Why Wont Those Pesky Weeds Die

Why Wont Those Pesky Weeds Die

Are you on your last straw with obnoxious weeds that just won’t go away? Have you tried everything from a soap and vinegar solution to wishing them away? Well there could be some critical mistakes that you or your lawn care company are making concerning weed management practices.

1. Resilient Weeds

Some varieties of weeds are just downright tough to get rid of. Such varieties can have features including waxy leaves, hairs, or extensive root systems when compared to other weeds, making them more resistant to basic weed control. Successfully eliminating these types of weeds may require repeat applications, additives to spray mixtures, and an annual schedule of herbicidal products throughout the year. 


2. Read the Label!

The proper rate at which to mix your herbicide is located on the label, so make sure to follow those directions exactly. A solution too strong or too light will cause the herbicide to be less effective or cause damage to your lawn. Remember to only store mixed solutions for a short period of time and to agitate them before use to ensure the mixture is properly blended. 


3. Broadleaf vs. Grassy Weeds

Selective herbicides work by controlling specific types of weeds while not damaging turfgrass. Many of the weeds growing in lawns belong to a category called broadleaf weeds. Among these include: Dandelion, Clover, Oxalis, Violets, and Chickweed. Another group of weeds found throughout lawns are called grassy weeds. Among these include: Crabgrass, Nimblewill, Nutsedge, and Bermudagrass. Identifying which group of weeds are invading your lawn is a crucial step in controlling them; choosing the wrong type of weed control will render the product ineffective. Furthermore, your results may vary depending on the specific weed. For help identifying which weed may be invading your lawn, check out our previous blog post on common weed types found in Florida here. Experience with a range of herbicides is the surefire way to know the effectiveness of the product for your situation. 


4. Poor Timing

If it’s too cold, hot, or dry, weed control results will be lackluster. Most products are absorbed by weeds and translocated throughout the plant for the highest rate of efficacy. When plants aren’t internally transporting water and sugars, they also aren’t transporting herbicide. Be sure to avoid applying herbicides before a rainstorm. Most solutions need at least a 30-60 min drying period prior to rain to work. Be sure to also read the label for the safe time to mow again after application. 


5. Soil Condition

A variety of weeds flourish in compacted, waterlogged, and low pH soil. Grass on the other hand, will struggle to grow in these conditions. Under these circumstances, weeds will begin to fill in the spots that grass fails to thrive. A core aeration should be done to lawns experiencing these symptoms to alleviate the problem. A soil test should also be taken to determine the proper applications to apply to the soil to return its pH to neutral or slightly acidic. Check out our previous blog post for information


6. Thin Lawn

The best defense against a weed invasion is a thick, lush lawn. Many issues may be causing a thin lawn (thatch, disease, insects, etc), which in turn will give the weeds plenty of room to move in. In the war against weeds, offense is the best defense. Avoiding these 6 issues can lead to a healthy lawn that prevents weed growth. The thicker your lawn - the less weeds there will be, period.