Comparative efficacy of Trichoderma harzianum, neem extract and furadan on Meloidogyne incognita infecting tomato plant growth
Comparative efficacy of Trichoderma harzianum, neem extract and furadan on Meloidogyne incognita infecting tomato plant growth
R.R. Arain, R.N. Syed, A.Q. Rajput, M.A. Khanzada1, N.A. Rajput and A.M. Lodhi1†
ABSTRACT
Root-knot nematode Meloidogyne incognita (Kofoid & White) Chitwood is the virulent pathogen of tomato
plants. The artificial inoculation of M. incognita developed a large number of galls and suppressed the tomato
plant growth significantly. Three different concentrations of neem extract, furadan and Trichoderma harzianum
were evaluated to control the M. incognita. All concentrations proved effective in reducing the disease
development in nematode inoculated tomato plants. However, high dose of furadan became phytotoxic and plant
growth was checked together with a number of galls. While, higher doses of neem extract and T. harzianum
improved the plant growth. The combined applications of neem extract, furadan and T. harzianum were more
effective than alone. In combined application also, the higher dose of furadan caused negative effects on plant
growth. Present studies showed that incorporation of biocontrol agent like T. harzianum and botanical products
such as neem extract against root-knot nematode provided good results and can provide an alternate of chemical
pesticides which will be ecofriendly as well.
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June 2015
Pakistan Journal of Nematology, Vol. 33, Iss. 1, Pages 1-114
