Inhibitory effect of culture filtrates of some rhizosphere fungi of tomato as influenced by oilcakes on the mortality and larval hatch of Meloidogyne incognita

Abstract

It has been suggested that as a result of organic amendments, changes occur in the rhizosphere mycoflora which adversely affect the nematode populations (Singh and Sitaramaiah, 1970; Khan et al., 1973). Similarly, tomato seeds coated with oilcakes when sown in the field bring about changes in mycoflora of the rhizosphere (Singh et al., 1980). It is likely that metabolic products of some of these fungi might adversely influence nematode activity. Hence it was considered interesting to study the effect of culture filtrates of some of the rhizosphere fungi on the hatching and mortality of larvae of the root knot nematode, Meloidogyne incognita (Kofoid et White) Chitw.