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首页> 外文期刊>African Journal of Biotechnology >Host plant selection and oviposition behaviour of whitefly Bemisia tabaci (Gennadius) in a mono and simulated polyculture crop habitat
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Host plant selection and oviposition behaviour of whitefly Bemisia tabaci (Gennadius) in a mono and simulated polyculture crop habitat

机译：在单一和模拟的混养农作物栖息地中，烟粉虱烟粉虱（Gennadius）的寄主植物选择和产卵行为

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摘要

The host plant selection, oviposition behaviour and survivorship of whitefly (Bemisia tabaci?(Gennadius) was evaluated in green house. Three host plants cultivars namely: Brinjal (Solanum malagna),?chilli (Capsicum annuum)?and tomato(Solanum lycopersicum)?were placed in a multiple crop habitat at 34 - 36°C, 70 - 80% relative humidity (RH) in a normal day light. There was a variation of morphological characteristic among host plants (smooth and thick trichome leaves) where all developmental stages of pest were given free choice of foraging. Although the host plants genus?C. annum?and?S. lycopersicum?were also the potential host of?B. tabaci?but in the presence of?S. malagna,?the attack rate remains minimum on both the host plants. The feeding and egg laying was significantly higher on?S. malagna?L. leaves as compare to other two host plants in the open arena.?S malagna?L. was also preferred when pest was tested in confined cages for free choice probing on capsicum and?S. malagna?L. There was no significant but a slight difference in survivorship of all developmental stages of whitefly when Brinjal and Chilli and then Brinjal and tomato from two different experimental arenas were compared. There was no host plant varietal effect on the overall developmental time from egg eclosion to the adult. The leaves of?S. malagna?with thick trichomes were chosen significantly more higher for egg laying compared to other host plants. The morphological characters and plant architecture contribute to higher densities of adult whitefly (wf) compared to new leaves. No symptoms of viral infection has been observed on the chilli with Brinjal, whereas, the same variety of chilli was reasonably infected with virus in chilli monocrop arena.
机译：在温室中评估了粉虱（烟粉虱（Bemisia tabaci？（Gennadius））的寄主植物选择，产卵行为和存活率，三种寄主植物品种分别为：茄子（Solanum malagna），辣椒（Capsicum annuum）和番茄（Solanum lycopersicum）。在正常日光下放置于34-36°C，70-80％相对湿度（RH）的多种作物生境中，宿主植物（光滑和浓密的毛状体叶片）的形态特征存在变化，所有发育阶段害虫可自由选择觅食，尽管寄主植物C.annual。和S.lycopersicum？也是潜在的烟粉虱B. axiaci？宿主，但在？S。malagna的情况下，其侵袭率两种寄主植物上保持最小的含量，与开放空间中的其他两种寄主植物相比，？S。malagna？L。叶片的摄食和产卵量要高得多。在密闭的笼子里，可以自由选择辣椒和？S。malagna？L。Ther当比较了来自两个不同实验领域的Brinjal和Chilli，然后是Brinjal和番茄时，e的粉虱所有发育阶段的存活率均无显着差异，但略有不同。从寄卵到成虫，整个宿主的发育时间没有宿主植物品种的影响。 S.的叶子与其他寄主植物相比，选择具有较高毛状体毛的马拉格纳产卵要高得多。与新叶相比，形态特征和植物结构有助于提高成虫粉虱的密度。在使用Brinjal的辣椒上未观察到病毒感染的症状，而在辣椒单作区，合理地感染了相同种类的辣椒。

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