Weed Control Services in St. Augustine, FL

B&B Exterminating Company, Inc. provides professional weed control in St. Augustine, FL, helping homeowners across St. Johns County keep their lawns healthy, green, and better protected against common broadleaf weeds year-round. The area's warm temperatures, high humidity, and frequent summer rains create ideal growing conditions for some of the most stubborn lawn weeds in the state. Call (904) 389-3323 today for a free estimate.

A lawn in the backyard in bad condition in need of weed control.

What Weeds Are Most Common in St. Augustine, FL Lawns?

St. Augustine lawns commonly battle four problem weeds. Dollarweed spreads rapidly in moist, low areas and is a frequent problem near the Matanzas River and throughout Anastasia Island communities. Nutsedge looks like grass but grows faster and resists many standard treatments. Crabgrass pushes into thin or stressed turf during the dry season, while Virginia buttonweed spreads aggressively through lawn edges and garden borders. Identifying the right weed early is the first step toward an effective control plan. B&B's standard programs are built around broadleaf weed management; grassy and sedge weeds such as crabgrass and nutsedge may need additional or specialized applications, since not every weed species can be fully controlled.

Pre-Emergent vs. Post-Emergent Applications

Two herbicide types form the foundation of any sound weed management program. Pre-emergent products are applied before weed seeds germinate, creating a soil barrier that stops new growth before it starts. This timing matters especially in St. Johns County, where the growing season can begin as early as February. Post-emergent products target weeds already above the surface, including nutsedge and crabgrass. B&B technicians use both liquid and granular applications matched to the season and turf type.

Is Your Weed Service Safe for Pets and Kids?

Applications made by B&B Exterminating are safe for pets and children once dry. Every product requires that pets and people avoid serviced areas until dry, typically two to four hours. A B&B technician will walk you through any precautions specific to your service before leaving your property.

St. Augustine Weed Control and Prevention Programs

A structured annual program is the most effective approach to long-term weed prevention. B&B offers a 6 to 8 visit program designed around Northeast Florida's seasonal weed cycles:

  1. Initial lawn assessment to identify weed types, turf condition, and problem areas.
  2. Pre-emergent application timed ahead of the spring germination window.
  3. Post-emergent spot applications targeting active broadleaf weeds and grassy invaders.
  4. Mid-season follow-up to address new growth or resistant weeds.
  5. Late-season pre-emergent reapplication to protect against cool-season weed flushes.
  6. Program review and turf health check to plan the next service cycle.

Homeowners in Fruit Cove and Mandarin benefit from this same structured approach, as the sandy soils in those communities can experience different weed pressure than coastal St. Augustine lots.


Learn more about B&B's lawn care services that pair weed management with fertilization and services for surface-feeding insects such as sod webworms and chinch bugs.

Request Your Weed Control Estimate Today

B&B Exterminating Company, Inc. has been delivering reliable weed control and weed prevention across Northeast Florida since 1938. Whether you are dealing with dollarweed near a shaded backyard or nutsedge pushing through a Fruit Cove front lawn, the right program makes a lasting difference. Find B&B Exterminating Company, Inc. on Google, or call (904) 389-3323 to schedule your estimate today.