A factorial experiment was conducted in 2003 to study the effect of aboveground herbivory by grasshoppers on the activity of root-knot nematode, Meloidogyne incognita, in corn. The experiment was conducted under greenhouse conditions at the Virginia Polytechnic Institute and State University. Four levels of herbivory consisting of 0, 1, 2, and 3 pairs of grasshoppers over a twenty-four hour period were initiated at the 6-, 9-, and 12-leaf growth stages. Observations were made on the number of knots formed, nematode eggs produced, and plant dry-matter weights among treatments.
Species 1: Tylenchida Heteroderidae Meloidogyne incognita (root-knot nematode)
Species 2: (grasshoppers)
Keywords: tritrophic interactions, corn
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