Signs of potato blight

Colman O\’Reilly asked 12 years ago

I have what appears to be a good healthy crop of Record potatoes. However on closer inspection quite a few of the leaves have little holes in them and the outer tips of same are discoloured with a dark blue/purple tinge.I have already sprayed them with Dithane 945 approx. a couple of weeks ago and intend to do again now.Should I be concerned ?

1 Answers

Gerry Daly Staff answered 5 years ago
Potato blight does not cause holes, it causes brown rotten spots with a white fungal growth on the underside.

Small holes are not significant.

Spray when there are Meteireann blight warnings.