WITHCES' BROOM DISEASE INVESTIGATIONS 1. Seasonal Variations in Intensity of Infection and their Effect on Control Methods Authors R. E. D. Baker Reader in Mycology, Imperial College of Tropical Agriculture S. H. Crowdy Reader in Mycology, Imperial College of Tropical Agriculture C. A. Thorold Plant Pathologist, Department of Agriculture, Trinidad Downloads Requires Subscription PDF Issue Volume 18 Number 6 Section Research Papers