Some Monocotyledonous and Dicotyledonous Hosts of Meloidogyne microtyla. J. L. Townshend, Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0. J. W. Potter, and T. R. Davidson, Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0.. Plant Dis. 68:7-10. Accepted for publication 6 July 1983. Copyright 1984 Department of Agriculture, Government of Canada. DOI: 10.1094/PD-68-7.

Meloidogyne microtyla reproduced on 62 of 87 plant species and cultivars tested in the greenhouse. Gramineous species were the best host, which causes concern because grasses are used as orchard cover crops. Among dicotyledonous vegetable species, garden pea, celery, and parsley were poor to intermediate hosts. They are not major crops within the known geographic distribution of the nematode. Dicotyledonous weed species were poor to intermediate hosts of M. microtyla but are capable of maintaining the nematode in its area of occurrence. A differential host-range test to distinguish M. microtyla from M. chitwoodi, M. hapla, and M. incognita is proposed using pepper, carrot, peanut, corn, and tall oat grass.