|How do I get rid of trumphet vine? I've tried everything (Round up/Ortho etc.) Please help,worried about foundation of home and driveway.|
Your first option is to dig them up which is a lot of work and requires coming back to get what you missed the first time. Spraying is another option. Woody vines are not easily controlled with most over the counter sprays, especially if they are diluted into a ready to use product. You can spray the foliage with a general purpose product like glyphosate (Roundup and Kleenup are examples), but you need to purchase the concentrate (41% glyphosate) and mix a 10% spray. The product works best on actively growing plants and especially in late summer to early fall as the plant is getting ready to go into winter. Another ingredient that will work even better with some species is triclopyr (often sold as Poison Ivy Killer or Brush B Gone).
However the foliage is often not accessible and other nearby plants can be damaged if these sprays contact them. Therefore stump treatments may be a better way to apply the products. You simply cut off the vines and then brush the concentrated form of one of these weed killers on the cut surface. With stump treatments or foliar spraying you may need to retreat as some plants may escape the initial treatment.
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