Entomologia Experimentalis et Applicata (2013) 147, 1-8

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Xiaoguo Jiao, Wen Xie, Shaoli Wang, Qingjun Wu, Huipeng Pan, Baiming Liu and Youjun Zhang (2013)
Differences in host selection and performance between B and Q putative species of Bemisia tabaci on three host plants
Entomologia Experimentalis et Applicata 147 (1), 1-8
Abstract: B and Q are two putative species of the Bemisia tabaci complex (Hemiptera: Aleyrodidae), and are among the most invasive and destructive pests of crops and horticultural plants worldwide. In China, Q predominates and is displacing B. Although researchers have proposed that the higher capacity of Q to utilize host plants plays an important role in its replacement of B, there are few relevant field surveys and experimental studies. The difference in host assessment between B and Q in multiple-choice rather than in no-choice situations may be essential to understanding the displacement. Here, we compared settling and oviposition preferences, and adult and nymph performance, for the putative species B and Q of the B. tabaci complex on three common host species: poinsettia [Euphorbia pulcherrima Wild. ex Klotsch (Euphorbiaceae)], cotton [Gossypium hirsutum L. (Malvaceae)], and cabbage [Brassica oleracea L. (Brassicaceae)]. Although the preferred hosts for settling and oviposition were the same as those that supported maximum fitness (adult longevity, fecundity, and nymph survivorship), these hosts differed between B and Q. When given a choice, B preferred to settle and oviposit on cabbage over poinsettia and cotton, whereas Q preferred to settle and oviposit on poinsettia and cotton over cabbage. In a no-choice experiment, adult longevity, fecundity, and nymphal survival for B were greater on cabbage than on poinsettia and cotton, but the opposite was true for Q.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Shaoli Wang, Qing Jun Wu

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Bemisia tabaci biotype MEAM1 Cabbage (Brassica oleracea)
Bemisia tabaci biotype MEAM1 Cotton (Gossypium)
Bemisia tabaci biotype MEAM1 Euphorbia (crop)
Bemisia tabaci biotype MED Cabbage (Brassica oleracea)
Bemisia tabaci biotype MED Cotton (Gossypium)
Bemisia tabaci biotype MED Euphorbia (crop)