Please, A little Help with Raspberry Plant Problem Shown in Photo

[grlight]

Hi Guys!
Turning to you again because you are able to help when Google images won't! Please see the two photos, but the plants effected are raspberries and blackberries. The initial browning along leaf continues until leaves are desiccated and dead. Sometimes entire shoot. It's driving me crazy as local extension agent and nursery did not know, which surprised me.
Thanks so much in advance!

 

[Chuck]

Hi Guys!
Turning to you again because you are able to help when Google images won't! Please see the two photos, but the plants effected are raspberries and blackberries. The initial browning along leaf continues until leaves are desiccated and dead. Sometimes entire shoot. It's driving me crazy as local extension agent and nursery did not know, which surprised me.
Thanks so much in advance!

where are you located

 

[grlight]

I'm in north central Idaho. About 3400'. Zone 5

 

[Chuck]

I'm in north central Idaho. About 3400'. Zone 5

Please update your profile so we all know where you are located. From the pics it appears that you have cane blight in both plants. The type of blight on the raspberry looks to be what is called Spur Blight. Blackberries are resistant to spur blight but still have numerous cane blights that can affect them. They are resistant but not immune and it is uncommon for a blackberry to have spur blight.

Raspberry IPM - Spur Blight

Raspberry spur blight is caused by the fungus Didymella applanata. All species of Rubus are susceptible to spur blight, but red raspberries are particularly sensitive. It is believed to have no other hosts. Life Cycle Infection occurs in early spring and is favored by wet weather. In spring...

ag.umass.edu

 

[grlight]

Please update your profile...

Done.
Chuck, thanks for the information. FWIW, I am actually in Zone 6A or 5B. I will follow up on those blights you mentioned. Really appreciate the insight.