![]() ![]() Also, triclopyr (whether from Crossbow or another product) can be taken up by roots, so nearby plants can be affected as well. If you use this product, keep in mind that it will kill any green vegetation it lands on. Also, the Roundup brush killer contains a surfactant, which is critical when applying to ivy due to the thick, waxy cuticle that causes water-based materials to bead up and run off. This product is similar to mixing "Roundup" (glyphosate) and Crossbow (which contains triclopyr, along with another, relatively weaker ingredient). I say this because it contains two ingredients: glyphosate and triclopyr. I don't make a habit of recommending specific products, but there is one that is likely to be more effective than the others: Roundup brand brush killer. Cutting it will weaken it, and treating only the re-growth will use far less herbicide than treating all of the growth. If there is too much for that to be practical, you may choose to cut it down and then treat the re-growth with an herbicide. If it is practical to cut and physically remove the ivy, there is a "cut vine and stump killer" product with a dauber attached to the lid such that you paint it, undiluted, on fresh cuts (must be fresh to be effective). That being said, there are other products containing similar ingredients that may be effective on ivy. You will never get rid of morning glory by trying to pull it or dig up the roots - it's better to let it grow and then poison it, roots and all (repeat as necessary).Indeed, this is a tricky question, as the label includes terms such as "Fencerow" and "Noncrop Non-Agricultural Area." To avoid any uncertainty, I called the Oregon Department of Agriculture, and they informed me that for a number of years they have been interpreting Crossbow labels as NOT including residential sites and have cited people on numerous occasions for using Crossbow on residential sites. I've got morning glory and english ivy that keep poking up, so when I see a random shoot, I let it grow so it has some leaves to spray, and then grab that spray bottle and hit it. Oh, and I keep a small spray bottle of roundup/crossbow for touchup work. If I'm spraying brushy areas, I also add Crossbow to the mix as well to kill the blackberries. I see the effect in a few days to a week, so I know that it took. Now I use the generic Roundup (40% IIRC, I buy it cheap at the farm store), and mix it about 2-3 ounces per gallon, along with some dishsoap. They confirmed that both sets of instructions were correct. So what do the instructions say for the concentrate that I bought? ONE ounce per gallon! I couldn't believe it! So I called the company and asked them. Puzzled by this, I got one of the empty pre-mix containers from my neighbor and read the instructions for refilling it: TEN ounces of concentrate per gallon. finally 3 weeks later you could see the effects. So I went out and bought Weedstop concentrate and mixed it according to the instructions. Example: My neighbor used pre-mixed Weedstop, and the weeds looked sick the next day and were dead within the week. Here's the thing with weed killers - the concentration is all over the map, even straight from the factory instructions. Works for prescription drugs, works for herbicides. If you read the labels, the weed killer in weed-n-feed is 2, 4 D. This information is gathered over 60+ years experience (I'm 80), and may not be up-to-date, but works for me. I've tried rock salt and wasn't impressed. ![]() It comes in a pelletized form and I spread it by hand (feeding the chickens). Find Crossbow Dealer Locator Killer Instinct Crossbows Address / Zip Within Looks like you turned off Store Locator Plus® Maps under General Settings but need them here. If you aren't in a hurry to see plants die, it will kill existing plants and prevent growth for over a year, in my experience. All this addresses existing weeds.įor prolonged weed prevention, I use monobor chlorate, not available in all states. ![]() A surfactant (soap) will increase effectiveness. Actually, the banned 2, 4, 5 T (agent orange) is more effective but, obviously, not available. Glyphosate alone is not so effective against blackberry and other vines, 2,4 D is (brush killer). I've heard (from a farmer friend) mixing glyphosate at over recommended dilutions actually diminishes its effectiveness. al.), mixed in at or near the recommended dilutions to kill existing plants around the mail box post, fence bottoms, driveway cracks, etc. ![]() I use a combination of glyphosate and 2,4 D (read Crossbow, et. Crossbow is a broadleaf plant killer and won't kill narrow leaf (read grass) plants. ![]()
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