茶毛虫的发育起点与有效积温

研究明确,茶毛虫Euproctis pseudoconspersa Strand各虫态的发育起点温度(℃)与有效积温常数(日度),进而探明了卵期发育的数学模式:y=12.53+191.00x,预测式:N=191.00±36.13/T-(12.53±2.15);幼虫期发育的数学模式:y=6.16+820.24x,预测式:N=820.24±99.39/T-(6.16±2.14);蛹期发育的数学模式:y=4.89+365.28x,预测式:N=365.28±6.85/T-(4.89±0.36);全世代发育的数学模

Threshold for Development and Effective Thermal Summation of Euproctis pseudoconspersa Strand (Lepidopetera: Lymantriidae)

Tea tussock moth, Euproctis pseudoconspersa Strand, is one of the dominant insect pest of tea in China, especially in the older tea fields of the greater part of mountain areas.This paper deals with the effects of temperature on development of every stage and whole generation of tea tussock moth.The result of experiment shows that:The egg stage:The threshold for development is 12.53±2.15(℃), the effective thermal constant is 191.00±36.16 (degree days), and its mathematical formula is Y=12.53±191.00X.The larvae stage: The threshold for development is 6.16±2.14(℃), the effective thermal constant is 820.24±99.39 (degree days), and its mathematical formula is Y= 6.16+ 820.24x.The pupae stage: The threshold for development is 4.89±0.36(℃), the effective thermal constant is 365.28±6.85 (degree days), and its mathematical formula is Y=4.89±365.28x.The whole generation: The threshold for development is 7.90±0.38(℃), the effective thermal constant is 1340.36±123.55 (degree days), and its mathematical formula is Y=7.90+1340.36x.According to the established formula the generations of tea tussock moth per year in different location were predicted with the monthly temperature information by the authors, the results of consistency between the predicted and the actural figure were exhibited.