Quote:
Originally Posted by microfarmer
... I keep trying to kill the blackberries travelling from the neighbor's yard.
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Get some concentrated Glyphosate (40% to 50%), sold inexpensively as "Remuda" or expensively as "Roundup". Some Ag stores also sell it by the metal drum.
1. Paint the blackberry vines (or poison oak, ivy vines) with it, but
2. Put down a rag or drop cloth so it doesn't drip on the ground.
Give it a few weeks to take full effect.