茶尺蠖发育历期和有效积温的研究

研究结果表明，茶尺蠖的卵、一至四龄幼虫、蛹、成虫的发育起点温度依次为10.84、11.17、11.37、8.97、10.68、9.44、10.78℃；有效积温分别为82.25、53.54、34.39、42.46、67.64、123.89、53.54日度。并得出各虫态（龄）的发育历期与温度的７个关系式。本资料可用于茶尺蠖发生期的幼虫分龄预测、历期预测和有效积温预测。

Studies on the Developmental Duration and Effective Accumulated Temperature of Ectropis ObliquaWarren.

The development zero and effective accumulative temperatures of the tea looper,Ectropisobligua Warren were detected as 10.84℃ and 82.25 day-degrees for egg,11.17℃and 53.54 day-de-grees for lst instar larva,11.37℃and 34,39 day-degrees for 2nd instar larva,8.97℃ and 42.46 day-degrees for 3rd instar larva,10.86℃ and 67.64 day-degrees for 4th instar larva,9.44℃ and 123.89 day-degrees for the pupa,and 10.78. ℃and 53.54 day-degrees for the adult,respectively.The relationshipsbetween the developmental durations and temperatures were described by seven mathematical equations.This result could be applied to predict the occurrence period of this insect by means of larval age discrimina-tion,duration,effective accumulative temperatures.