Bentgrass Weed Control

Bentgrass control in lawns is a complex and challenging task, often requiring a specialized approach due to the unique characteristics of this grass type. Bentgrass, while ideal for golf course greens, can be problematic in residential lawns, forming dense patches that are visually unappealing and difficult to manage. Here’s an in-depth look at how bentgrass control is typically handled.

 The Challenge of Bentgrass

Bentgrass is a cool-season grass with a fine texture and a tendency to form tight, mat-like growth. In a lawn setting, it can create uneven, spongy areas that are distinct from other grass types. Its ability to spread quickly and its different maintenance needs make it a difficult species to integrate into a standard lawn.

Selective Bentgrass Control Strategy

Selective control of bentgrass involves carefully applying specialty herbicides designed to target this specific grass type without damaging the desirable turfgrass around it.

Timing of Weed Control Applications

  1. Treatment Period: The optimal time for applying these herbicides is during the warmer months of July and August. Successful treatment at this time allows for the establishment of a more desirable turf species in the optimal seeding window of mid-August to early-September.

  2. Application Frequency: The treatment program requires three sequential applications of the specialty herbicidemade 10-14 days apart.

Effectiveness and Follow-up

– Control Rate: This approach generally provides about 90% control of the bentgrass. However, complete eradication in a single season is often not possible.

– Need for Reapplication: Due to the resilience of bentgrass, it’s possible that follow-up applications will be needed in subsequent years to maintain control over this invasive grass.

Post-Treatment Process

After the herbicide applications, the bentgrass will usually turn white and die. This process is also effective on nimblewill, another invasive grass species.

  1. Removal of Dead Bentgrass: Once the bentgrass has died, it should be physically removed. This task is best handled by a professional landscaper to ensure thorough removal and to prepare the area for overseeding.

  2. Overseeding: Immediately following the final herbicide application and removal of dead bentgrass, overseeding the area is crucial. This helps to establish desirable grass types in the areas where the bentgrass has been eliminated.

 Professional Weed Control Consultation for Bentgrass

Given the complexity of bentgrass control and the need for precise herbicide application and subsequent lawn care, professional consultation is highly recommended. Lawn care services, such as those offered by Emerald Lawn Care, can offer valuable advice and services for both the treatment process and the overseeding that follows.

 

Collaborating with Lawn Care Professionals

A coordinated effort between the lawn care service and your landscaper can ensure a successful transition from bentgrass removal to the establishment of a healthy, uniform lawn. This collaboration is essential to address all aspects of the process, from effective herbicide application to soil preparation and the selection of suitable grass varieties for overseeding.


Effective bentgrass control requires a strategic and sustained effort, involving specialized herbicide treatments and careful lawn restoration practices. Due to the intricacies involved, homeowners seeking to manage bentgrass in their lawns are advised to seek professional guidance and services. With expert assistance, the challenges posed by bentgrass can be successfully overcome, leading to a healthier and more aesthetically pleasing lawn.


Transform your lawn from a weed-infested battlefield into a lush, green paradise. Reach out to Emerald Lawn Care today and let the weed control professionals handle the weeds so you can enjoy your lush lawn that is free of Bentgrass.

 

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