blackberry orange rust

Symptoms

Bright orange waxy pustules on leaf undersides in late spring, distorted + dwarfed shoots from infected crowns, complete inhibition of flowering on infected canes, plants live but never fruit usefully.

Plants affected

• blackberry

Common questions

How do I recognise blackberry orange rust on blackberry?

Bright orange waxy pustules on leaf undersides in late spring, distorted + dwarfed shoots from infected crowns, complete inhibition of flowering on infected canes, plants live but never fruit usefully.

Do I have to report blackberry orange rust?

No. blackberry orange rust is not a notifiable organism, so there is nothing to report to an authority. Treat it as a normal garden problem.

How is blackberry orange rust 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.