mattyc
Member
These black spots showed up about two weeks ago on my Marquette berries in my small vineyard in Central MN (near Twin Cities).
Anyone have any thoughts on what this might be? It doesn't seem to be getting any worse.
I dealt with a little bit of black rot last year, but was better prepared this year. I've pretty much followed this Ohio State paper for my black rot treatment... Mancozeb once a week from the time the shoots were 3-5" to 3-4 weeks post-bloom.
I sprayed Sevin and I think one shot of Malathion for Japanese Beetles as well.
Also dealt with frost that killed probably 10% of shoots in mid-may.
Closest thing I can find is this picture of Pesticide Spray Injury partway down the page where it compares antracnose to pesticide spray injury.
Thanks!
Anyone have any thoughts on what this might be? It doesn't seem to be getting any worse.
I dealt with a little bit of black rot last year, but was better prepared this year. I've pretty much followed this Ohio State paper for my black rot treatment... Mancozeb once a week from the time the shoots were 3-5" to 3-4 weeks post-bloom.
I sprayed Sevin and I think one shot of Malathion for Japanese Beetles as well.
Also dealt with frost that killed probably 10% of shoots in mid-may.
Closest thing I can find is this picture of Pesticide Spray Injury partway down the page where it compares antracnose to pesticide spray injury.
Thanks!