Tayberry

[uulwyn]

Hi all, I have posted pictures of my tayberry(blackberry) plant, but the leaves have black spots on some of them, any ideas?





Thanks

Steve

[sarraceniac]

Most common rubrus (raspberry/blackberry) viruses send the leaves a mottled yellow colour. That includes raspberry mosaic virus and raspberry leaf spot so this isn't like that. Don't worry about the fact that I refer to raspberries, the tayberry is a rasp/black hybrid which can get the same diseases.

When did this appear uulwyn? If recently it could be just a touch of the frosties, if it appeared last summer it is more likely to be caused by an aphid attack. So that doesn't occur again, then spray with any aphid killer if you use chemicals. Invest in a biological control if you don't. Either way I would take off and burn (don't compost) the infected leaves and have a good look next year when aphids appear again.

[Flummery]

There is a disease that gives leaves black spots. It's called Black Spot! (or Tar Spot). I'd pull them off too.

[uulwyn]

Hi all,

I have just noticed it after the recent frost. So should i pull the ones with black spots off? Do I need to treat it at all?

Thx for advice

[sarraceniac]

Pull off and burn all infected leaves and then watch the plant for a few weeks. If any black blotches appear then take them off as well. Do not just throw them on the ground, it is most important to burn them until we know what it is.