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1 August 2014 Host Plant Probing Analysis Reveals Quick Settlement of the Solenopsis Mealybug During Host Shift
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Abstract

Quantitative feeding behaviors were analyzed by electronic penetration graph technique to evaluate the resources utilization efficiency of the solenopsis mealybug, Phenacoccus solenopsis (Tinsley) (Hemiptera: Pseudococcidae), transferred to a novel host. Both nonphloem and phloem factors were contributed to the host availability during host shift; while only “prephloem” factor was involved with their offspring’s fitness to the transferred host, on which they fed as effectively as their mothers did on the origin host. Different performances on different hosts were supposed to have relations with the diverse phloem components, rather than feeding behaviors. P. solenopsis could try and exploit an efficient stylet pathway to reach the phloem, which would be an importance factor to account for the expansion of the host range and adaptations to different hosts. High efficient feeding behaviors of P. solenopsis in the current study manifested its capability of resource utilization to the novel host, which was suggested to be advantageous for its host shift, and to be the explanation for rapid host shifts associated with its broad host range and quick settlement.

© 2014 Entomological Society of America
Fang Huang, Zhijun Zhang, Weidi Li, Wencai Lin, Pengjun Zhang, Jinming Zhang, Yawei Bei, Yueping He, and Yaobin Lu "Host Plant Probing Analysis Reveals Quick Settlement of the Solenopsis Mealybug During Host Shift," Journal of Economic Entomology 107(4), 1419-1425, (1 August 2014). https://doi.org/10.1603/EC13510
Received: 24 November 2013; Accepted: 1 May 2014; Published: 1 August 2014
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