Effectiveness of some nematicides and oil cakes in the management of Pratylenchus thornei on Mentha citrata, M. piperita and M. spicata

Evaluation of some nematicides (aldicarb, carbofuran, ethoprop) and oil cakes (linseed, mustard, neem) was done against Pratylenchus thornei infesting Mentha citrata, M. piperita and M. spicata in glasshouse experiments. All the treatments were effective in increasing herb weight and oil yield of all the test species of mint as compared to untreated-inoculated plants. However, herb weight and oil yield of plants treated with aldicarb, mustard and neem cakes were significantly higher than those of untreated-uninoculated plants. All the treatments were effective in minimizing nematode reproduction in all the species of mint. Neem cake was most effective in reducing the reproduction rate of P. thornei and increased the herb weight and oil yield, followed by mustard cake, aldicarb, ethoprop, carbofuran and linseed cake, respectively. Efficacy of different treatments in control of P. thornei was not much influenced by the plant species.