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Article
Alfalfa seedling diseases in 1998
Integrated Crop Management News
  • Gary P. Munkvold, Iowa State University
Document Type
Article
Publication Date
4-27-1998
Abstract
Wet conditions have delayed new alfalfa seedings in many parts of the state, and these conditions also may lead to problems with soilborne fungi. Several genera of fungi can attack alfalfa seedlings, includingPhytophthora, Pythium, Aphanomyces, Fusarium, and Rhizoctonia. Traditionally, Phytophthora andPythium have been considered the primary pathogens, but recently Aphanomyces euteiches has been more widely recognized. According to a survey we did in 1994, Aphanomyces is more common thanPhytophthora in Iowa soils, and these two fungi should be considered equal threats to seedlings. Seedling diseases should be suspected when emergence is poor and/or there are obviously stunted, discolored, or dead seedlings.
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
Gary P. Munkvold. "Alfalfa seedling diseases in 1998" (1998)
Available at: http://works.bepress.com/gary_munkvold/112/