为提高赤眼蜂防治大豆食心虫效果,去年我们对大豆食心虫的测报及放蜂技术进一步做了试验。结果如下:1.大豆食心虫的预测预报(1)越冬代成虫发生量调查调查于8月初开始,9月上旬截止,每天午后4～6时在大豆地内选2～4点,每点垄长100米,持木棍边走边拨豆株,观察蛾量和蛾团数。 In order to improve the effect of Trichogramma against soybean beetle, last year, we conducted a test on the report and the beekeeping of soybean. The results are as follows: 1. Prediction and prediction of soybean borer (1) Investigation of the occurrence of overwintering adult worms Investigation began in early August and closed in early September. Every afternoon at 4 ~ 6 o’clock in the soybean field to choose 2 to 4 points, each point length of 100 Rice, walking sticks while walking sticks beans, observe the amount of moths and groups of moths.