Verticillium

Pest: Verticillium wilt (Verticillium spp.)

Pest Type: Infectious disease, fungi

Major Identifying Features: Older lower leaves with Verticillium wilt turn yellow and wilt, yellowing usually occurs between major veins of leaves, water-conducting tissues of the stems and roots become black

Life Cycle: Verticillium grows under moist and cold conditions

Pest Rating: Minor to moderate

Management Rating: Easy to moderate

Host/Season/Outbreak Information: Cool soil temperatures favour infection and disease symptoms develop, symptoms are more prevalents in late summer and fall crops

Damage Information: Growth of a plant can become stunted

Management Options: Cultural measures by sanitation and planting resistant cultivars, by planting pathogen free plants, by planting in disease free soils (solarization), by keeping plants vigorous

Sources:

http://www.ipm.ucanr.edu

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