Essential Oils as Potent Source of Nematicidal Compounds

Bioassay tests were conducted to _nd out the nematicidal activity of eight essential oils against Meloido`yne inco`! nita "Kofoid and White# Chitwood at four concen! trations[ Maximum activity was recorded in oils of Eucalyptus citriodora\ Eucalyptus hybrida and Ocimum basilicum followed by Pelar`onium `raveolens\ Cym! bopo`on martinii\ Mentha arvensis\ Mentha piperita and Mentha spicata oils\ respectively[ The eucalyptus "E[ citriodora and E[ hybrida# and Indian basil "O[ basilicum# oils were highly toxic to M[ inco`nita even at the lower concentrations\ namely 499 and 149 ppm[ The remaining oils were also toxic to the nematode but at di}erent amounts[