今年3月17日于龙岗水口在丛生嫩杂草的休闲田中发现雌螟蛾一个,比往年第一代螟蛾出现期提早10—12天,因为今年早春温度此往年高,有利于越冬幼虫化蛹。但由于我们是在去冬今春开展了声势浩大的深耕改土运动,提早浸春等一系列以防为主的技术措施,没有用钱买农药,而取得早造稻的白穗率只有0.2％的效果,比一般年份白穗率2％下降了9倍。我们的技术措施是: March 17 this year, Longgang outlet in the cluster of tender weeds in the leisure Tanaka found a female moth than previous years the emergence of the first generation of moth moth early 10-12 days, because in early spring temperatures in previous years, high in the past, is conducive to wintering larvae pupa. However, since we carried out a series of major prevention-oriented technical measures, such as extensive farming and soil improvement campaigns and early soaking in spring and early spring, we did not have the money to buy pesticides and the rate of white spike of early-made rice was only 0.2% The effect of white spike rate than the general year 2% decreased 9 times. Our technical measures are: