温度对3种蚜虫生长发育及繁殖的影响

Effects of Temperatures on the Development and Fecundity of Three Species of Aphids

在不同温度条件下，对豆蚜、豌豆蚜、豌豆修尾蚜3种蚜虫发育历期、产仔量、寿命的影响进行了比较试验，结果显示，豆蚜发育起点为（6．05±1．44）℃，有效积温为（106．63±9．19）日度；豌豆蚜发育起点为（5．69±1．72）℃，有效积温（113．01±2．98）日度；豌豆修尾蚜发育起点为（4．02±2．22）℃，有效积温为（131．45±29．84）日度，3种蚜虫最适发育温度为19～23℃，在19℃时产仔量最多，其中以豌豆蚜的繁殖能力最强，达69．5头。

The developmental zero, effective accumulative temperature （EAT）, and fecundity for three species, namely, Aphis craccivora, Acyrthosiphon pisum and Megoura japonica, were studied. The results showed that the developmental zero of A. craccivora, A. pisum and M. japonica were （6.05 ± 1.44） ℃, （5.69 ± 1.72） ℃, and （4.02 ± 2.22） ℃. The EAT of the three species were （ 106.63 ± 9.19）, （ 113.01 ± 2.98）, and （ 131.45 ± 29.84） ℃ day-degree respectively. The range of fit temperature for three species is 19 - 23℃. Under 19℃ all of three species can lay more number of nymphae than that at other temperatures and A. pisum has the highest fecundity among the three species, 69.5 nymphae on average laid by a female in her whole life.