花蓟马发育起点温度和有效积温的研究

Studies on the Development Zero Temperature and Effective Accumulation Temperature of Frankliniella intonsa Trybom

在不同恒温条件下测定了花蓟马各虫态的发育历期，并用直线回归法计算出花蓟马各虫态的发育起点温度和有效积温。结果表明：随着温度的升高，花蓟马的历期明显缩短；其发育速率与温度间有很大的相关性；花蓟马卵、1-2龄若虫、3龄若虫（前蛹）、4龄若虫（蛹）、成虫产卵前期及全世代的发育起点温度，依次为10．06、10．83、12．39、10．00、14．56和10．12℃，有效积温依次为：70．74、74．94、16．21、41．52、15．82和234．36日度。

Each development period of Frankliniella intonsa Trybom was studied under a range of constant temperature （16,20,24,28 and 32℃ ）in the laborary. The relationship between tempei-ature and development speed of each life stage fitted with liner model. The development was relative to temperature for Egg , Nymph Ⅰ . ～ Ⅱ., Nymph Ⅲ. （Prepupa）, Nymph Ⅳ. （Pupa）, Pre- oviposition adult.Whole generation was 10.06,10.83, 12.39,10.00,14.56 and 10.12℃ .The effective degree-days for the development of each life stage were 70.74 for Egg, 74.94 for Nymph Ⅰ. ～ Ⅱ ., 16.21 for Nymph Ⅲ, 41/52 for Nymph Ⅳ., 15.82 for Pre - oviposition adult and 234.36 for Whole generation.