Best Lawn Insect Killers (2026)

For most lawns with a general bug problem, the best lawn insect killer is a granular product you can spread over the whole yard and water in, because it reaches pests at the soil line and in the thatch where chinch bugs, armyworms and grubs actually live. Ortho BugClear Lawn Insect Killer granules are our top pick for broad coverage and a long stated residual, Spectracide Triazicide granules are the strongest choice when grubs and cutworms are the main target, and a hose-end spray such as Ortho BugClear Ready-to-Spray is the fastest way to knock down surface insects on a smaller lawn. Below are seven lawn bug killers from current Amazon listings, compared on what each label says about target pests, coverage, residual control and application method.

Part of our Lawn Care guide →

In this guide

1. 1. Ortho BugClear Lawn Insect Killer Granules, 20 lb — Best Overall
2. 2. Spectracide Triazicide Insect Killer for Lawns Granules — Best for Grubs and Cutworms
3. 3. BioAdvanced Complete Brand Insect Killer Granules — Best Above and Below Ground
4. 4. Ortho BugClear Insect Killer for Lawns and Landscapes Ready-to-Spray — Best Ready-to-Spray
5. 5. Spectracide Triazicide Insect Killer for Lawns and Landscapes Concentrate — Best for Lawns Plus Vegetables
6. 6. BioAdvanced Complete Brand Insect Killer Ready-to-Spray — Best Spray for Soil Insects
7. 7. Sevin Garden Perimeter Insect Killer Granules II — Best for Beds and Edges
8. What to Look for in a Lawn Insect Killer
9. Frequently Asked Questions

Disclosure: Urban Lotus Project earns a commission from qualifying Amazon purchases made through links on this page, at no extra cost to you.

How we compared: we compared 7 current Amazon listings on what each listing states about target pests, coverage, residual control and how the product is applied. We did not test or handle the products, and availability changes.

1. Ortho BugClear Lawn Insect Killer Granules, 20 lb — Best Overall

Best overall

Why We Like It

• Largest coverage on our shelf at 33,000 sq ft.
• Lists armyworms and grubs among target pests.
• Up to 6 months ant control per listing.
• Goes on with a standard broadcast spreader.

Specification	Details
Form	Granules, water in after spreading
Bag size	20 lb
Coverage	Up to 33,000 sq ft
Listed pests	Ants, spiders, ticks, fleas, armyworms, grubs and more
Residual	Up to 6 months for ants (some species excluded), 3 months for other listed pests
Active ingredient	not stated in listing

Ortho BugClear Lawn Insect Killer 20 lb — compressed specs

This is the bag to buy if you want to treat an entire lawn once and be done for the season. The listing says it starts working within minutes against most listed pests (fire ants are the stated exception), and that it keeps working for three months against listed pests other than ants, with ant control extending to six months. Pharaoh, carpenter and harvester ants are excluded from that ant claim, so it is not the answer for carpenter ants in your house framing.

Coverage is the big separator. At up to 33,000 square feet, a single 20-pound bag covers more ground than any other product on our list, which matters if you are treating a half-acre or larger. Ortho also sells the same formula in a 10-pound bag rated for 16,500 square feet if your lawn is smaller. The label tells you to apply when you first notice insect activity or damage and then water it in, which is the right approach for chinch bugs and armyworms that feed at the surface and in the thatch.

Check Ortho BugClear Lawn Insect Killer 20 lb price on Amazon

2. Spectracide Triazicide Insect Killer for Lawns Granules — Best for Grubs and Cutworms

Best for grubs

Why We Like It

• Lists armyworms, cutworms, crickets and grubs.
• Clear grub window: late July to early October.
• Can also band-treat the house foundation.
• Kills above and below ground per listing.

Specification	Details
Form	Granules, water in lightly right away
Bag size	20 lb
Listed pests	100+ insect types incl. ants, crickets, armyworms, cutworms, grubs, ticks
Grub timing	Late July through early October
Where to use	Lawns and as a foundation band treatment
Coverage	not stated in listing

Spectracide Triazicide Lawn Granules 20 lb — compressed specs

Spectracide’s lawn granules earn their place because the listing is specific about grubs: it tells you to treat between late July and early October, which lines up with when Japanese beetle and June beetle grubs are small and feeding near the surface in most of the US. That is the window when a contact insecticide has the best shot at them. The same bag lists armyworms and cutworms, so it covers the late-summer caterpillar outbreaks that often show up as irregular brown patches.

