TY - JOUR AU - Schnathorst, W. C. AU - Sibbett, G. S. TI - T-1 Verticillium strain …a major factor in cotton and olive wilt JF - California Agriculture JO - Calif Agr Y1 - 1971/07/01 VL - 25 IS - 7 SP - 3 EP - 5 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v025n07p3a AB - Isolations of Verticillium albo-atrum from olive trees in Tulare County indicated that the T-l strain was most often associated with severe verticillium wilt in Manzaniilo and Sevillano varieties. T-l was also associated with severe wilt in Acala cotton in Tulare and several adjacent counties. The SS-4 strain, which causes only mild symptoms in Acala cotton varieties, was isolated from olive trees and was a relatively mild pathogen in the Manzanillo olive variety. These results indicate that the T-l strain is a major factor in the severe wilt problem in both cotton and olives in Tulare County.