sooby said:If it is mostly the tips wilting have you checked inside the canes for borers? There's also a raspberry crown borer that causes them to wilt from lower down the cane.
Edited to add, from this U of Maryland Extension looks like both occur there:
https://extension.umd.edu/grow...
Thank you. I'll take a closer look again, maybe I'll spot the bugs -- now I know what they might look like.
Hi, Happy 4th everyone!
I checked -- didn't find any bugs, or larvae, but part of the problem are definitely Raspberry Cane Borers. From what I read no treatment is recommended, just trimming of the canes down to healthy wood. (Those borers sure do a lot of damage, though.)
But there's something else going on -- maybe Crown Borers, maybe Redneck Borers -- lots of canes have wilted and died.
Is there anything I can/should do, any kind of treatment? Maybe some kind of natural spray, without chemicals?
Thank you so much,
Sasha
