《环境昆虫学报》

探究以烟粉虱Bemisia tabaci Gennadius为食料，沙巴拟刀角瓢虫Serangiella sababensis Sasaji的生物学特性，为利用沙巴拟刀角瓢虫控制烟粉虱提供理论依据。本试验在实验室条件下观察取食烟粉虱的沙巴拟刀角瓢虫各虫态的形态特征、生活习性、不同虫态的发育历期、存活率和繁殖力，并计算沙巴拟刀角瓢虫生命表参数。结果表明，在26±1℃、L∶D=14∶10、相对湿度75%±10%的条件下，以烟粉虱卵和若虫为食的沙巴拟刀角瓢虫的世代历期分别为18.82 d和17.75 d，世代存活率分别为65.53%和75.00%，成虫寿命分别为106.65 d和105.58 d，每雌产卵量分别为286.20粒和366.67粒。以烟粉虱卵和若虫为食的沙巴拟刀角瓢虫的内禀增长率(rm)分别为0.0581和0.0780，净增殖率(R0)分别为107.0338和147.8748，平均世代历期(T)分别为80.3985和64.0385，周限增长率(λ)分别为1.0598和1.0811。研究发现，取食烟粉虱若虫的沙巴拟刀角瓢虫世代发育历期短于取食卵的世代发育历期，繁殖率也高于后者，烟粉虱若虫比烟粉虱卵更适宜作为沙巴拟刀角瓢虫规模化生产的食料。

英文摘要:

This study determined the biological characteristics of Serangiella sababensis Sasaji feeding on Bemisia tabaci Gennadius, and to provide a theoretical basis for the control of B. tabaci. The morphological characteristics and life habits of the different stages of S. sababensis feeding on B. tabaci were observed under laboratory conditions, and the development duration, survival rate and fecundity were measured, and life table parameters were calculated. The result showed that under the condition of 26±1℃, L∶D=14∶10 and RH 75%±10%, the average developmental duration of the S. sababensis feeding on the eggs and nymphs of B. tabaci were 18.82 d and 17.75 d, and the survival rate were 65.53% and 75.00%, and the adult longevity were 106.65 d and 105.58 d, and the fecundity per female were 286.20 eggs and 366.67 eggs. The intrinsic rate of increase rm of the S. sababensis feeding on the eggs and nymphs of B. tabaci were 0.0581 and 0.0780, the net reproductive rate R0 were 107.0338 and 147.8748, and the generation time T were 80.3985 and 64.0385, and the finite rate of increase λ were 1.0598 and 1.0811. The study found that the developmental time of S. sababensis feeding on the nymphs was shorter than those feeding on the eggs, and the reproduction rate was also higher than the latter, and the nymphs of B. tabaci were more suitable as food for large-scale production of S. sababensis than the eggs.

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