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蓄齿胫叶甲 Gastrophysa polygoni (Linnaeus)是蓼科杂草蓄上的一种重要天敌昆虫。本文研究了该虫的发育起点温度和有效积温 ,结果表明 ,在 19～ 31℃范围内 ,该虫的发育历期随温度升高而缩短 ,反之则延长。经测定 ,卵的发育起点温度为 (10 .4 5± 0 .14 )℃ ,有效积温为 56 .2 4日度 ;幼虫期的发育起点为 (8.12± 0 .2 4 )℃ ,有效积温为 12 2 .2 0日度 ;蛹的发育起点为 (9.70± 0 .82 )℃ ,有效积温为91.70日度 ;产卵前期的发育起点和有效积温分别是 (16 .17± 0 .96 )℃和 52 .83日度 ;全世代的发育起点为 (12 .6 0± 0 .4 3)℃ ,有效积温为 2 90 .4 0日度
Gastrophysa polygoni (Linnaeus) is an important natural enemies of Polygonaceae weeds. In this paper, the developmental onset temperature and effective accumulated temperature of this pest were studied. The results showed that the developmental period of the pest decreased with increasing temperature in the range of 19 ~ 31 ℃, otherwise it was prolonged. The starting temperature of egg development was (10.44 ± 0.14) ℃ and the effective accumulated temperature was 56.24 days. The developmental threshold of larval stage was (8.12 ± 0.24) ℃, and the effective accumulated temperature was 12 2.02 days. The developmental starting point of pupae was (9.70 ± 0.82) ℃, and the effective accumulated temperature was 91.70 days. The developmental starting point and effective accumulated temperature of early spawning period were (16.17 ± 0.96) ℃ And 52.83 days; the starting point of development throughout the generation was (12.60 ± 0.43) ° C, the effective accumulated temperature was 2 90.0 days