Diquat Water Weed and Landscape Herbicide
By Melanie on 04/22/2013
Used to strip spray weeds in an orchard. Burn can be seen within 24 hours. Does a better job and lasts longer than 20% vinegar which costs nearly 4 times as much and tends to eat away metal and plastic parts to my spray rig, even after thorough rinsing. Diquat won't kill some harmful bugs like agricultural vinegar will. At 2 qts per 100 gal water, diquat concentrate will go a long way. It's a general dessicant, so you have to be careful where the spray hits. It doesn't harm the roots or destroy beneficial soil fungi like glyphosphate. It's not a pre-emergent, so you'll see your turf come back. It's good to knock out weeds in their flowering stages, hold them down, until slower growing grasses have a chance to get established. Using it to work out a good ground cover between tree rows. So far, clovers are spreading.
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