Q How do I recognise blackberry cane spot?

A The stems, and occasionally the flower stalks and leaves, develop purple spots with pale-silvery centres. As the spots increase in size, the bark might split and the entire stem may then die back.

Caption: Prune out stems affected by blackberry cane spot as soon as you see symptoms

Q How can I help plants affected by blackberry cane spot?

A Prune out any infected or suspect stems promptly, regardless of the time of year. Always water at the base of the plant and try not to get the leaves wet. Keep plants well watered, fed and mulched to encourage new growth to replace any canes that have to be removed.

Q How can I prevent blackberry cane spot?

A Avoid getting the leaves wet when watering, as this may increase the risk of cane spot developing.