Weed in Blackberry patch
I have thick pine needles in my blackberry patch and cant get rid of these weeds, not sure what they are. I'm scared to spray the weeds to kill them since there so close to my blackberries and I'm tired of pulling them.
Is there a weed killer spray that won't harm my thornless blackberries? I though about lightly spraying the weed leaves to kill them at the roots and then covering them with a tarp for a week, but I'm afraid when I remove the tarp it will rain and run-off into my blackberries and kill them.