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: Cherry Witches' Broom symptoms on leaves
Photo by: R.S. Byther
  
Cherry : Witches'-broom (Cherry leaf curl)
(revision date: 5/20/2014)


Biology
Witches'-broom disease of cherry is a fungal disease similar to peach leaf curl. Infected branches develop large, dense, broomlike tufts of foliage. These branches typically do not produce flowers or fruit, making them particularly conspicuous during bloom. The leaves are discolored (red to brown), thickened, and curled or puckered. Whitish fungal growth may be present on the underside of curled leaves. Diseased leaves occur both in witches'-brooms and on normal branches. Diseased branches do not recover.
Management Options

Non-Chemical Management
  • Cut out witches'-brooms at least 12" below lowest infected point.
Select non-chemical management options as your first choice!

Chemical Management

None recommended

Images

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Caption: Cherry Witches' Broom symptoms on leaves
Photo by: R.S. Byther
Caption: Cherry Witches' Broom symptoms on leaves
Photo by: R.S. Byther