Our round 4 application consists of a liquid broadleaf weed control herbicide. Our round 4 application is started when day time temperatures are under 90 degrees F. It is important to treat broadleaf weeds when they are actively growing. If you apply a round 4 application too early, you risk burning your turf grass if the temperatures are too high. If you wait until September to treat for broadleaf weeds, you will have a better kill rate. Treating broadleaf weeds from the first part of September through mid October is the most effective window for control in the fall. We resume treating broadleaf weeds in the fall when temperatures drop below 90 degrees.
Round 4 application is the best time to treat broadleaf weeds.
We do not apply granular fertilizer in our round 4 application. We use stabilized nitrogen products that break down significantly slower than sulfur coated urea products. Our fertilizer products will last up to four months after each application. By feeding your lawn slowly, we encourge the turf grass to work hard at taking up the nutrients that we provide. This is why the lawns that we treat are greener, healthier and have a stronger root system then those of the competition.
Our broadleaf herbicide products are liquid for a more accurate control. Granular broadleaf products will not effectively control broadleaf weeds. Some difficult weeds such as wild violet, white clover and ground-ivy (creeping Charlie) will require multiple applications for complete control. When temperatures get cooler, we start using ester based broadleaf weed control products instead of amine. Amine products work best when temperatures are higher because they reduce the risk of burn potential. Ester products work best in the fall because they are alcohol based. Most all of our applications are amine based. If you request a round 4 application after the end of October, the only effective control will be through the use of an ester based product. Ester products will help effectively control wild violet and ground ivy by penetrating their cuticle membrane. The cuticle membrane of the plant acts like an umbrella when herbicides are applied. Ester products penetrate this layer and reach the plant more effectively.