Studies on Bionematicide for the Control of Plant Parasitic Nematodes in Grape Vine & Vegetable Crops

Abstract

Root-knot nematodes, ring nematodes, lesion nematodes are the major limiting factor in grapevine and vegetable production in many regions of the world. These nematodes cause significant economic damaged to wide variety of crops. Infected crops showed decrease in yield and quality either directly from root deformation caused by nematodes feeding or indirectly from predisposition to infections by other pathogens that results from nematode penetration into the roots. For the management of these nematodes, botanical plant species of Marigold (Tagetes minuta) was assessed under the field assay and pot assay. The extract of this marigold plant was applied in different concentrations as soil drench in the pots. The different concentrations added in the pots as soil drench were 20%, 40%, 60%, 80% and 100%. The extract of the marigold plant has the active ingredient ‘Alpha-terthienyl’ that plays important role in reducing nematodes and production of healthy plants.