title: Soil Temperature Effects on Onion Seedling Injury by Pratylenchus penetrans.
abstract: The effect of soil temperatures 7-25 C upon injury to seedling onions by Pratylenchus penetrans was investigated. At 7-13 C < 100 nematodes/g of root caused significant reduction in onion root weights by the fifth week. More than 400 nematodes/g were required to produce comparable injury at 16-25 C.
authors.forename: J M
authors.initials: JM
authors.lastname: Ferris