Summer weed control and mowing tips to prevent disease

AM Show
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.
Data pix.

ST. LOUIS - Jeff Travers discusses how to control different types of weeds during the summer months and the proper technique of mowing your lawn in hot weather to prevent disease.

Broadleaf Weed Control:

  • Half a dozen different national and house brands
  • All have 3 to 5 different active ingredients
  • Virtually all of them have 2, 4-D + dicamba + mecoprop for control of broadleaf weeds
  • Quinclorac provides control of small crabgrass (look for CRABGRASS control on the label)
  • Clover control requires 2 applications 10 to 14 days apart
  • None of these control wild violet - 3 to 4 applications required
  • Don't apply in hot weather or you'll burn your turf
  • Isoxaben provides additional preemergence control of broadleaf weeds
  • Read the label!

Nutsedge Control:

  • Use halosulfuron for best results
  • Spray bottles with sulfentrazone are OK for spot strays
  • IMAGE is only safe for zoysia grass and bermudagrass
  • MSMA is only safe for zoysia grass and bermudagrass

Disease Control:

  • Brown Patch on fescue showed up in May
  • High temps and high humidity
  • Excessive summer nitrogen can cause it
  • Azoxystrobin is the BEST fungicide for brown patch
  • Apply every 3 to 4 weeks
  • Propiconazole is a good partner
  • Read the label!

If you have any lawn or gardening questions, feel free to email Jeff at

For more information, visit:

FOX 2 Newsletters

Sign up for a newsletter from FOX 2 to get updates about news and weather. We offer daily headlines, breaking news, severe weather, and forecast emails.


Latest News

More News