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1 December 2010 Effect of Reproductive Mode on Host Plant Utilization of Melon Aphid(Hemiptera: Aphididae)
Xiangdong Liu, Xue Gao
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Variation in the reproductive mode of melon aphid Aphis gossypii Glover occurred on the large geographic scale, but the performance of different reproductive modes to use host plant is poorly understood. Life tables of melon aphid population that undergo the anholocyclic, androcyclic, and intermediate reproductive mode were conducted on different host plants. The results showed that the anholocyclic and androcyclic strains could become adults and produce offspring on cotton Gossypium hirsutum L., whereas the intermediate strain could not. The survival rate, net reproductive rate (R0), and intrinsic rate of natural increase (rm) of the androcyclic strain on cotton were significantly greater than that of the anholocyclic strain. The three strains could aptly use cucurbits host plants including cucumber Cucumis sativa L., pumpkin Cucurbita moschata (Duchesne ex Lam. ), and zucchini Cucurbita pepo L.; survival rate and R0 were not significantly different on these two host plants. Moreover, the rm of the anholocyclic strain on cucumber and the androcyclic strain on pumpkin and zucchini were significantly greater than that of the other two strains. The abilities of the three strains to use a host plant were flexible, because their rm on pumpkin or zucchini became equal after rearing for four successive generations; furthermore, the intermediate strain attained the ability to use cotton, and the performance of anholocyclic and intermediate strains to use cotton also significantly increased after feeding on pumpkin or zucchini for one or three generations. It was concluded that the reproductive mode and feeding experience affected the performance of melon aphid to use a host plant.

© 2010 Entomological Society of America
Xiangdong Liu and Xue Gao "Effect of Reproductive Mode on Host Plant Utilization of Melon Aphid(Hemiptera: Aphididae)," Environmental Entomology 39(6), 1878-1883, (1 December 2010).
Received: 23 July 2009; Accepted: 1 May 2010; Published: 1 December 2010

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androcyclic mode
anholocyclic mode
Aphis gossypii
intermediate mode
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