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Weed Control

Identify and eliminate lawn weeds with proven strategies for crabgrass, spurge, and more.

19 articlessummer & fall season

Weeds are the number one frustration for homeowners striving for a clean, healthy lawn. They compete with your grass for sunlight, water, and nutrients, and left unchecked, they can take over entire sections of your yard in a single season. Effective weed control requires a two-pronged approach: prevention and targeted elimination.

Pre-emergent herbicides are your first line of defense, creating a chemical barrier that prevents weed seeds from germinating. Timing is critical -- apply too early and the barrier degrades before peak germination; too late and the weeds are already growing. Our guides cover the exact soil temperature windows for crabgrass, spurge, and other common invaders so you can time your applications perfectly.

For weeds that have already established, post-emergent herbicides provide targeted control. Knowing whether you're dealing with broadleaf weeds like dandelions or grassy weeds like crabgrass determines which product to use. We also cover organic and natural weed control methods for homeowners who prefer chemical-free approaches, including corn gluten meal, vinegar-based solutions, and manual removal techniques that actually work.

Featured Guide

Lawn treatment technician pulling a spray hose from a tank truck toward a green suburban front lawn
Featuredfall8 min read

TruGreen Cost in 2026: Plans, Pricing & Is It Worth It

TruGreen costs about $400–$900 per year for most lawns, or $50–$100 per visit. See 2026 plan pricing, what's included, and how it compares to DIY and local pros.

Key Stat: TruGreen's annual lawn plans run $450–$2,000 depending on lawn size and plan tier, while a comparable DIY fertilization and weed control program typically costs $150–$400 per year in products.

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What to Focus on in August

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All Weed Control Articles

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Frequently Asked Questions

Common questions about weed control, answered by our expert guides.

How long does it take to kill Japanese knotweed?

Most infestations require 3–5 years of repeated herbicide treatments to fully eliminate. A single application will kill above-ground growth but rarely destroys the deep rhizome network, so consistent annual treatment is essential.

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What is the strongest herbicide for Japanese knotweed?

Glyphosate-based herbicides are considered the most effective option for homeowners. Triclopyr is a strong alternative, especially near water bodies. Both must be applied as systemic treatments during active growth for maximum effectiveness.

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Can I dig up Japanese knotweed to get rid of it?

Digging alone is rarely effective because rhizome fragments as small as 0.7 inches can regenerate new plants. Excavation can help reduce the colony but should always be combined with herbicide treatment for reliable long-term control.

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Is Japanese knotweed illegal to have in your yard?

In many US states and UK regions, allowing Japanese knotweed to spread onto neighboring land or waterways can have legal implications. While ownership alone isn't always illegal, you may be required to control it. Check your local regulations for specific rules.

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Is lamb's quarters harmful to my lawn?

Lamb's quarters doesn't directly poison grass, but it competes aggressively for nutrients, water, and sunlight. Left unchecked, it can spread rapidly and crowd out desirable turf, especially in thin or bare areas.

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