椰心叶甲发育的起点温度和有效积温

Initial Development Temperature and Effective Cumulative Temperature of Brontispa longissima (Gestro)

通过室内饲养观察,测定了不同温度下椰心叶甲不同虫态发育的起点温度、有效积温及存活率。结果表 明,椰心叶甲世代发育起点温度为11.08 ℃,有效积温为966.22℃,在海南省儋州市1 a发生的理论代数为4～5 代。持续过高温度,如32℃不适宜椰心叶甲的生长。

The initial development temperature, effective cumulative temperature and survival rate of coconut leaf beetle [Brontispa longissima (Gestro)] were determined under different temperatures. The results showed that the initial development temperature was 11.08±0.40℃ and the effective accumulated temperature 966.22±33.08 day degrees. The coconut leaf beetle was found to have 4~5 generations in Danzhou, Hainan Province and was adapted to high temperatures.