How to Control Wild Onion
Wild onion (Allium canadense) is a member of the amaryllis family, and a common turfgrass weed. Known as a bulbous herb, wild onion can grow up to 2 feet tall and comes back year after year if not controlled. The best way to control small stands of wild onions is to dig them up. For larger infestations, several applications of herbicide are required. Apply the first application in November. Does this Spark an idea?
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Instructions
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Mow the lawn before applying the herbicide. Wild onion has a waxy outer coat that resists herbicide penetration. Mowing the lawn prior to the application roughs up the coating, allowing for better penetration by the herbicide. Don't mow the lawn again for two weeks after applying the herbicide.
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Fill the sprayer tank with the herbicide, at the rate recommended on the package. Add the suggested amount of water to dilute the concentrate in the tank sprayer. If you are using a hose-end sprayer, attach the sprayer to the hose.
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Apply the herbicide to the infested area that is the farthest away and walk backward, spraying the herbicide in a wide, even arc. Spray until the area is completely drenched with the herbicide.
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Water the area one day after applying the herbicide, unless the manufacturer's instructions state not to do so.
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Repeat the application in early spring and again in November.
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Tips & Warnings
Complete eradication may takemore than one year.
Herbicides may contain chemicals that are toxic. Read and follow all manufacturer's instructions and warnings and wear a breathing mask and protective clothing during application.
Don't apply the herbicide to warm-season grasses in the spring when they are coming out of dormancy. Avoid getting the spray on the root zone of desirable ornamentals.
