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Interplanting Wheat Is Not an Effective Postplant Management Tactic for Criconemella xenoplax in Peach Production

May 1998 , Volume 82 , Number  5
Pages  573 - 577

A. P. Nyczepir , Research Nematologist, U.S. Department of Agriculture, ARS, Southeastern Fruit and Tree Nut Research Laboratory, 21 Dunbar Road, Byron, GA 31008 ; P. F. Bertrand , Professor, Extension Plant Pathologist, University of Georgia, Tifton 31793 ; M. L. Parker , Associate Professor, Department of Horticultural Science , and J. R. Meyer , Professor, Department of Entomology, North Carolina State University, Raleigh 27695 ; and E. I. Zehr , Professor, Department of Plant Pathology and Physiology, Clemson University, SC 29634

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Accepted for publication 10 February 1998.

In two orchard experiments, interplanting wheat (Triticum aestivum cv. Stacy) around either newly planted or 4-year-old well-established peach trees did not suppress (P ≤ 0.05) the population density of the ring nematode, Criconemella xenoplax, after 3 years. Furthermore, inter-planting wheat around newly planted trees reduced tree growth, perhaps the result of competition for water and (or) nutrients. Wheat root exudate was not as attractive to C. xenoplax as peach root exudate, but wheat root exudate did not repel the nematode either. Stacy wheat appeared to be more beneficial as a preplant rather than as a postplant ground cover management tool for suppressing the population density of C. xenoplax.

Additional keywords: cultural control, Prunus persica, short life

The American Phytopathological Society, 1998