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Detection of European corn borer infestation in rainfed and irrigated corn using airborne hyperspectral imaging: implications for resistance management
Citation:
Carroll, M. W., J. A. GLASER, T. E. Hunt, AND K. L. Copenhaver. Detection of European corn borer infestation in rainfed and irrigated corn using airborne hyperspectral imaging: implications for resistance management. Presented at 2009 ESA Annual Meeting, #0021, Indianapolis, IN, December 13 - 16, 2009.
Impact/Purpose:
To inform the public.
Description:
Recently, corn grown for grain in the United States has increased from 28 million ha in 2006 to more than 35 million ha in 2007 with a production value of over $52 billion dollars. Transgenic corn expressing the plant incorporated protectant Bacillus thuringiensis toxin represented nearly 50% of the 2007 planted corn. Such large plantings of transgenic corn spread across wide geographical areas makes monitoring for development of insect pest resistance to the toxin challenging. Remote sensing potentially provides a means of reliably detecting plant stress related to insect feeding damage. During the 2004 and 2005 growing season in Nebraska, we studied irrigation and rainfed effects on spectral vegetation indices emphasizing foliar plant pigments. The research results are presented pointing to the utility of specific vegetation indices to detect European corn borer Ostrinia nubilalis (Hübner) infestation.
