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1 February 2010 Potential of Suction Traps As a Monitoring Tool for Aphis glycines (Hemiptera: Aphididae) in Soybean Fields
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Abstract

The current study evaluated the potential of using counts of winged adults captured in suction traps to forecast the local abundance of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), in soybean, Glycine max (L.) Merr., fields. The abundance of aphids was evaluated weekly by sampling plants in four to 11 soybean fields and recording the number of aphids in suction traps between 2006 and 2008 in four counties in Indiana and Illinois. Fields in each county were located within 10 km of their respective suction trap, which allowed us to evaluate the relation between aphid abundance on soybean plants and in suction traps at the county level. Migrant soybean aphids caught in suction traps exhibited distinct seasonal trends each year: in 2006, trapped migrants consisted predominantly of individuals dispersing from soybean to buckthorn (Rhamnus sp.); in 2007, in contrast, the majority of trapped migrants were apparently individuals dispersing among soybean fields. The cumulative number of aphids captured in suction traps was positively related to aphid densities on soybean plants. However, the utility of suction traps as a monitoring tool may be limited by the variation in temporal patterns observed in suction traps and on soybean plants each year, and the spatial variation in aphid abundance among soybean fields within a county.

© 2010 Entomological Society of America
Marc Rhainds, Ho Jung S. Yoo, Kevin L. Steffey, Dave J. Voegtlin, Clifford S. Sadof, Steve Yaninek, and Robert J. O'Neil "Potential of Suction Traps As a Monitoring Tool for Aphis glycines (Hemiptera: Aphididae) in Soybean Fields," Journal of Economic Entomology 103(1), 186-189, (1 February 2010). https://doi.org/10.1603/EC09121
Received: 20 April 2009; Accepted: 1 October 2009; Published: 1 February 2010
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