Monday, December 11, 2006 - 10:35 AM

Examining the extent of pest problems and pest management options in organic soybeans for growers

Colleen May, and Ron Hammond, Ohio State University, Entomology, 1680 Madison Ave, Thorne Hall, Wooster, OH

The population of pests in organic soybean fields was examined to determine the severity of certain pests with in the system in and of itself. The bean leaf beetle is a major concern due to its potential to cause major pod damage and a loss in seed quality. This loss in seed quality results in problems in food grade markets around the world. Soybean abphid is also causing significant yield reduction in parts of the Midwest to organic producers. Organic growers need management information on the specific economic pests to make more informed management decisions. Sampling was done in two different counties in Ohio for comparison and within 5 fields each during the 2006 season. Sweep samples were taken as well as soybean aphid counts. The samples showed a presence of numerous pest species in the organic soybean fields in both counties.

Species 1: Coleoptera Chrysomelidae Cerotoma trifurcata (bean leaf beetle)
Species 2: Hemiptera Aphididae Aphis glycines (soybean aphid)

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