Walker, J. C.

1893

• Plant pathology
• Cabbage-seed treatment
• Onion diseases and their control
• Seed treatment and rainfall in relation to the control of cabbage black-leg
• Diseases of cabbage and related plants
• Diseases of vegetable crops
• Fusarium wilt of tomato
• Observations on the cultivation and diseases of cabbage and onions in Europe, 1922
• Plant pathology
• Yellows-resistant cabbage varieties in the Danish Ballhead-Hollander group
• Yellows-resistant varieties of cabbage in the early and midseason roundhead groups