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1 April 2009 Survey of Stink Bug (Hemiptera: Pentatomidae) Egg Parasitoids in Wheat, Soybean, and Vegetable Crops in Southeast Virginia
A. L. Koppel, D. A. Herbert, T. P. Kuhar, K. Kamminga
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Abstract

Stink bugs (Hemiptera: Pentatomidae) cause significant damage to many different crops and horticultural commodities in Virginia. However, little is known about the species diversity or impact of stink bug egg parasitoids in the state. A survey was conducted in 2005 and 2006 (May through September) in wheat (Triticum aestivum L.), soybean (Glycine max L.), and several vegetable crops by collecting natural egg masses of various stink bug species and by monitoring sentinel egg masses. A total of 570 Euschistus servus (Say) eggs in 26 egg masses, 11,197 Murgantia histrionica (Hahn) eggs in 939 egg masses, 15 Podisus maculiventris (Say) eggs in 2 egg masses, and 546 Acrosternum hilare (Say) eggs in 18 egg masses were field collected and returned to the laboratory, where emerging parasitoids were identified to species. In addition, 2,512 laboratory-reared E. servus eggs and 230 P. maculiventris eggs were placed as sentinels into crop fields and collected after 7 d, and parasitoid or stink bug emergence was recorded. Four species of hymenopteran parasitoids in the family Scelionidae were recovered from stink bug eggs: Telenomus podisi Ashmead, Trissolcus basalis Wollaston, Trissolcus edessae Fouts, and Trissolcus euschisti Ashmead. In addition, one parasitoid in the family Mymaridae (Hymenoptera) was recovered. Parasitism rates were highest in E. servus with 89.7 and 49.2% of egg masses and individual eggs parasitized, respectively. The predominant parasitoid species was T. podisi.

© 2009 Entomological Society of America
A. L. Koppel, D. A. Herbert, T. P. Kuhar, and K. Kamminga "Survey of Stink Bug (Hemiptera: Pentatomidae) Egg Parasitoids in Wheat, Soybean, and Vegetable Crops in Southeast Virginia," Environmental Entomology 38(2), 375-379, (1 April 2009). https://doi.org/10.1603/022.038.0209
Received: 7 August 2008; Accepted: 1 December 2008; Published: 1 April 2009
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