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首页> 外文期刊>Journal of entomology >Biological Aspects and Life Tables of Typhlodromips swirskii (Acari: Phytoseiidae) Fed Bemisia tabaci (Hemiptera: Aleyroididae)
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Biological Aspects and Life Tables of Typhlodromips swirskii (Acari: Phytoseiidae) Fed Bemisia tabaci (Hemiptera: Aleyroididae)

机译：Typhoodromips swirskii（Acari：Phytoseiidae）Fed Bemisia tabaci（Hemiptera：Aleyroididae）的生物学特征和生命表

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摘要

Development, feeding capacity and life table parameters of the predatory mite Typhlodromips swirskii (Athias-Henriot) fed three different levels of whitefly eggs Bemisia tabaci Genn. were studied under laboratory conditions of 26°C and 70% RH. Both organisms were collected from eggplant leaves growing in an greenhouse in Al-Qassim region, center of Saudi Arabia in 2009. In leaf disc assays, increasing number of prey eggs accelerated the development of T. swirskii. Duration of developmental stages and feeding capacity of T. swirskii were significantly affected by the number of whitefly eggs offered. During an ovipositional period of 13.1, 18.9 and 19.5 days, adult female of T. swirskii consumed an average of 41.6, 128.4 and 140.1 prey eggs when eachfemale was provided with 4, 8 and 12 prey eggs day~(-1) and laid an average of 10.5, 12.8 and 15.7 eggs day~(-1), respectively. Offering the predatory mite with 4, 8 and 12 prey eggs day~(-1) caused a mean generation time (T) of T. swirskii was 17.15; 17.66 and 15.45 days while, the net reproductive rate (R_o) averaged 10.86, 20.98 and 22.12 female progeny/female and the intrinsic rate of increase (r_m) of T. swirskii was 0.22, 0.17 and 0.14 female progeny/female/day, respectively. The finite rate of increase e~(rm) (lambda) was at its highest level (1.23) when T. swirskii individuals was provided with 12 eggs day~(-1) and declined to 1.19 and 1.15 after feeding on 8 and 4 prey eggs day~(-1), respectively. Crowding of T. swirskii significantly decreased feeding capacity and egg deposition.
机译：捕食螨类Typhlodromips swirskii（Athias-Henriot）的发育，摄食能力和生命表参数喂养了三种不同水平的粉虱卵烟粉虱。在26°C和70％RH的实验室条件下进行了研究。这两种生物都是从2009年在沙特阿拉伯中部Al-Qassim地区的温室中生长的茄子叶中收集的。在叶盘分析中，猎物卵数量的增加促进了T. swirskii的发育。 T. swirskii的发育阶段持续时间和摄食能力受到所提供的粉虱卵数量的显着影响。在排卵期13.1、18.9和19.5天，成年雌性T. swirskii的平均摄食时间为41.6、128.4和140.1，每只雌性每天分别提供4、8和12个猎物卵（-1）并产下一个每天平均分别有10.5、12.8和15.7个卵〜（-1）。每天给捕食性螨提供4、8和12个猎物卵〜（-1）会导致T. swirskii的平均产生时间（T）为17.15; 17.66和15.45天，女性子代/雌性的净生殖率（R_o）平均为10.86、20.98和22.12，而T. swirskii的内在增长率（r_m）分别为女性子代/雌性/天的0.22、0.17和0.14。 。当T. swirskii个体每天被提供12个卵〜（-1）时，有限增加率e_（rm）（λ）达到最高水平（1.23），并且在喂食了8和4个猎物后下降到1.19和1.15鸡蛋天〜（-1）。 T. swirskii的拥挤显着降低了摄食能力和鸡蛋沉积。

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