温度对取食芦笋蓟马的巴氏钝绥螨生长发育、存活和繁殖的影响

观察了巴氏钝绥螨Amblyseius barkeri Hughes在5种温度(15、20、25、30和35℃)、食料为芦笋蓟马,相对湿度72%,L∶D=12∶12条件下的发育历期、存活率和繁殖力。结果表明:巴氏钝绥螨卵、幼螨、前若螨、后若螨及世代发育历期在15℃下最长,随着温度的升高而缩短,35℃下最短。产卵前期在15～30℃下,随温度的上升而缩短,35℃下稍有延长。存活率15℃下最低,随温度的上升而提高,30℃下最高。产卵量15℃下最少,其次是35℃,20～30℃下产卵量较多。根据实验结果,组建了巴氏钝绥螨以芦笋蓟马为食料在5种不同温度下的实验种群生命表。

Influences of temperature on development, survival and reproduction of Amblyseius barkeri on asparagus thrips, Thrips tabaci

The developmental duration, survival rate and fecundity of Amblyseius barkeri Hughes were investigated under five different temperature conditions （ 15,20,25,30,35℃ , RH72% , L： D = 12 ： 12 ） when feeding on Thrips tabaci Lindeman. The results indicate that the developmental duration of eggs, larvae, protonymphs, deutonymphs and an entire generation of A. barkeri shortened with increasing temperature; the longest developmental durations were at 15℃ , and the shortest at 35℃. Duration of the preoviposition stage shortened when temperatures increased from 15℃ to 30℃ , but was prolonged at 35℃. The survival rates of all generations improved when temperatures increased; the lowest being recorded at 15℃ and the highest at 30℃. Oviposition was lowest at 15℃ , then at 30℃ , with temperatures between 20℃ and 30℃ the most suitable for oviposition. Population life tables of A. barkeri feeding on T. tabaci at five different temperatures were constructed based on these results.