Eola Rasp Leaf (Yellow Bud Mosaic)
Eola rasp
36 host plants
Last updated
This profile contains verified disease data from extension databases. Regional field notes and expert review are in progress.
Eola rasp leaf and yellow bud mosaic cause leaf distortion and yellowing. You see abnormal foliage and bud damage. The virus reduces tree vigor and production. Remove infected trees if virus burden is significant.
There is no cure for viral diseases. Remove and destroy infected plants to prevent spread to healthy ones nearby. Many viruses spread through insect vectors like aphids and leafhoppers, so managing those populations helps slow transmission. When replacing removed plants, choose virus-resistant varieties if available and purchase certified virus-free stock from reputable nurseries.
Quick Reference
Management
Infection occurs when dagger nematode vectors feed on roots of susceptible plants. Young tree plantings on infested soil are vulnerable immediately upon planting. Symptoms typically appear 2-3 years post-infection as nematode populations establish and spread virus throughout root system. Spring emergence shows characteristic enations and vein distortion most visibly. Once established, trees remain infected for life with progressive decline in productivity and vigor. Source: PNW Plant Disease Management Handbook
Symptom expression depends on cherry cultivar and nematode vector presence in soil. Susceptible cultivars (Royal Ann, Rainier, Bing) show characteristic leaf rasping, vein distortion, and enations. Trees with heavy dagger nematode populations show more rapid symptom development. Secondary infections from nematodes feeding on infected roots perpetuate virus in the tree. Cooler soil conditions may slow nematode activity and virus spread. Source: PNW Plant Disease Management Handbook
Cultural Controls
- Remove diseased trees.
- Pre-plant soil fumigation to manage dagger nematode vectors.
- Plant certified, virus-tested (and found to be free of all known viruses) nursery stock.
- References Hadidi, A., Barba, M., Candresse, T., and Jelkmann, W. 2011.
- Virus and Virus-like Diseases of Pome and Stone Fruits.
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