Apply the herbicide during a dry period. Wait several days after your last watering and do not spray the herbicide if you may get rain four hours after application or if you expect heavy rains to follow in coming days. Water will wash the chemical away and it may not have the chance to do its job before that happens.
Black Medic also called Yellow Trefoil is an annual species so it only lives one year but it makes a lot of seeds that can remain viable for several years. It’s seeds germinate in the spring and are capable of establishing in drought-prone or disturbed soils. Black medic is a legume, meaning that it has the capabilities to fix its own nitrogen; thus, allowing it to out compete turf in nutrient-poor soils as well. These factors, in combination with its ability to tolerate low mowing heights, make black medic a common weed in lawns.
Non-organic Solution: Use herbicide before the nutsedge develops five true leaves. Leafy nutsedge has too many obstacles, preventing herbicides from sliding down to the “nuts” and the root. Herbicides work best early in the season, while nutsedge is still young and has minimal leaves.
The best way to effectively and permanently eradicate moss in the lawn is to physically remove the moss. Start by raking the area with a hard rake to loosen it. Then using the edge of a flat shovel, scrape away the moss and remove the debris. Next, top dress the area with compost and to seed it with Eco-Lawn seed. Eco-Lawn is far more shade tolerant than most turfs and will out-compete moss growth. If the affected area has heavy or compacted soil, it is a good idea to loosen the soil to a depth of at least 3 inches and re-grade to allow drainage before sowing Eco-Lawn. You can also make a spray consisting of 4 ounces of dish soap to one gallon of water and drench the moss with the solution. The moss will turn orange/brown in 24 hours and will dry up.
Non-organic Solution: Any commercial broadleafed weed killer will be effective on White Clover. Contact your local garden centre or hardware store for options in your area.
Repeated physical removal of Creeping Charlie by pulling or hard raking will, over time, prevent the Creeping Charlie from experiencing photosynthesis and thus it will exhaust its stored energy supply.
Research at Iowa State University found that borax can be used to selectively control Creeping Charlie in turf. To do so, dissolve 1 ounce of borax in 2-3 gallons of water and apply the solution uniformly over each 1,000 sq. ft. area. For small infestations dissolve 5 teaspoons of borax in one quart of water, this covers 25 sq. ft. Do not re-apply borax solutions more than once a year as borax contains boron, too much of which can be toxic to your lawn.
This perennial weed is often found in neglected lawns. It has a vigorous creeping habit as it spreads with creeping stems that take root at intervals along its way. The leaves of Cinquefoil resemble those of wild strawberry with each leaf having five heavily toothed leaflets. It produces yellow flowers with five heart shaped petals.
Broadleaf perennial with shallow, fibrous roots.