Roundup spraying - Knowledgebase Question

McKinleyville, CA
Question by abquilts
June 24, 2010
Before I ask my last question, I want to thank you again for your advice. It makes a big difference when you have the proper information as to the correct planting.

This question is about Roundup spraying. I have a very tenacious evergreen plant in the front yard under my living room window. It has runners that go deep into the soil, and I have been digging them out. I have been clipping as I go, so I wonder if spraying them without their leaves (I cut them off), can still be as affective traveling to the roots. The roots are hard to dig up, but I want to kill the roots with roundup. Can this happen without the leaves?

This should be the last question for a while, perhaps the summer. I want to thank you again for your help, and so fast. You're great.

Alix


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Answer from NGA
June 24, 2010

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Please, Alix, don't go away! We'll miss your questions! Glad we've been helpful - feel free to drop by any time. As for your Round Up question, here's what I would do: Round Up is a contact herbicide so anything it touches will be affected. That's why you want to isolate the plant you want to use it on so nearby plants don't get overspray or have the product drift onto the leaves. Instead of spraying the plant, cut the stems just above ground level and then immediately paint Round Up on the stubs. The product will be transported down to the root system and kill the root. Do this with every sprout that's above ground. When/if new sprouts emerge, cut them and immediately paint them with Round Up. If you keep at it, you'll eventually kill the roots and the plant will no longer sprout new stems. The good thing about Round Up is that it does not move into the soil but stays in the plant and roots until it biodegrades. Hope this answers all your concerns and hope you'll stop by again soon. Happy Gardening!

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