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Resources for Little Cherry & X-disease Scouting and Sampling 2021

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Multiple resources are available for scouting and sampling of X-disease and Little Cherry disease during the 2021 season.

X-disease and Little Cherry Virus Scouting and Sampling Guide*

*A new App is under construction and we hope to have it out by June 15. We still have some hard copies available. Contact us to have them sent to you.

Symptoms Gallery

Vector Gallery

Symptoms and Sampling Videos

Scouting and Sampling for Little Cherry Disease

Where to send samples

Resource pages

X-disease phytoplasma

Little cherry virus

Resources in Spanish

Fitoplasma X (Western X) Harper, Northfield, Nottingham, DuPont. Traducido Bernardita Sallato, April 2021 

Virus de la Cereza pequeña (LChV) Harper, Bixby Brosi, Beers, DuPont. Traducido Bernardita Sallato, April 2021

Enfermedad de la cereza pequeña en cerezos. Video. B. Sallato.

X-disease and Little Cherry Virus Scouting and Sampling Guide*

Síntomas de Fitoplasma X y Little Cherry Virus. DuPont, S.T., Harper, S., Wright, A., Bishop, G. June, 2020.

Síntomas de Fitoplasma X en Frutas de Hueso. Naranjo, R., Molnar, C., DuPont, S.T., Harper, S. Oct, 2020.


Additional resources

X-Disease Phytoplasma (Western X)

Little Cherry Virus

Grape Mealy Bug

Apple Mealy Bug

BMPs for tree removal for X disease and Little Cherry Virus infected trees

Cherry Prunus spp. X-Disease


Tianna Dupont, WSU Extension (509) 293-8758

Bernardita Sallato, WSU Extension (509) 439-8542

Ashley Thomson, OSU Extension (541) 296-5494

Karen Lewis, WSU Extension (509) 760-2263 articles may only be republished with prior author permission © Washington State University. Republished articles with permission must include: “Originally published by Washington State Tree Fruit Extension at” along with author(s) name, and a link to the original article.



Washington State University