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1992～ 1993年 ,通过室内、外人工饲养 ,明确了水稻二化螟 (ChiloSuppressalisWalker)在辽宁省单季稻地区不同温度下各虫态的历期及发育速度、有效积温和发育起点温度。一代卵的有效积温和发育起点温度分别为 88.8± 3.6日度和 11.6± 1.9℃ ;一代幼虫的有效积温和发育起点温度分别为 490 .0日度和 12 .9±3.3℃ ;一代蛹分别为 96 .9± 1.3日度和 12 .7℃。
From 1992 to 1993, the duration, developmental speed, effective accumulated temperature and developmental start temperature of ChiloSuppressalis Walker at different temperatures in Liaoning province were determined through indoor and outdoor artificial feeding. The effective accumulated temperature and developmental starting temperature of one generation of eggs were 88.8 ± 3.6 and 11.6 ± 1.9 ℃ respectively. The effective accumulated temperature and developmental threshold temperature of the first generation larvae were 490.0 and 12.9 ± 3.3 ℃ respectively. The first generation of pupae were 96.9 ± 1.3 days and 12.7 ° C.