The overall objective of our research program is to develop and improve insect pest
management practices for row crops in southeast Arkansas. Selected ongoing projects
are outlined below.
Sugarcane aphid in grain sorghum
The sugarcane aphid, which can be a devastating pest of grain sorghum, was found infesting
sorghum in Arkansas in 2014. While it has been present in the U.S. for some time as
a pest of sugarcane, it has only been documented in sorghum at economically damaging
levels in the U.S. since 2013. Little information is available on the best management
practices for this insect in sorghum, and most of the insecticides labeled for use
in sorghum are ineffective. We are collaborating with other researchers in Arkansas
and throughout the affected region to develop management recommendations for sugarcane
aphid. Early efforts will focus on developing an economic threshold, evaluating insecticides
and application methods for chemical control, and determining the impact of cultural
practices such as planting date and variety on sugarcane aphid populations.
Photo: Winged and wingless sugarcane aphids on the underside of a sorghum leaf
Stubbins, F. L., N. J. Seiter, J. K. Greene, and F.P.F. Reay-Jones. 2014. Developing
sampling plans for the invasive Megacopta cribraria (Hemiptera: Plataspidae) in soybean. J. Econ. Entomol. 107: 2213-2221.
Seiter, N. J., A. Grabke, J. K. Greene, J. L. Kerrigan, and F.P.F. Reay-Jones. 2014.
Beauveria bassiana is a pathogen of Megacopta cribraria (Hemiptera: Plataspidae) in South Carolina. J. Entomol. Sci. 49: 326-330.
Seiter, N. J., F.P.F. Reay-Jones, and J. K. Greene. 2013. Within-field spatial distribution
of Megacopta cribraria (Hemiptera: Plataspidae) in soybean. Environ. Entomol. 42: 1363-1374.
Seiter, N. J., J. K. Greene, and F.P.F. Reay-Jones. 2013. Reduction of soybean yield
components by Megacopta cribraria (Hemiptera: Plataspidae). J. Econ. Entomol. 106: 1676-1683.
Seiter, N. J., D. S. Richmond, J. D. Holland, and C. H. Krupke. 2010. A novel method
for estimating soybean herbivory in western corn rootworm (Coleoptera: Chrysomelidae).
J. Econ. Entomol. 103: 1464-1473.