Status of root-knot nematode, meloidogyne hapla infection on carrot at Kodaikanal Hills of Tamil Nadu, India and its yield loss estimation

A survey was conducted in Kodaikanal hills of Tamil Nadu, India to know the association of root-knot nemtode, Meloidogyne hapla in carrot (Daucus carota subsp. sativus). The nematode was found in eight carrot growing villages surveyed at Kodaikanal. Infestation was high (150-300 nematodes/200 cm3 soil) at Poomparai followed by moderate (50-150 nematodes/200 cm3 soil) at Poondi, Kookal, Mannavanur and Shenbananur villages.