Dogwood - Disease information and Management Recommendations. +
HOST PLANT DISEASE SYMPTOMS MANAGEMENT
Dogwood 
Cornus spp.
Leaf spot, 
Septoria sp.
Initially appears as small angular, rusty brown spots which turn tan or gray. Severe infections cause defoliation. Promote plant health. Remove infected plant material. Avoid overheard watering. Provide good air circulation.
CHEMICAL: Bordeaux, chlorothalonil, thiophanate-methyl, or zyban.
These pages some times contain pesticide recommendations. Changes in pesticide regulations occur constantly, some materials mentioned may no longer be available, and some uses may no longer be legal. All pesticides distributed, sold, and/or applied in the USA must be registered with the appropriate State Department of Environmental Conservation (DEC). Questions concerning the legality and/or registration status for pesticide use in the USA should be directed to the appropriate State Cooperative Extension Specialist or your regional DEC office. 

READ THE LABEL BEFORE APPLYING ANY PESTICIDE.