Why have my raspberries got purple patches on the canes?
Posted by Dobies Staff on 15 December 2014 11:17 AM
|
|
Raspberry spur blight is a fungal disease that mainly affects raspberries but can also occasionally attack loganberries. It most frequently occurs in wet seasons but can appear in any year regardless of the weather pattern. Attacks are more likely to occur if the canes are overcrowded or fertilizers high in nitrogen have been used. Unwanted new canes should be thinned out in spring.
| |
|