06-09-2015, 11:19 PM
Maddog wrote:
You can kill the blackberries with a herbicide called Crossbow. This is also the only thing I have had luck with killing poison oak and thistles with. However, even when they die back, you still have a big job with clearing all the ugly dead canes. Blackberries are masters of finding hidden water supplies and spreading.
I've seen other recommendations for this product. A concentrate gallon jug on Amazon is about $68 shipped but it makes 32 gallons. I think I will give it a try.
northern california coast