Resolva Lawn Weed Killer Is Ideal For: Controlling Broad Leaved Garden Weeds Including Buttercup, Daisy, Dandelion & Plantain. It Also Gives Moderate Control Of Docks, Nettles, Ragwort & Thistles.when To Use Resolva Lawn Weed Killer: It Is Best To Apply Resolva Lawn Weed Killer On A Calm Day When Weeds Are Small But Actively Growing & Have A Large Leaf Area To Absorb The Weed Killer Spray. If It Rains Within 6 Hours Of Applying The Weed Killer Then This Could Reduce Its Effectiveness & You May Need To Treat The Weeds Again.resolva Lawn Ready To Use Weed Killer Contains Dicamba, Mecoprop-p & Mcpa, Resolva Lawn Concentrate Weed Killer Contains Dicamba, Mecoprop-p, Mcpa & 2, 4-d. Use Plant Protection Products Safely. Always Read The Label & Product Information Before Use.ideal For Spot Treating Broad Leaved Garden Weeds In Your Lawn Or Grass Paddock.systemic Action To Ensure Total Weed Control.kills The Weed Not The Lawn.