西花蓟马Frankliniella occidentalis(Pergande)是传入我国的重要入侵害虫,在贵阳地区对豆科蔬菜为害十分严重。在25℃条件下,组建了西花蓟马取食大豆叶片、豇豆叶片、四季豆叶片和四季豆豆荚时的实验种群生命表。结果表明:西花蓟马未成熟期取食四季豆豆荚时存活率最高,取食其它3种豆科蔬菜时存活率相差不大。西花蓟马取食四季豆豆荚时内禀增长力最高为0.1626,取食豇豆叶片时最低为0.0834,净增值率也是取食四季豆豆荚时最高,取食大豆叶片时最低,表明四季豆豆荚最有利于西花蓟马的生长发育和繁殖。在不同豆科蔬菜上的稳定年龄组配中未成熟期所占的比例很大,而成虫期所占的比例相对较小。 Frankliniella occidentalis (Pergande), an important invasive pest introduced into our country, has a very serious impact on leguminous vegetables in Guiyang. At 25 ℃, the experimental population life table of western flower thrips fed on soybean leaves, cowpea leaves, green beans and green beans pods was established. The results showed that the survival rate of F. occidentalis was the highest when it was in the immature stage, and the survival rate of the other three kinds of legume vegetables did not differ significantly. The highest rate of intrinsic increase was 0.1626 when the F. occidentalis was fed on the legume pods and the lowest was 0.0834 when it was fed on the cowpea leaves. The net increment rate was also the highest when it was fed on the kidney bean pods and the lowest when it was fed on the soybean leaves. Most conducive to the growth and reproduction of western flower thrips. In different leguminous vegetables, the stable age group with a large proportion of immature, while the proportion of adult stage is relatively small.