About Crabgrass and Quackgrass
About Fertilizing
About Aeration
About Mowing and Watering
Miscellaneous Lawn Questions
Q&A About Dandelions
and Broadleaf Weeds
Broadleaf Weeds can be divided into two categories: Cool Season and Warm Season Broadleafs.
Cool Season Broadleafs, like Dandelions, Clover, Ground Ivy (Creeping Charlie), and Plantain emerge in the lawn and are actively growing in the cooler soil temperatures of the spring and again in the fall.
Warm Season Broadleafs, like Black Medic, Spurge, Wood Sorrel, Purslane, and Oxalis emerge in the lawn during the warmer summer months.
Treatment Recommendations The most effective way to treat broadleaf weeds is with a liquid product that can be readily absorbed into the plant through its leaf surface. This means broadleaf weeds need to be treated "post emergently" or after they have become visible in the lawn. Since weeds continue to emerge throughout the growing season as soil temperatures change, a minimum of 4 weed control treatments need to be applied. Lawns experiencing special weed problems will require additional treatments.
Common Consumer Questions about Broadleaf Weeds
After I have eliminated all the weeds in the spring, why do weeds keep coming up in the summer and fall? There are millions of weed seeds that survive in the soil for up to 8 years. A minute percentage of these weed seeds can germinate and sprout new weeds during the summer and fall. Various soil temperatures will germinate different varieties of weeds throughout the growing season.
What is that Ivy that grows in my lawn? There are a variety of ground ivys that are quite common. Ground Ivys are very stubborn due to their small, wax-coated leaves. Control can be improved with a series of treatments 10-14 days apart.
Can I plant grass before or after a broadleaf treatment? Yes, if there is not a pre-emergent in the weed control. The only time grass seed can be injured by a broadleaf treatment is if there are new, tender grass shoots above the soil. In this situation, we treat around the newly seeded areas.
When can I water, mow, or rake after a broadleaf treatment? Wait 24 hours to water. Since most treatments are accompanied by fertilizer or pre-emergent, it is recommended to water thoroughly, (after 24 hours), before mowing or raking.
Why do I have too many weeds along the edges of the street and driveway? We call these heat-sink areas. The extra heat generated by the blacktop and concrete warm the soil, which germinates a higher percentage of weed seeds. The increased heat also stresses the turf, reducing turf density. Reduced turf density allows more sunlight to the soil, which also increases the weed seed germination rate.
The only solution is to re-establish a dense turf with a very aggressive watering program to keep the soil cooler.
How can Guaranteed Turf Care improve my weed control? Guaranteed Turf Care can improve your weed control by having certified technicians backed up by the best training programs in the industry, who are continuously on your lawn scouting weeds, applying the right products at the right time, and who are financially motivated to take the time to do the job right.
What is Integrated Pest Management (IPM)? IPM is all about prevention, monitoring and limited use of control materials.
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