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【目的】为明确温度对栾多态毛蚜Periphyllus koelreuteriae(Takahashi)生长发育和繁殖的影响。【方法】在室内12,15,18,23,26和29(±1)℃,60%±7%RH和15L∶9D条件下,测定了栾多态毛蚜各发育阶段的历期、存活率和成蚜的产卵量,组建了栾多态毛蚜的实验种群生命表。【结果】在29℃条件下,卵不能孵化;在12~23℃范围内,卵和若蚜的发育历期随着温度的升高而缩短,均以12℃下的历期最长,分别为13.97 d和21.94 d,以23℃下最短,分别为5.86 d和7.34 d;在12~26℃范围内,温度与发育速率的关系符合Logistic模型;成蚜的生殖前期和寿命随着温度的升高而缩短;产卵量以18℃和23℃时最高,分别为107.06和120.23头/雌,26℃时最低,仅为63.16头/雌。生命表分析表明,净生殖率和内禀增长率随温度升高而增大,至23℃时达最大,内禀增长率与温度之间的关系可用rm=-0.0018T2+0.075T-0.5945(R2=0.9419,P=0.0481)来描述。【结论】温度对栾多态毛蚜的生长发育和繁殖有很大的影响,18~23℃是最适宜该虫种群增长的温度范围。
【Objective】 To clarify the effect of temperature on the growth and reproduction of Periphyllus koelreuteriae (Takahashi). 【Method】 The durations of all developmental stages of M. persicae were determined at 12, 15, 18, 23, 26 and 29 (± 1) ℃, 60% ± 7% RH and 15L: Rate and oviposition of the aphid, the experimental population life table of Luan polymorphicola was established. 【Result】 The eggs could not hatch at 29 ℃. In the range of 12 ~ 23 ℃, the developmental duration of eggs and young aphids shortened with increasing temperature, both of which were the longest at 12 ℃ Which were 13.97 d and 21.94 d, respectively, which were the shortest at 23 ℃, which were 5.86 d and 7.34 d respectively. The relationship between temperature and developmental rate accorded with Logistic model in the temperature range of 12 ~ 26 ℃. Increased and shortened. The fecundity was the highest at 18 ℃ and 23 ℃, which was 107.06 and 120.23 heads / female respectively, the lowest at 26 ℃, only 63.16 heads / female. Life table analysis showed that the net reproductive rate and intrinsic rate of increase increased with temperature and reached the maximum at 23 ℃, the relationship between intrinsic rate of increase and the temperature can be used rm = -0.0018T2 + 0.075T-0.5945 ( R2 = 0.9419, P = 0.0481). 【Conclusion】 Temperature has a great influence on the growth and reproduction of Aphis gossypii, and the temperature range of 18 ~ 23 ℃ is the most suitable for the population growth.