Organic Weed Killer Greenville SC
New, Natural Weed Killer
Summertime means weeding time for most gardeners. While the old methods of hand pulling and hoeing are still the most effective, sometimes you'd just like to spray those weeds to get rid of them. This is especially true of weeds in a sidewalk, patio, or driveway, where they can be hard to dislodge. If you're leery of using chemical herbicides, there are several organic herbicides worth trying.
One of the newest products is Perfectly Natural Weed & Grass Killer, which uses two well-known organic weed killers: clove oil and vinegar. This fast-acting (dieback begins within 1 hour after spraying) formula is safe for the environment and effective on a range of weeds, such as dandelions, clover, chickweed, plantain, and annual bluegrass. Perennial weeds require a repeat application in 3 to 5 days. The product comes in two ready-to-spray sizes so there's no mixing.
For more information on this new 100 percent organic Weed & Grass Killer, go to: Perfectly Natural .
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Trials of the Best Organic Weed Killers
by Charlie Nardozzi
Organic gardeners often struggle to control annual weeds in their gardens. While there are many organic products on the market touted as helpful in controlling weeds, there has been little research testing them against each other.
Researchers at the Organic Farming Research Foundation and Purdue University tested four different organic weed control sprays, plus flaming with a hand-held flamer, on seedbeds to be planted in greens. Weeding greens and lettuce beds can be very time consuming, especially for organic growers, so finding an effective alternative to reduce weeds will save growers time and money. Researchers tested Burnout II (contains acetic acid), Matran 5 (contains clove and other essential oils), 10% vinegar solution, 13% vinegar solution, and an LP gas hand-held flamer. They were particularly focused on controlling chickweed, purslane, galinsoga, and grasses. Seedbeds were tilled and allowed to sit for 2 weeks so the weeds could germinate. Three applications of each treatment were made on the 3' by 5' test beds in May, June, and August.
It turns out organic sprays weren't the best solution. Although Burnout II reduced the weeding time the most overall, the hand-held flamer was more convenient to use and more effective in controlling tougher weeds, such as grasses and purslane. Matran 5 was the next most effective weed killer. All treatments worked best if the weeds were treated when less than 4 inches tall.
Weed Control from the Pantry
by Skip Richter
Gardeners looking for a safer option for controlling weeds may now have just what they need - right in their own pantries. USDA researchers in Beltsville, Maryland, found that vinegar killed 80 to 100 percent of several major weed species, including common lamb's quarter (photo at right), Canada thistle, smooth pigweed, velvetleaf, and giant foxtail. It kills the top growth, so repeat applications are needed for perennial weeds. Nevertheless, the safety and effectiveness of vinegar holds great promise for gardeners wanting to reduce dependence on chemicals for managing weeds.
Researchers tested vinegar at concentrations of 5 percent and 10 percent. Both killed weeds less than 2 weeks old, but older weeds required higher vinegar concentrations, such as 20 percent. (Household vinegar is approximately a 5 percent concentration.)
BurnOut Weed & Grass Killer is one of several commercial products that feature vinegar as their active ingredient. You can order BurnOut from Planet Natural or the Biocontrol Network.