False Root-Knot Nematode
Most important species: N. aberrans
- generally not economical important
- main crop damage on potatoes in South America
- wide host range including, crucifers, chenopods, cucurbits, solanaceous
and leguminous plants
- forms galls on roots giving it the name "false root-knot"
- reproduction by parthenogenesis
Total cycle time varies from 35-90 days.
- J2 penetrates, but does not form galls
- nematodes feed on cortical tissue causing necrosis and molt to
J3 & J4
- immature females may migrate to new roots and induce syncytium
formation and galling
- females may lay eggs in a gelatinous matrix outside the root surface