Strawberry Root Rot and the Recovery of Pythium and Rhizoctonia Spp
نویسنده
چکیده
One root disease complex often associated with strawberry plants grown in nonfumigated soil is referred to as black root rot. While not currently a widespread problem in properly fumigated commercial production fields, with the impending phase out of the use of methyl bromide and alteration of current fumigation practices this disease complex may once again become a problem. In other strawberry production areas in the world black root rot has been attributed to various combinations of root infection by Pythium species, three different anastomosis groups (AG) of binucleate Rhizoctonia spp., Cylindrocarpon sp., or the lesion nematode Pratylenchus penetrans (reviewed in Wing et al., 1994). In Connecticut it is believed that binucleate Rhizoctonia spp. and the lesion nematode are primarily responsible for the disease complex (LaMondia and S.B. Martin, 1989). In the strawberry production areas of central coastal California all of the fungal pathogens have been recovered from necrotic roots of plants growing in poorly or nonfumigated soil (Wilhelm et al. 1972; Yuen et al. 1991; F.N. Martin, unpublished), however, very little is known about the specific contribution of the different pathogens to disease expression in the local strawberry production system.
منابع مشابه
Title: INTERACTION AND BIOLOGICAL CONTROL OF THE STRAWBERRY BLACK ROOT ROT PATHOGENS PYTHIUM AND RHIZOCTONIA
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