Reproduction, Penetration, and Pathogenicity of Pratylenchus penetrans on Tobacco, Vegetables, and Cover Crops

Abstract

MILLER, P. M. 1978. Reproduction, penetration, and pathogenicity of Pratylenchus penetrans on tobacco, vegetables, and cover crops. Phytopathology 68: 1502-1504. Thirteen cover or forage crops, 14 vegetable crops, eight sativum), and pumpkin (Cucurbita pepo) roots also contomato (Lycopersicon esculentum) cultivars, and four tained large populations of P. penetrans, but none was found tobacco (Nicotiana tabacum) cultivars were examined in the in asparagus (Asparagus officinalis) roots. Differences in greenhouse for susceptibility to root penetration by root populations of P. penetrans occurred within cultivars of Pratylenchuspenetrans. Of the cover and forage crops tested, several crops. Neither root necrosis nor plant height, both Saranac alfalfa (Medicago sativa) and alsike clover indicators of damage by P. penetrans, were consistently (Trifolium hybridum) had the largest populations of P. correlated with P. penetrans populations within the roots. penetrans per total root mass, while timothy (Phleum Knowledge of a plant's interaction with P. penetrans may pratense) and reed canary grass (Phalaris arundinacea) had enable the management of P. penetrans populations in the the smallest. Cucumber (Cucumis sativus), pea (Pisum field by proper selection of crop plants.