杨扇舟蛾生物学特性与发生规律

Biological characteristics and occurrence law of Clostera auachoreta

通过室内饲养与野外调查相结合的研究方法,对杨扇舟蛾的生物学特性与发生规律进行了观测,杨扇舟蛾在鲁西南地区1a发生4代,以第4代蛹在树下土缝、树干伤疤以及地面枯落物内越冬,次年4月初羽化为成虫。各代幼虫的孵化盛期分别在4月中下旬、5月上旬、6月下旬、8月上旬,有世代重叠现象。成虫夜晚活动,有趋光性,交尾产卵多在夜间,单雌产卵量平均300粒。

Based on the research of indoor breeding and field investigation,it is observed that Clostera anachoreta developed 4 generations per year,and the 4th generation pupa winterize inside the ground crack,burl and flag,then ecolses to imago in next April.The incubation peak of different larva is mid-late April,early May,late June,and early August with overlaps.Imago is active in night with phototaxis,and they usually mate and spawn in night time with a number of 300 average eggs from the female.