Journal of Pest Science (2014) 87, 419-427

P. Glynn Tillman (2014)
Physical barriers for suppression of movement of adult stink bugs into cotton
Journal of Pest Science 87 (3), 419-427
Abstract: Nezara viridula (L.), Euschistus servus (Say), and Chinavia hilaris (Say) (Heteroptera: Pentatomidae) are economic pests of cotton in the southeastern USA. Because adult stink bugs exhibit edge-mediated dispersal at crop-to-crop interfaces as they colonize cotton, strategic placement of physical barriers at these interfaces could manage these pests. The objective of this study was to determine the effectiveness of a physical barrier, either synthetic or plant-based, at the peanut-to-cotton interface for suppressing stink bugs that would move to cotton. In 2012 and 2013, sorghum sudangrass (2.4 and 2.1m high, respectively) was significantly taller than cotton (1.4 and 1.3m high, respectively) which was taller than peanut (0.4 and 0.5m high, respectively). Buckwheat (0.6m high), planted only in 2012, was significantly taller than peanut, but shorter than cotton. For both years of the study, sorghum sudangrass and a 1.8-m-high polypropylene barrier wall effectively deterred dispersal of stink bugs into cotton. Because each of these barriers was taller than cotton, their success in protecting cotton likely was due to disruption of the flight of stink bugs from low-growing peanut into cotton. The shortest barrier wall (0.6-m-high) did not suppress stink bug dispersal into cotton probably because it was approximately the same height as peanut. In 2012, flowering buckwheat increased the efficacy of Trichopoda pennipes (F.) attacking N. viridula in cotton although it did not deter dispersal of stink bugs. In conclusion, a barrier at least as tall as cotton can effectively retard the entry of stink bug adults into cotton.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Database assignments for author(s): Glynn Tillman

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Nezara viridula	Cotton (Gossypium)	U.S.A. (SE)
	Euschistus servus	Cotton (Gossypium)	U.S.A. (SE)
	Chinavia hilaris	Cotton (Gossypium)	U.S.A. (SE)
Trichopoda pennipes (parasitoid)	Nezara viridula	Cotton (Gossypium)	U.S.A. (SE)