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山东临沂专区的南部、烟台专区北部沿海、惠民专区的中、北部和泰安、昌潍专区的部分平原地带,近年来麦田内粘虫(Leucania separata Walker)都有不同程度的发生为害。 对麦田粘虫的发生过程,我省尚缺乏系统的可靠的资料,多停留在机械的用一般大气候资料和人为诱蛾、诱卵的结果,估针分析该虫的发生展望。鉴于此种情况,我们从1960年冬季至1962年夏天,对麦田代粘虫的生物学作了些探索,以下仅从越冬代成虫的生物学、第一代粘虫幼虫数量变化和麦田物候的关系两方面,谈谈我们所获得的成果,不妥之处请读者指正。 一、越冬代成虫的生物学 (一)活动规律 1.与光的关系 成虫出现期间,每日当温度、风适合的情况下,日落后15—30分钟便有成虫外出活动,在田野特别在房舍、村镇附近,每当黄昏即可见到快速飞翔的成虫,日落后50分钟左右达到最高峰。
In the southern part of Linyi Prefecture of Shandong Province, in the northern coastal areas of Yantai, the central and northern parts of Huimin prefecture and part of the plains of Tai’an and Changwei prefectures, Leucania separata Walker in recent years has been harmed to varying degrees. On the occurrence of armyworm and armyworm in our province, there is still no systematic and reliable data on the occurrence of the pest in our province. Most of the data remain in the machinery with general atmospheric data and artificial moths. In view of this situation, from the winter of 1960 to the summer of 1962, we made some explorations on the biology of M. stickytis in wheat fields. The following is only based on the biology of overwintering adult adults, the change of population numbers of first-generation armyworm larvae, Two aspects of the relationship, talk about the results we obtained, the wrong readers please correct me. First, the biology of the overwintering adult adults (A) of the law of activity 1 and the relationship between light adults appear, daily when the temperature and wind suitable circumstances, 15-30 minutes after sunset there will be adult out activities in the fields especially in Houses, near the village, whenever you can see the rapid flying adult dusk, 50 minutes after sunset to reach the peak.