摘要
长武王东沟试区危害苹果的主要食心虫是桃小食心虫，其次是梨小食心虫。在该地区一年发生两代。成虫始发期在５月下旬至６月上旬，沟坡地带比塬面地区早发生６～１０天，影响成虫数量消长的因素为温度、降水、不同品种组合果园与防治效果。
The main eating centre pests endangering apple is Carposina niponesis Wals. at Wang-dong gully experimental area in Changwu county,the next harm is Grapholitha motesta Busck.The beginning period of ripe pest is in the ten days of last May to first June, It breed two filialsper annum. The filials were excavated 6～10 days earlier at valley slope than at Yuan surface.The factors that effect disappear and increase of ripe pests are temperature,precipitation,differ-ent breed composition and effect of prevention and cured.
出处
《水土保持通报》
CSCD
北大核心
1995年第6期73-77,共5页
Bulletin of Soil and Water Conservation
