Neonectia Canker

Neonectia canker affects noble fir and other conifers in the Pacific Northwest. Sunken lesions appear on stems and branches, potentially girdling and killing affected limbs. Prune out infected branches at least 12 inches below visible symptoms. Disinfect tools between cuts to prevent spread. Keep plants healthy and avoid wounding, as wounds provide ideal infection sites. Canker management requires prompt removal of infected branches and careful attention to tree health and vigor.

Prune out cankered branches at least six inches below visible symptoms, making cuts into healthy wood. Sterilize your tools between cuts. Canker pathogens typically enter through wounds, so minimize pruning injuries and avoid working on trees when bark is wet. Maintain tree vigor through proper watering and avoid stress from drought or compacted soil, which makes trees more susceptible.