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Troubleshooting

European Hazel 'Nottingham Prolific' problems — and how to fix them

European Hazel 'Nottingham Prolific' (Corylus avellana 'Nottingham Prolific') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.

Reduced yield when planted alone

Although a strong pollen producer, it sets the best crops with a compatible second hazel variety nearby because hazels are largely self-incompatible.

Squirrel and nut weevil damage

Grey squirrels take unripe nuts and weevil grubs tunnel into kernels. Harvest promptly, net if needed, and destroy fallen maggoty nuts.

Overcrowding from heavy cropping wood

Its prolific, bushy habit can become congested. Thin and renewal-prune to keep the centre open and maintain fresh fruiting wood.

Powdery mildew in still, damp air

Dense compact growth can trap moisture and encourage powdery mildew. Prune for airflow and water at the base rather than overhead.

Prevent european hazel 'nottingham prolific' problems before they start

Most european hazel 'nottingham prolific' issues are care-mismatch, not bad luck. Dial in the basics:

Looking for european hazel 'nottingham prolific' in general rather than its problems? Read the full european hazel 'nottingham prolific' care guide — light, water, soil and feeding.

European Hazel 'Nottingham Prolific' problems — FAQ

Why is my european hazel 'nottingham prolific' reduced yield when planted alone?

Although a strong pollen producer, it sets the best crops with a compatible second hazel variety nearby because hazels are largely self-incompatible.

Why is my european hazel 'nottingham prolific' squirrel and nut weevil damage?

Grey squirrels take unripe nuts and weevil grubs tunnel into kernels. Harvest promptly, net if needed, and destroy fallen maggoty nuts.

Why is my european hazel 'nottingham prolific' overcrowding from heavy cropping wood?

Its prolific, bushy habit can become congested. Thin and renewal-prune to keep the centre open and maintain fresh fruiting wood.

Why is my european hazel 'nottingham prolific' powdery mildew in still, damp air?

Dense compact growth can trap moisture and encourage powdery mildew. Prune for airflow and water at the base rather than overhead.