops.