I'm growing a thornless blackberry bush for the first time and some of the leaves have dark purple spots on them, and the leaves on the bottom are starting to turn yellow and fall off. I was wondering if anyone knew what kind of virus this was so I could properly treat and hopefully save my bush
I'm growing a thornless blackberry bush for the first time and some of the leaves have dark purple spots on them, and the leaves on the bottom are starting to turn yellow and fall off. I was wondering if anyone knew what kind of virus this was so I could properly treat and hopefully save my bush