Weeds Weeds can take up to 50 percent of water and nutrients away from the grass and crowd it out. Mow your lawn high, so that over time grass will shade out weeds. Then, water and fertilize to maintain a healthy turf. Or spray a selective herbicide that kills weeds but not grass.
Insects also can weaken plants, allowing diseases to move in.
Watch closely for telltale patches of brown or wilted grass. Weed Identifier Select a weed from the list below to find your problem weed and what to do to eliminate it. Yellow Nutsedge Yellow Wood Sorrel Disease Identifier Select a disease from the list below to find your problem disease and what to do to treat it. All Rights Reserved. Please read our legal notice and Privacy Statement.