Symptoms can vary from small fruit to discolored and misshapen fruit.

All common commercial varieties are susceptible to Little cherry virus 1 and 2 and X-disease phytoplasma.

Symptom severity is related to the level of infection in the tree. New infections may not be visible.

     Bing                Early infection >>>>> Established infection  

    Cristalina      Early infection >>>>> Established infection  
 

 After 1-2 years, infections generally have visible symptoms but may express as only a few small affected clusters on one or two limbs.

As the pathogen builds up in the plant, symptoms become more severe with small fruit clusters throughout the tree.

    Rainier           Early infection >>>>> Established infection

    Santina          Early infection >>>>> Established infection