Reniform and root-knot nematodes continue to be major problems in all cotton producing areas in the state.
Reniform nematodes are the biggest threat, particularly in central and south Alabama.
No new nematode infestations were found in 1998, according to soil samples submitted to the Plant Diagnostic Laboratory. Nematode populations in north Alabama were generally low as a result of the extremely dry weather. These were first reported in 1990 - 1992 survey data. Columbia lance nematodes were first discovered in Autauga county in the central part of the state in 1992. No new infestations of this species have been found in the state in recent survey activities.