Top 5 Common Weeds in Bend and Redmond: How Pre-Emergent Applications Can Help

Weeds are the bane of every homeowner’s lawn care routine, and in Bend and Redmond, Oregon, certain weeds are particularly troublesome. Understanding which weeds are most common in the area and how to prevent them can save you time and frustration. In this post, we’ll explore the top five common weeds in Central Oregon and how pre-emergent applications can help keep them out of your lawn.

1. Crabgrass (Digitaria spp.)

Why It’s a Problem: Crabgrass is an aggressive weed that thrives in hot, dry conditions, making it a common issue in Central Oregon. It spreads quickly, choking out healthy grass and creating unsightly patches in your lawn.

How Pre-Emergent Helps: Applying a pre-emergent herbicide in early spring, before the soil reaches 55°F, will prevent crabgrass seeds from germinating. Products containing Prodiamine or Pendimethalin are particularly effective.

2. Foxtail (Setaria spp.)

Why It’s a Problem: Foxtail is known for its spiky seed heads that can be harmful to pets and livestock. It competes with turfgrass for water and nutrients, leading to weakened lawns.

How Pre-Emergent Helps: A pre-emergent application in late summer to early fall can prevent foxtail seeds from sprouting. Look for a pre-emergent that targets grassy weeds to stop foxtail in its tracks.

3. Dandelion (Taraxacum officinale)

Why It’s a Problem: Dandelions are perennial weeds that are difficult to control once established. Their deep taproots allow them to survive drought and poor soil conditions, making them a persistent issue.

How Pre-Emergent Helps: While pre-emergent herbicides are less effective against established dandelions, they can prevent new seeds from germinating. Apply a broad-spectrum pre-emergent in early spring to reduce dandelion infestations.

4. Clover (Trifolium spp.)

Why It’s a Problem: While some homeowners like the look of clover, it can quickly take over a lawn if left unchecked. Clover is a hardy weed that thrives in low-nitrogen soils and can crowd out desirable grasses.

How Pre-Emergent Helps: Applying a pre-emergent in early spring can help prevent clover seeds from germinating. Make sure your lawn is well-fertilized to discourage clover growth and enhance the effectiveness of the pre-emergent.

5. Quackgrass (Elymus repens)

Why It’s a Problem: Quackgrass is a highly invasive perennial weed that spreads through rhizomes, making it difficult to eradicate. It can outcompete turfgrass, leading to uneven and unsightly lawns.

How Pre-Emergent Helps: Quackgrass is challenging to control with pre-emergents alone, but a pre-emergent application in early spring can reduce its spread by targeting newly germinating seeds. For established quackgrass, combining pre-emergent use with other control methods may be necessary.

Conclusion

Weeds like crabgrass, foxtail, dandelions, clover, and quackgrass can be particularly troublesome in Bend and Redmond, Oregon. By using pre-emergent herbicides at the right times, you can prevent these weeds from taking root and keep your lawn looking its best. Remember, the key to successful weed control is staying ahead of the problem—apply pre-emergents before weeds have a chance to establish themselves, and you’ll enjoy a healthier, more beautiful lawn.