摘要
茶尺蠖Ectropis obligua hypulina Wehrli(鳞翅目尺蠖蛾科)是我国主要茶树害虫之一。长江下游至钱塘江流域,特别是浙江、苏南和皖南一带常有较重危害,成为当地许多生产单位的主治害虫。前人对茶尺蠖的生物学、消长规律和防治方法,有过不少研究报道。进一步对于温度与茶尺蠖发育的关系,侯建文等曾就变温对茶尺蠖第一代卵期发育的影响作过研究,其它则鲜有报道。本文系在不同恒温条件下,对茶尺蠖各虫态发育作系列观察,探明各虫态与全世代的发育起点温度与有效积温,以求对其发生规律的掌握及虫情预测的应用有所裨益。现将观察结果整理报告如后。
Tea geometrid, Ectropis obliqua hypulina Wehrli, is one species of the important insect pest of tea plant in China, especially in the lower reaches of Yangtze River and Qiarttang River valley.This paper deals with the effects of temperature on development of egg stage, larva stage, pupa stage and whole generation of tea geometrid. The result of experiment shows that:The egg stage: The threshold for development is 10.57±1.27 (℃) the effective thermal constant is 81.69±6.92 (degree day), and its, mathematical fomula is Y=10.57+81.69x。The larva stage: The threshold for development is 5.64+0.84 (℃), the effective thermal constant is 328.51±16.65 (degree day), and its mathematical formula is Y=5.64+328.51x.The pupa stage: The threshold for development is 7.28±1.78 (℃), the effective thermal constant is 180.70±19.44 (degree day), andits mathematical formula is Y=7.28+180.70x.The whole generation: The threshold for development is 6.90±0.79 (℃), the effective thermal constant is 631.59±26.39 (degree day), and its mathematical fomula is Y=6.90+631.59x.According to the established fomula, the generations of tea geometrid per year in different location were predicted with the monthly temperature information, the results of consistency between the predicted and the actural figure were exhibited.
出处
《安徽农业科学》
CAS
1989年第1期62-66,共5页
Journal of Anhui Agricultural Sciences
