If you’ve had lawn grass problems in the past, your grass will usually repeat the same growing pattern in the spring. As a preventive course of action, you have to apply preemergent herbicides to the yard before the weeds emerge. Preemergent herbicides prevent weed seed germination. Before applying the herbicide, you must maintain your lawn’s health using regular mowing.
New Lawns
Sensitive grass purifiers require time to set themselves before you apply any preemergent herbicides. In general, your lawn needs to be mowed approximately three times before you use any substances. This enables the grass roots to stretch deeper to the soil for nutrients and moisture when strengthening the grass blades as they mature. Solid grasses contribute to a well-aerated soil structure that offers ample space for the preemergent to spread evenly throughout the lawn, where even deeply embedded bud seeds cling to the chemical program.
Established Grass
Healthy lawns make it problematic for grass seeds to germinate, especially with a round of preemergent herbicide put on the grass. Typically, you have to mow your yard once a week to 2 or even 3 inches tall before applying the preemergent. Make sure that your lawn mower’s blades are sharp because preemergent herbicides may damage lawns which are already stressed from broken stems and subsequent disease. Sharp blades provide a clean grass cut for normal growth and harmony with an applied herbicide.
Making Application Easier
Periodic mowing before employing a preemergent herbicide provides a level lawn surface. In case you have patches of thick and thin grassy places, your herbicide program won’t cover the area evenly. As a result, weed seeds escaping the program grow quickly. Consistent mowing promotes even grass growth so the herbicide spreads uniformly throughout the yard, especially when you water the substance into the ground. Water runs down each grass blade, together with the preemergent herbicide, so that it works to its full potential at the ground level.
Advantages of Grass Clippings
The grass clippings left on your own yard from regular mowing also assist your preemergent program. Since you water the herbicide down into the ground, the clippings provide another degree of grass suffocation because lack of light and oxygen in the clipping layer stops seed germination. Subsequent to the preemergent works into the dirt, the clippings also provide a barrier to excessive water runoff that easily leaches the herbicide out of the dirt and renders it ineffective to grass control.