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Trends in rice stink bug abundance across the rice regions of Arkansas

Beginning May 2013, we have been monitoring in and around 27 farms across 9 counties (Fig. 1) in AR to document general trends (Fig. 2) in pest and beneficial insect abundance. As part of this work, we have been doing 10 sweeps at 5 locations at each of these farms to examine trends in abundance of pests (primarily stink bugs) and associated beneficial insects. As rice beings to head throughout the state, we present information on Rice Stink Bug abundance as monthly trend data at the county level, and grouped by the Rice Research & Promotion Board’s Ecosystems. We will continue to collect and update these trends on a monthly basis throughout the growing season. This information is not meant as a substitute for you scouting your fields. Rather, our intent with providing this information is to help growers, consultants and extension agents anticipate pest issues and to plan scouting efforts across the state.

Fig. 1 - Map of monitoring areas in Arkansas

Fig. 1 – Map of monitoring areas in Arkansas

It is important to note that this information is based on sweep samples in and around crop fields. Please remember that the appropriate scouting method will require you to get a representative set of sweep samples from your fields. Please consult the latest edition of the UA-Division of Agriculture’s MP144 – Insecticide Recommendations for Arkansas for the appropriate method of sampling for threshold detection, the current treatment thresholds and the registered methods of pest management in specific crops.

Fig. 2. Trends in Rice Stink Bug (Oebalus pugnax) abundance. The current treatment threshold for RSB in the first 2 weeks of panicle emergence is indicated with a dotted line. (Image Source: http://bugguide.net)

Fig. 2. Trends in Rice Stink Bug (Oebalus pugnax) abundance. The current treatment threshold for RSB in the first 2 weeks of panicle emergence is indicated with a dotted line. (Image Source: http://bugguide.net)

Acknowledgements:

This work would be impossible without the help from the county extension agents and growers in Arkansas, Lonoke, Prairie, Mississippi, Clay, Poinsett, Jackson, Ashley, Desha counties. We thank them for their continued support. This work is being supported by funds from the Rice Research & Promotion Board, the Division of Agriculture, University of Arkansas System, and the USDA-CSREES Hatch Program.

For additional information, please contact Dr. Raghu Sathyamurthy (raghu@uark.edu; 870-673-2661 Ext.235)

Information provided by:  Jason Gaspar, Cameron Boyd, Carey Minteer, Raghu Sathyamurthy

Rice Research & Extension Center and Department of Entomology, Division of Agriculture, University of Arkansas, Stuttgart, AR 72160


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