华山松木蠹象有效积温的初步研究

摘要

Under natural temperature indoor, original temperature and effective accumulated temperature for various development stages of Pissodes punctatus Longer, Situ et Zhang were determined. Based on these, the predict formula for effective accumulated temperature of ovum, larva, pupa and first generation have been propesed, which are N=124.15 +25.77/ [T-(9.83+2.64)] for ovum, N = 201.86±56.3/[T-(19.58+0.86)]for larva, N=255.71+39.14/ [T-(12.06±1.41)] forpupa andN=522.14±14.58/[T-(19.38±0.87)]for the first generation.%经室内自然变温条件下，对华山松木蠢象各虫态的发育起点温度和有效积温进行测定。据此，分别提出该虫卵、幼虫、蛹和一世代的有效积温预测式：卵N=124．15±25．77/[T-(9．83±2．64)]，幼虫N=201．86±56．3/[T-(19．58±0．86)]，蛹N=255．71±39．14/[T-(12．06±1．41)]，一世代 N=522．14±14．58/[T-(19．38±0．87)]。本研究为有效防治华山松木蠢象提供科学依据。