A1990, Lawn Weeds-Lawn weed prevention and control资料.pdfVIP

A1990 Lawn weed prevention and control J.C. Stier and R.C. Newman Weeds invade lawns in a number of ways. Weed seeds Proper herbicide use are present in most lawn soils, and some weed seeds may Herbicides are available that will control most lie dormant for years before germinating. Weed seeds also common lawn weeds. But they must be used correctly and may be brought in with topsoil, mulches, and manure, or combined with good lawn management for successful carried in by wind and water. In addition, some lawn seed weed control. mixtures contain seeds of perennial grasses such as tall 1. Read herbicide label directions and follow them exactly. fescue and bentgrass, which are weeds in bluegrass lawns. This is the law! The best defense against weed invasion and takeover is 2. Do not apply herbicides to nontarget plants or on hard a dense stand of perennial turfgrasses. Vigorous turfgrasses surfaces such as sidewalks and paved driveways. successfully compete with weeds for light, moisture, and 3. Apply liquid formulations on a calm day to avoid soil nutrients. Good lawn management will encourage herbicide drift. vigorous turfgrass growth.