Spatiotemporal Distribution of Two Euschistus spp. Stink Bugs (Hemiptera: Pentatomidae) in Southeastern Farmscapes
2022
Grabarczyk, Erin E. | Mizell, Russell F. | Greene, Jeremy K. | Herzog, Gary A. | Tillman, P. Glynn | Cottrell, Ted E.
Stink bugs (Hemiptera: Pentatomidae) are ubiquitous, cryptic phytophagous pests that are found in many crops. In agroecosystems, individuals disperse from adjacent non-crop hosts and tend to aggregate or cluster within fields. In this study, we characterized the distribution of Euschistus servus (Say) and Euschistus tristigmus (Say) over two years at three southeastern U.S. farmscapes. Stink bugs were captured in pheromone-baited traps, and Spatial Analysis Distance Indices (SADIE) was used to identify the location of significant aggregations by habitat type and season. Euschistus servus adults were more likely to be captured in pecan orchards, cotton, other crops, or unmanaged habitats than in woodland habitats. Significant aggregations of E. servus were detected in a variety of habitats including pecan, corn, cotton, peanut, and tobacco, as well as fallow fields, hay, pasture, and hedgerow. Fewer adult E. tristigmus were captured than E. servus adults, and adults of this species were typically trapped and aggregated in woodland habitats. The resulting data provide an important understanding regarding the seasonal movement and relative abundance levels of stink bug populations, which are critical to the development of integrated pest management strategies.
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