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Extension

Plant Sciences

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Full-Text Articles in Education

Farmers’ Perspectives On Resistance In Western Corn Rootworm To Crw-Bt Corn In Midwest Usa, David A. Andow, Robert J. Wright, Erin W. Hodgson, Thomas E. Hunt, Kenneth R. Ostlie Mar 2017

Farmers’ Perspectives On Resistance In Western Corn Rootworm To Crw-Bt Corn In Midwest Usa, David A. Andow, Robert J. Wright, Erin W. Hodgson, Thomas E. Hunt, Kenneth R. Ostlie

Entomology Publications

Resistance in western corn rootworm to transgenic corn hybrids was first confirmed in 2011 in Midwestern USA, and threatens their continued use. Farmers are often the first line of resistance detection, so their understanding and attitudes toward this issue are critical for improving resistance management. We conducted telephone focus groups during 2013 with farmers who had experienced rootworm resistance. There were four stages in dealing with unexpected rootworm injury: Awareness of a problem, diagnosis, confirmation, and recommendations. Most farmers discovered the problem themselves, but this usually happened too late in the growing season to limit yield loss. Once aware of ...


Assessment Of Iowa Soybean Growers For Insect Pest Management Practices, Erin W. Hodgson, Mari R. Kemis, Brandi N. Geisinger Aug 2012

Assessment Of Iowa Soybean Growers For Insect Pest Management Practices, Erin W. Hodgson, Mari R. Kemis, Brandi N. Geisinger

Entomology Publications

In 2009, Iowa soybean growers were surveyed about current insect pest management practices. The purpose was to better understand how often growers were scouting and what they perceived as the primary pests in Iowa soybean. Soybean aphid is the primary pest throughout the state. There was a 1423% increase of insecticides applied to soybean since 2000. Respondents indicated they are regularly scouting for soybean insects to make treatment decisions. Iowa growers are getting pest management information via Extension and industry.