甘蔗是我区近年发展较快的作物,种植面积达10余万亩。为配合甘蔗生产的发展,摸清我区甘蔗主要虫害二点螟发生规律,有效地开展防治。本所自1985年起至1987年,对甘蔗二点螟发生规律作了初步调查,现将结果报告如下,供参考:一、研究方法1.二点螟生活年史观察:采取田间调查发育进度,室内部分饲养观察,结合性诱捕 Sugarcane is a rapidly growing crop in our region in recent years, planting more than 10 acres. In line with the development of sugar cane production, find out the main pests of sugar cane in our area the occurrence of two-point borer, effectively carry out prevention and treatment. The Institute from 1985 to 1987, the occurrence of sugarcane two-spot borer preliminary investigation made, the results are reported as follows, for reference: First, the research method 1. Two-spotted borer life history observation: to take the progress of field investigation and development, Indoor part of the observation, combined with trapping