WSU Extension

Hortsense

Cherry
 
Disease
Armillaria root rot 
Bacterial canker 
Brown rot blossom blight and fruit rot 
Crown gall 
Cytospora canker 
Dead bud 
Gumming (Gummosis) 
Leaf spot 
Little cherry 
Mottle leaf 
Necrotic rusty mottle 
Powdery mildew 
Prunus necrotic ringspot 
Shothole (Coryneum blight) 
Verticillium wilt 
Witches'-broom (Cherry leaf curl) 
Insect
Apple-and-thorn skeletonizer 
Black cherry aphid 
Brown marmorated stink bug 
Cherry bark tortrix 
Cherry fruit fly 
Cutworms and armyworms 
Earwigs 
Leafrollers 
Peachtree borer 
Pear slug (Cherry slug) 
San Jose scale 
Shothole borer 
Spider mites 
Spotted wing Drosophila (SWD) 



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Caption: Dead bud from Pseudomonas infection
Photo by: R.S. Byther
  
Cherry : Dead bud
(revision date: 4/11/2018)


Biology
Dead bud is a common symptom caused by the same bacterium which causes bacterial cankers. Initial symptoms are death of buds on lower branches of the affected trees. This begins in February prior to leafing out. Both leaf and flower buds are affected, and spurs may be killed back. Slight gumming may occur at the base of killed buds. Repeated loss of buds can cause trees to become misshapen and have a reduced fruit yield.
Management Options

Non-Chemical Management
  • Avoid use of susceptible varieties such as 'Bing', 'Lambert', 'Royal Ann', and 'Van'. Plant less susceptible types such as 'Black Republican' or 'Mazzard'.
  • Prune out and destroy infected tissues during dry weather. Do this in the summer, when it is easiest to distinguish killed spurs. Disinfect pruning tools between cuts.
  • Cold damage may increase severity of this disease. Do not plant in cold pockets or other locations where cold injury is likely to occur.
Select non-chemical management options as your first choice!

Chemical Management

Focus on cultural controls. Apply postharvest prior to fall rains and in early January. Homeowners should not make foliar applications to trees over 10 ft tall. Consult a commercial pesticide applicator for treatment of trees and shrubs over 10 ft. tall.

Listed below are examples of pesticides that are legal in Washington. Always read and follow all label directions.
  • Bonide Infuse Systemic Disease Control
    Active ingredient: propiconazole  |  EPA reg no: 100-773-4
  • Bonide Liquid Copper Fungicide Conc/Organic Gardening
    Active ingredient: copper octanoate  |  EPA reg no: 67702-2-4
  • Soap-Shield Flowable Liquid Copper Fungicide [Organic]
    Active ingredient: copper octanoate  |  EPA reg no: 67702-2-56872
  • This list may not include all products registered for this use.
Images

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Caption: Dead bud from Pseudomonas infection
Photo by: R.S. Byther