Integrated management of root-knot nematode, meloidogyne javanica in hybrid tomato
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Date
2016
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Publisher
CCSHAU
Abstract
Studies were carried out on integrated management of root-knot nematode, Meloidogyne
javanica in hybrid tomato under field conditions. This research endeavor consisted of three pronged
strategies in which experimentation was done at nursery stage and under main field conditions at two
stages of plant growth and nematode multiplication period. Individual practices of nematode
management such as biocontrol agents (Trichoderma viride @ 50 g/m2, Paecilomyces lilacinus @ 50
g/m2, chemicals (carbofuran @ 7 g/m2, cartap hydrochloride @7.5 g/m2) and organic amendments
(neem and mustard cake each @ 750 g/m2) were first evaluated in nursery beds and then treated
nursery was transplanted in the main field to have integration of these components for better plant
growth, yield and minimum nematode reproduction and multiplication. At nursery stage, there were 7
treatments of which the best two treatments, i.e., neem cake and T. viride along with untreated check
were combined with three treatments in the main field.(T. viride @ 2.5 kg/ha, carbofuran @ 1 kg a.i./ha
along with untreated check) making a total of nine treatments. Observations recorded at the time of
transplanting revealed maximum plant growth of seedlings and minimum number of galls in neem cake
followed by T. viride. When these treated seedlings were transplanted in M. javanica infested main
field, the observations taken at 50 days after transplanting (mid season evaluation experiment) revealed
that highest plant growth parameters were observed in neem cake treated nursery when transplanted in
T. viride (main field application). Minimum nematode reproduction and multiplication was observed in
neem cake (nursery) integrated with T. viride (field) followed by T. viride (nursery) + T.viride (main
field). Similarly, when treated seedlings were transplanted in another field which was terminated at
harvesting of tomato, it was observed that highest tomato yield was recorded in neem cake at nursery
stage integrated with T. viride at main field followed by nursery application of T. viride combined with
T. viride (field). Minimum nematode reproduction and multiplication in terms of number of galls,
number of egg masses per plant, number of eggs per egg mass and final nematode population in the soil
was observed in neem cake (nursery) + T. viride (field) followed by T.viride at nursery integrated with
T. viride as main field application. Such studies will lead us to a scenario where management of M.
javanica would be possible by integration of ecofriendly, economic and effective components starting
from nursery upto main field application in hybrid tomato since the varieties have been replaced by
hybrids.
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Keywords
Carbofuran, Heem Sona, Integrated management, Management, Meloidogyne javanica, Neem cake, Paecilomyces lilacinus, Tomato, Trichoderma viride