甘蔗二点螟Chilo infuscatellus(Sne-llen)成虫趋光性弱,用灯诱法预测虫情效果不大,我们于1975年开始试用性外激素粗提物作虫情测报,指导大田防治的研究,结果如下: 雌娥性外激素活性:用水盆式诱捕器,每个诱捕器放未交配活雌蛾一头,于晚上进行田间诱捕,共77次,593盆,总诱雄量2040头,平均诱捕率52.5％,诱雄量3.4头/ Adults of the sugarcane two-spotted borer Chilo infuscatellus (Sne-llen) had weaker phototaxis, and the light-induced method was not effective in predicting insects. We started the trial of the extract of pheromone in 1975 for the study of field control and the result As follows: Female Erogenous pheromone activity: water pot trap, each trap unpaired live female moths, field trapping in the evening, a total of 77 times, 593 pots, the total number of induced lures 2040, the average trapping rate 52.5%, luring the amount of 3.4 head /