摘要
[目的]探讨温度对黑点切叶野螟发育和取食量的影响,为利用黑点切叶野螟防治空心莲子草提供基础数据.[方法]以空心莲子草为食料,系统研究了不同温度对黑点切叶野螟幼虫发育历期、取食量和日平均取适量的影响.[结果]在试验温度范围内,随温度的升高,黑点切叶野螟幼虫的发育历期缩短,取食量增加,日平均食叶量增加.在17、22、27、32℃恒温下幼虫的历期分别为(53.84±2.70)、(22.02±0.74)、(14.48±0.08)、(10.97±0.57)d,取食量分别为(51.85±11.18)、(229.07±53.41)、(323.71±111.37)、(174.76±35.76) mg,日平均取食量分别为(0.96±0.21)、(10.40±2.42)、(22.36±7.69)、(15.93±3.26) mg/d.当温度达到37℃后,黑点切叶野螟无法完成生活史.[结论]综合研究结果来看,黑点切叶野螟的最适发育温度为27℃.
Abstract
[Objective] The aim was to explore effects of temperature on development and leaf consumption of Herpetogramma basalis (Walker) to provide reference for controlling Alternanlhera philoxeroiders (Mart.) by using Herpetogramma basalis (Walker).[Method] Development duration,leaf consumption and daily leaf consumption of Herpetogramma basalis (Walker) under various temperatures on a Alternanlhera philoxeroiders (Mart.) diet were studied.[Result] Results showed that within the experimental temperatures (except 37 ℃),the development duration decreased,leaf consumption and daily leaf consumption were increased with the increase of temperature.At the constant temperature of 17 ℃,22 ℃,27 ℃,32 ℃,respectively,the development duration of larvae were (53.84 ± 2.70) d,(22.02 ± 0.74) d,(14.48 ± 0.08) d and (10.97 ±0.57) d,respectively;the leaf consumption were (51.85 ±11.18) mg,(229.07 ±53.41) mg,(323.71 ± 111.37) mg and (174.76 ± 35.76) mg,respectively;the daily leaf consumption were (0.96 ± 0.21) mg,(10.40 ± 2.42) mg,(22.36 ± 7.69) mg and (15.93 ± 3.26) mg,respectively.If the experimental temperature was more than 37 ℃,Herpetogramma basalis (Walker) could not finish life history.[Conclusion] The most suitable growth temperature for Herpetogramma basalis (Walker) is 27 ℃.
基金项目
湖北省农业科技创新中心资助项目(2016-620-003-03-03)
国家科技期刊平台
NSTL
维普
万方数据