我场地处沿海,属滨海咸田,全场种植甘蔗面积达5万多亩。但因蔗田连片连作,造成害虫发生种类多、发生期长、世代重叠,从甘蔗萌芽至收获的整个生长期都不同程度地受害虫为害,影响甘蔗的产量和质量。主要害虫种类有螟虫(其中以条螟为主,其次黄螟,紫螟等)、蔗龟(主要是黑色蔗龟)、绵蚜、蓟蚂、蔗蝗等。1967年以前螟虫造成的枯心率普遍为10—15%,严重的达30—50%。螟害节率一般达10—15%,严重的达40%左右。过去,对甘蔗害虫的防治以化学农药为主,每年用药量多、成本高(最高的一年全场 My field at the coast, is a coastal salty fields, the audience planting more than 50,000 acres of sugarcane. However, the continuous cropping of sugar cane causes pests to occur in many varieties, with long period of occurrence and overlapping generations. Pests and insects are affected to varying degrees from the sprouting of sugarcane to the harvest, which affects the yield and quality of sugarcane. The main pest species are stem borers (including striped borer-based, followed by yellow rice borer, purple borer, etc.), sugarcane (mainly black sugarcane), cotton aphids, thistle, cane locust and so on. The dry heart rate caused by stem borers before 1967 was generally 10-15% and severe 30-50%. Pest damage rate of 10-15% of the general, severe up to 40%. In the past, the control of sugar cane pests dominated by chemical pesticides, the annual dose, high cost (the highest year of the audience