摘要
2006年春尺蠖扩散到吉林市并暴发成灾，对其发生规律进行了观察研究。春尺蠖在吉林市1a发生1代，以蛹在树冠下10～15cm土中越冬，3月下旬成虫羽化出土，并产卵于树干上，平均每雌产卵398粒，卵期16～18d，4月末至5月初幼虫孵化。自然条件下孵化的幼虫取食榆、柳、杨、桑等树木，历期33～36d，6月上旬老熟幼虫陆续下树入土越夏越冬。天敌有寄蝇、姬蜂、白僵茵及病毒等，其中寄蝇的寄生率达18％。
In 2006 ,Apocheima cinerarius spread to Jilin and broke out. The occurrence regularity of the pest was observed. The result indicated that Apocheima cinerarius had one generation a year in Jilin and overwintered as pupa in the soil under the crown. The adult emerged in late March and laid egges on the trunk with an average fecundity of 398 eggs per female. The egg stage was about 16-18 d. The larva hatched between the end of April and early May. Under the natural condition the larva attacked elm, willow,poplar and mulberry. The larval stage was 33-36 d. The matured larva went down the tree for overwinter and oversummer in the first ten days of June. Tachinid, ichneunonid, white muscardine fungi and virus were its natural enemies. The parasitization of tachinid reached 18%.
出处
《中国森林病虫》
北大核心
2010年第6期24-25,20,共3页
Forest Pest and Disease
基金
吉林市科技局重点课题(吉市科农200721)
关键词
春尺蠖
发生规律
吉林
Apocheima cinerarius Erschoff
occurrence regularity
Jilin
