When your yard has overgrown weeds, it’s important to immediately take care of the problem. Herbicide application is a great way to control weed growth. Weed Pro Lawn Care in Atlanta provides professional herbicide applications to help kill weeds and prevent them from returning.
What Are Herbicides?
Herbicide application is a useful, practical tool in weed control in turf areas. Herbicides are not a miracle cure, as they provide only short-term relief from weeds. The best approach is an integrated regime of proper mowing, fertilization, irrigation, and other cultural practices, such as top dressing, to maintain a vigorous turf.
Nonselective: Nonselective herbicides control green plants regardless of species or weed type. These kill all plants, such as renovating or establishing a new turf area for spot treatment or as a trimming material along sidewalks, landscape beds, wooded areas, etc.
Contact: Contact herbicides affect only the portion of green plant tissue contacted by the herbicide spray. These herbicides do not translocate or move in the vascular system of plants. Therefore, these will not kill underground plant parts. Contact herbicides often require repeat applications to kill any re-growth from these underground plant parts.
Systemic: Systemic herbicides are translocated within the plant’s vascular system, transporting the nutrients and water necessary for normal growth and development. Systemic herbicides generally are slower-acting, killing plants over a period of days.
Post-Emergence Herbicides
Post-emergence herbicides kill weeds after the weed plants have emerged from the ground. To be effective, most post-emergence herbicide applications must be absorbed through the leaves; consequently, liquid sprays generally work better than dry, granular materials. Post-emergence herbicides are most effectively applied when weeds are young and thriving.
Selective post-emergence herbicides are usually used to control annual, biennial, and perennial broad-leaved weeds because they will kill many broadleaf plants without damaging the grass plants. These herbicides can also severely damage or kill trees, shrubs, and flowers; thus, they should be used with great care near these plants.
Post-emergence herbicides may be applied any time the weeds are actively growing, the air temperature is 60–80 degrees F, there are no winds, and there is no rain in the forecast for 48 hours. The most effective control of perennial broadleaf weeds is obtained when applied in early fall (August 15–October 15) or in spring (May 1–June 1). Repeated application at 20 to 30-day intervals may be required to control some weeds.
Nonselective post-emergence herbicides kill all plants, both desirable and undesirable. These herbicides can spot-treat perennial grassy weeds that would not be affected by selective herbicides. To treat an area, thoroughly wet the weed foliage with the herbicide solution.
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