Stunt (Dilly)

This condition affects hazelnut (Corylus avellana) but specific symptoms, causal agents, and management strategies remain undocumented. Minimal information prevents detailed assessment of its importance to PNW hazelnut growers.

Remove affected material as you find it and clean up any fallen debris where stunt (dilly) spores can overwinter. Improve air circulation around susceptible plants through selective pruning. Avoid overhead irrigation during vulnerable growth periods. If the problem is persistent, your local Extension office can recommend current fungicide or bactericide options for your specific situation.