Apple scab is a fungal disease most common in areas of relatively high rainfall and relative humidity. However, scab outbreaks such as those that occurred in the early 1980's indicate that persons ass

Apple scab occurs wherever apples are grown and is one of the most serious diseases of apple and ornamental crabapple trees. Disease development is favored by wet, cool weather that generally occurs i

Vaillancourt, L.J. and J.R. Hartman. 2000. Apple scab. The Plant Health Instructor. DOI: 10.1094/PHI-I-2000-1005-01 Updated 2005. DISEASE: Apple scab PATHOGEN: Venturia inaequalis HOSTS: App

Apple Scab is a common landscape tree disease due to the popularity of the Crabapple tree. Although Apple Scab will not directly kill a Crabapple tree it can weaken the tree thereby making it suscepti

I. Introduction: Apple scab is of major economic importance in the mid-Atlantic region. If not controlled, the disease can cause extensive losses (70 percent or greater) where humid, cool weather occu

How to Spot Apple scab disease Video Copyright © 2011 5min Ltd. All Rights Reserved.