Lawn Care - Knowledgebase Question

Trenton, NJ
Question by latoniahagl
June 28, 2007
This is my first home. I used round up on my lawn for weeds and now it looks like it's burned. How can I get it back to normal? Also, what do I use for the weeds that are growing on my lawn

Answer from NGA
June 28, 2007


Unfortunately, the product you used contains glyphosate as the active ingredient. This is a nonselective herbicide meaning it will kill all plants including lawn grass, not just the weeds you want to kill. You will need to reseed the bare spots.

The best defense against weeds is a healthy turf. Correct mowing keeps the lawn grass dense and helps it crowd out weeds. Mow to a height of three inches; mow often enough that you do not remove more than one third the grass height when you cut it.

Next, run some basic soil tests to check fertility and soil pH. Use the soil test results to know how much to fertilize and if you need to add lime as well.

Healthy lawn can crowd out many annual weeds and some perennial weeds over time. Perennial weeds can be spot treated with glyphosate, or dug out by hand. Your local county extension can help you with the soil testing and interpreting the results as well as help develop a lawn care plan for your yard.

You may also find the following lawn care information helpful.

Good luck with your lawn this summer!

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