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呼盟草地螟虫源,是以迁入为主,并且以一代幼虫危害严重。几年来,根据全国草地螟测报办法,结合我盟特点,进行了系统观测,并做了短期预报。一、草地螟的测报方法(一)成虫量的调查1.黑光灯诱测:从五月二十日开始,用二十瓦黑光灯诱杀成虫,每天记载灯下总蛾量,雌雄成虫数,发生始、盛、末日和高峰的蛾量。每天20点开灯,早晨5点关灯。
Hohmeng grasshopper source, is based on immigration, and a serious harm to a generation of larvae. Over the past few years, according to the National Measures for the measurement of Meadow Stem Breathers, combined with the characteristics of our Union, conducted a systematic observation and made a short-term forecast. First, the method of measuring grass borer (a) adult survey 1 black light detection: starting from May 20, with 20-watt black light trapping adults, the total amount of light recorded under the moth, the number of male and female adults, Moths occur at the beginning, at the end of the day, and at the peak. Turn on the lights at 20:00 every day and turn off the lights at 5:00 in the morning.