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Resources for Little Cherry & X-disease Scouting and Sampling 2022

Multiple resources are available for scouting and sampling of X-disease and Little Cherry disease during the 2022 season.

X-disease and Little Cherry Virus Scouting and Sampling Guide

New App for Little Cherry and X-disease Symptom and Insect Scouting

To download the App search for ‘Little Cherry Scouting Guide’ in your App store. Or for an apple version click here or for Android version click here.

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

Corina Serban, WSU Extension (509) 574-1595

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