Studies
on some nematophagous fungi for management of root knot diseases of tomato
Ramesh
Kumar Kushwaha1, BK Sarma2
1Central
Institute of Medicinal Aromatic Plants (CIMAP) Lucknow, UP
2Mycology and
Plant Pathology, IAS, BHU,
Varanasi-221005
Received: 12
August 2015 Revised Accepted: 13 September
2015
ABSTRACT
Meloidogyne
species cause root knot in Barley, Brinjal, Wheat, Rice, Banana etc. which can be managed by chemical
and non chemical methods. The use of pesticides including nematicides has
become very popular for control of pests. Isolation of nematophagous fungi for
isolation of nematophagous fungi from different substrates viz., leaf litter,
composts, farm yard manure (FYM) and decaying root galls, water agar, maize
meal agar (MMA) and rabbit dung agar media were used. 100gm of soil sample were
collected in separate polythene bag from top profile of soil from different
location. The growths of plant were considerably reduced after inoculation of
mass culture of A. oligospora even in combination with FYM.
However, root wt of the plants treated with mass culture of A. oligospora
increased maximum being in A. oligospora + FYM. It was interesting to
know that in spite of suppressive effect on plant growth the root galls were
significantly reduced in plant with A. oligospora + FYM. From the
observation it is evident that the A. oligospora control root knot
nematode.
Key Words: Meloidogyne
species, Mass Culture, Nematodes isolation from soils, Root knot disease