Alderman is a research plant pathologist, U.S. Department of Agriculture, Agricultural Research Service, National Forage Seed Production Research Center, Corvallis, OR.
This publication reports research involving pesticides. It does not contain recommendations for their use nor does it imply that uses discussed here have been registered. All uses of pesticides must be registered by appropriate state or Federal agencies or both before they can be recommended.
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The material on this page is in the public domain.
Original posting: October 2001.