PLANT PARASITIC NEMATODES OF Kochia scoparia trichophilla AND PATHOGENICITY OF Rotylenchulus reniformis Linford AND Oliveira
Association of four di fferent plant. parasitic nematodes viz., Rotylenchulus reniformis, Hoplolaimus indicus, Tylenchorhynchus nudus and T. mashoodi with Kochia_scoparia trichophila, an ornamental plants, were recorded in North Bihar. The population of R. reniformis was predominant both in soil (66.38%) and root (67.72%) samples, while population of other nematodes varied from 1.60-29.29%. Damage threshold population of reniform nematode on Kochia was found to be 100 nematodes/plant/kg soil. The rate of egg liberation and total nematode multiplication was much higher with initial inoculum of 10 nematodes and decreased with increasing levels of inoculum.
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