Dr. Phyto

American gooseberry mildew

Sphaerotheca mors-uvae

American gooseberry mildew — Sphaerotheca mors-uvae
American gooseberry mildew · Darijanus (CC BY-SA 4.0)

Symptoms

White powdery coating on leaves + young shoots + young fruit, infected fruit turn brown + felty (the diagnostic symptom — looks like the fruit has been dipped in chocolate), shoot tip distortion + dieback, severely infected plants progressively decline over 2-3 years.

Plants affected

Treatment

Dr. Phyto builds a dated, step-by-step treatment plan with country-approved products — start a free diagnosis to get yours.

Common questions

How do I recognise American gooseberry mildew on red currant?
White powdery coating on leaves + young shoots + young fruit, infected fruit turn brown + felty (the diagnostic symptom — looks like the fruit has been dipped in chocolate), shoot tip distortion + dieback, severely infected plants progressively decline over 2-3 years.
Do I have to report American gooseberry mildew?
No. American gooseberry mildew is not a notifiable organism, so there is nothing to report to an authority. Treat it as a normal garden problem.
How is American gooseberry mildew treated?
Mainly with biological and cultural measures — removing affected material, changing the conditions that favour it, and treating with agents approved in your country. The exact steps and their timing depend on the plant, the season and where you live: Dr. Phyto works them out in a free diagnosis.
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