Most granular preemergence herbicides should be watered in with about ½ inch of irrigation water immediately following application. This activates the herbicide, which is absorbed by the young roots of weeds as they begin to grow.
Common dandelion (Taraxacum officinale) seeds blow in the wind and allow this perennial weed to become a frequent invader of home lawns.
Joey Williamson, ©2015 HGIC, Clemson Extension
Control with Herbicides
The main reason homeowners want to rid their lawn of weeds is that they are aesthetically disruptive. In other words, weeds are ugly and interrupt an otherwise uniform appearing lawn. Weeds are also fierce competitors and will rob the turf of sunlight, nutrients and moisture. Lastly, weeds have a tendency to spread rapidly. A few left uncontrolled can quickly become a serious problem.
If this document didn’t answer your questions, please contact HGIC at [email protected] or 1-888-656-9988.
Postemergence Herbicides: Postemergence herbicides target visible weeds. They are used primarily against broadleaf weeds, perennial grasses, and sedges. The chemicals 2,4-D, dicamba, mecoprop (MCPP), MCPA, carfentrazone, and triclopyr are broadleaf herbicides. They have been combined in many products that control many broadleaf weeds. Always check the product label to be sure that it can be used safely on a tall fescue lawn, that it will control the specific weeds in the lawn, and that it will be used at the correct rate. With many products, repeat applications in 10 to 14 days may be necessary for difficult to control weeds. For triclopyr, a repeat application may be needed in 4 weeks on some weeds.
Preen One Lawncare Weed and Feed is for lawns that have weeds that are already growing. It contains post-emergent, so you can apply it to your lawn up to 30 days after you notice the growth of crabgrass. This product also kills dandelions, white clover, and approximately 250 other types of broadleaf weeds. It kills the weeds to the root, leaving your entire lawn weed-free for quite some time.
You can also test your soil for the micronutrient content. This ensures that the fertilizer that you choose has the best nutrient diversity for your lawn.
2) Preen One Lawncare Weed and Feed
While preventing weed growth, this product also greens, strengthens, and feeds the grass on your lawn. It is ideal for a number of lawn types, especially southern turfs, such as Saint Augustine grass, zoysia grass, Bermuda grass, and centipede grass.
If you’re looking for a weed and feed for a Southern Lawn, it really depends on your grass type. Southern lawns tend to have warm-season grasses, which include Bermuda, Bahia, Centipede and St Augustine varieties. The safest option for Southern Lawns is Scotts Triple Action for Southern Lawns.
Spring is here, and it’s time to start thinking about weed and feed.