Ash > Trunk > Growths on branches
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Ash flower galls
- Galls first form in April or May and remain on trees during summer and through winter
- Galls are broccoli-like and green during summer and dark brown or black during winter
- The galls are distorted clumps of male flowers
- Produced by tiny eriophyid mites
- More information on Ash flower galls...
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- Damage occurs during summer
- Feeding causes foliage to yellow
- Twig and branch dieback can occur when branches are heavily infested
- Light to dark brown, elongate, 1/10 to 1/8 inch long, found feeding on branches
- Heavy infestations can completely cover bark
- More information on Oystershell scales...