
Verticillium wilt on alfalfa
Description: Symptoms
usually do not become obvious until the third year after seeding. Affected plants
are scattered throughout a field. Upper leaflets turn yellow or pink and often
curl or twist. Stems are stunted but remain erect.
Location: Verticillium wilt has been found in 17 counties in central and
northeastern Ohio. It has not been reported south of Interstate 70.
Time of Attack: Verticillium wilt usually spreads within a field and to
neighboring fields on infested harvesting equipment. Infection can occur throughout
the growing season.
Management:
· Resistant varieties