What is Pre-Emergent Weed Control & When Should It Be Applied?

Use Pre-Emergent Weed Control

“An Ounce of Prevention is worth a pound of cure”, this saying holds true when it comes to weed control as weeds are invasive and multiply by producing numerous seeds as they grow. Therefore, pre-emergent weed control, which helps tackle weeds when they are in the seed stage, stands as an effective choice for weed control.

Weed seeds can enter the lawn through various sources including wind, water, soil and mulch making weed control is continuous process. Weed control must be performed at the right times when the susceptibility of weed growth is greater. To know more about pre-emergent weed control and the appropriate time to implement it, keep reading.

What are Pre-emergent Herbicides and How do they work?

The pre-emergent herbicides are the products widely used for pre-emergent weed control. When combined with proper lawn maintenance, mulching, regular mowing, and adequate watering, it is more effective. Pre-emergent herbicides are applied to the soil before the weeds germinate. These herbicides form a layer of barrier around the seeds. When the weed seeds absorb water and start to multiply, this chemical layer prevents cell multiplication. Thus, pre-emergent herbicides help to control the growth of weed seeds.

The Best Time to Apply Pre-emergent Herbicides

Pre-emergent herbicides do not work for existing weeds. The timing of application depends upon the climate and type of weed that should be addressed. The commonly preferred seasons are:

Spring: During the spring, the annual weeds like crabgrass and foxtail can be prevented from taking root. Also. the growth of some perennial weeds can be controlled. Early spring is considered as one of the best times for applying pre-emergent herbicides. The pre-emergent herbicides are usually applied before the temperature reaches 55°F. This period usually extends from early February and early April.

Fall: Application of pre-herbicides in fall is effective for preventing the emergence of chickweed, henbit, and annual bluegrass. The application before winter helps to control the germination of weeds more effectively, as the winter annual weeds germinate in winter. The timing usually extends from late August to early October, but it can vary depending on your location. 

Soil temperatures play an important role in determining the timing of application of pre-emergent herbicides, in addition to atmospheric temperatures. Since pre-emergent herbicides generally require hydration for activation, it is essential to understand the usage measures. Additionally, it may be required to avoid disturbance to the lawn after application for a specific period.

Closing Remarks

Thus, pre-emergent weed control helps in the growth of desirable plants and grass by eliminating the weeds before developing. Also, it is considered one of the less labour-intensive and effective ways when compared to post-emergent weed control. It requires fewer applications and the usage of reduced amount of chemicals, making it a safer solution. Generally, the expertise of professionals helps in achieving long-term benefits.

At Lawn Pro of the Carolinas, we provide effective weed control services using advanced equipment and chemical/eco-friendly herbicides. Our team is well-equipped to handle all types of weeds, with specific measures. Contact us to ensure effective weed control, all the year-round.

Share us