posted 5 years ago
Hey Daniel, welcome to Permies! Bummer about your berry canes, but here's what I think is going on. The first two pictures, the dark spots, looks like it could either be blight, caused by a fungus, or something called mosaic virus. The third picture, with the light colored spots, is simply called raspberry leaf spot, and is caused by a different fungus from the blight. The fourth picture shows signs of stippling, where sap sucking insects pierce the leaf tissue and suck out the juices for a meal, and it leaves a little spot or scar. This could possibly be caused by the culprit in the fifth picture, which, whoa man, is a big time spider mite infestation. I feel your pain, but I hope this info helps you out!
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht