WSU Extension

Hortsense

Cherry
 
Disease
Armillaria root rot 
Bacterial canker 
Black knot 
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: Little cherry virus symptoms
Photo by: OSU slide library
  
Cherry : Little cherry
(revision date: 5/20/2014)


Biology
Little cherry is caused by a virus transmitted by the apple mealybug and by grafting. Affected trees show symptoms primarily on the fruit, which may be smaller than normal, slow to ripen, and somewhat pointed or triangular. Dark-fruited varieties may not ripen past the bright red stage. Lighter varieties may have pinkish fruit. Affected fruit has a bland or rather bitter flavor. Foliage on affected trees may be lighter in color than normal trees, and growth may be somewhat reduced. Sweet, sour, and ornamental cherries may carry the little cherry virus. Fruit symptoms are mild on 'Deacon' and 'Royal Ann' sweet cherries, but severe on 'Lambert' and 'Black Republican'.
Management Options

Non-Chemical Management
  • Plant only certified virus-free stock.
  • Remove and destroy infected trees.
  • Remove infected 'Kwanzan' and 'Shirofugen' trees which carry the disease.
  • Control apple mealybug populations.
Select non-chemical management options as your first choice!

Chemical Management

None recommended

Images

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Caption: Little cherry virus symptoms
Photo by: OSU slide library