FORAGE LEGUME YIELDS AND NEMATODE POPULATION BEHAVIOR IN MICROPLOTS INFESTED WITH Paratylenchus projectus

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Abstract
Yield reductions were minimal in forage legumes grown in field microplots infested with the pin nematode Paratylenchus projectus. Decreased forage production of birdsfoot trefoil and red clover resulted from reduced second and third cuts. During 2.5 yr, nematode numbers decreased under alfalfa, but increased under white clover. Under red clover and birdsfoot trefoil, nematode numbers increased in the first season and either remained static or declined thereafter. Unlike other nematodes in northern climates, populations of the pin nematode did not decrease appreciably over winter under favorable hosts.

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