Brian from West Palm Beach, Fl writes
I'm currently using Cornerstone, but some of the weeds just laugh at it and me. I'm mixing it to use with a pump-up hand held sprayer at almost double the recommended strength. Just trying to keep weeds out of flower beds mainly.
Diquat is a great herbicide and can be used in landscape areas in addition to its primary use of aquatic weeds in ponds/lakes, however you would need to be careful when you spray it as it would be a non selective and could harm the desirable plants around it. Using a pre emergent like Snapshot or Surflan in spring and fall to prevent weeds from coming up in landscaping and flower beds is the best option. For broadleaf weeds coming up in a flower bed you could use anything like Diquat or Roundup to spot treat, and for grassy weeds a product like Grass Out Max can actually be sprayed over the top of most flowers, ornamentals and vegetables to rid the areas of unwanted grasses.
Answer last updated on: 05/09/2017
