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1 December 2011 Electrical Penetration Graph Analysis of the Feeding Behavior of Soybean Aphids on Soybean Cultivars with Antibiosis
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Abstract

The soybean aphid, Aphis glycine Matsumura (Hemiptera: Aphididae), is a major pest of soybean. In the current study, we used the Electrical Penetration Graph technique to study feeding behavior of soybean aphids on antibiotic-resistant soybean lines KS1621, KS1613, and KS1642, and a susceptible soybean line, KS4202. We observed that soybean aphids spent significantly shorter periods of time in the sieve element phase but slightly more times in nonprobing phases in all three resistant lines than in the susceptible control. Our study suggests that resistance factors exist in the phloem of the resistant soybean lines, and that these lines may contain antixenosis in addition to antibiosis.

© 2011 Entomological Society of America
Lieceng Zhu, John C. Reese, Joe Louis, Leslie Campbell, and Ming-Shun Chen "Electrical Penetration Graph Analysis of the Feeding Behavior of Soybean Aphids on Soybean Cultivars with Antibiosis," Journal of Economic Entomology 104(6), 2068-2072, (1 December 2011). https://doi.org/10.1603/EC11203
Received: 22 June 2011; Accepted: 1 August 2011; Published: 1 December 2011
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