Compared with the Ortho granules, this product does not state its coverage per bag in the listing, so check the printed label for the spreader setting before you buy enough for a large property. It also excludes harvester and pharaoh ants. If grubs are your main concern and you prefer a dedicated preventive product, our best grub killers roundup covers longer-lasting options applied earlier in the season.

Check Spectracide Triazicide Lawn Granules 20 lb price on Amazon

3. BioAdvanced Complete Brand Insect Killer Granules — Best Above and Below Ground

Best two-way formula

Why We Like It

• Two-way formula targets surface and soil insects.
• Kills listed insects within 24 hours per listing.
• Up to 3 months subsurface protection.
• Works in broadcast or drop spreaders.

Specification	Details
Form	Ready-to-spread granules
Bag size	10 lb (20 lb also offered)
Coverage	Up to 10,000 sq ft
Listed pests	Grubs, ticks, mosquitoes and 30 other listed pests
Residual	Up to 3 months for soil insects
Where to use	Turf, roses, flowers, shrubs and trees

BioAdvanced Complete Insect Killer Granules — compressed specs

BioAdvanced pitches this as a two-way product: it kills listed insects on the surface and provides subsurface protection against soil insects for up to three months. That combination suits lawns where you see both surface feeders and grub damage, or where you are not sure which one is responsible for the dead patches. The listing claims a 24-hour kill on listed insects including grubs and ticks, and it works with either a broadcast or a drop spreader.

At 10,000 square feet per 10-pound bag, coverage per pound is a little lower than the Ortho granules, so on a large lawn you will go through more bags. On a typical suburban front and back yard, one bag is usually enough. BioAdvanced also offers this formula as a 20-pound bag and as the ready-to-spray bottle further down this list.

Check BioAdvanced Complete Insect Killer Granules price on Amazon

4. Ortho BugClear Insect Killer for Lawns and Landscapes Ready-to-Spray — Best Ready-to-Spray

Best spray

Why We Like It

• No mixing; attaches straight to a garden hose.
• Lists 235 insects including armyworms.
• Starts killing within minutes per listing.
• Treats lawn, perimeter or foliage.

Specification	Details
Form	Ready-to-spray, hose-end
Size	32 oz
Coverage	5,300 sq ft lawn, 1,400 sq ft perimeter or 2,700 sq ft foliage
Listed pests	235 incl. ants, ticks, armyworms, mosquitoes, fleas, spiders
Where to use	Lawns, perimeter, ornamentals, listed vegetables and fruit trees
Residual	Long-lasting; exact period not stated

Ortho BugClear Lawns and Landscapes Ready-to-Spray — compressed specs

When armyworms are marching across a lawn in late summer, speed matters more than residual. A hose-end spray wets the grass blades where caterpillars feed, and this one is ready to go without measuring or a pump sprayer. The listing names armyworms specifically, along with ants, ticks, fleas, spiders and mosquitoes, and says it starts killing within minutes.

The trade-off is coverage. One bottle treats a 5,300-square-foot lawn, roughly an eighth of an acre, so a larger yard needs several bottles, and the granules above are better value on area. Ortho also sells a near-identical Home Defense Lawn and Landscape spray with the same coverage figures. For surface pests on a modest lawn, either is the simplest way to treat.

Check Ortho BugClear Lawns and Landscapes Spray price on Amazon

5. Spectracide Triazicide Insect Killer for Lawns and Landscapes Concentrate — Best for Lawns Plus Vegetables

Most versatile

Why We Like It

• Longest listed insect count on our shelf.
• Labeled for vegetables and fruit trees too.
• Concentrate stretches across many applications.
• Non-staining to most siding per listing.

Specification	Details
Form	Dilutable concentrate
Size	32 fl oz
Listed pests	260+ incl. grubs, most ants, fleas, deer ticks, Japanese beetles
Where to use	Lawns, vegetables, fruit and nut trees, roses, flowers, shrubs
Control	Up to 3 months
Coverage	not stated in listing

Spectracide Triazicide Concentrate 32 oz — compressed specs

If you want one bottle that handles the lawn and the vegetable garden, this concentrate is the most flexible product here. The listing says it kills more than 260 insects by contact, above and below ground, including grubs, Japanese beetles and deer ticks, and it is labeled for lawns, vegetables, fruit and nut trees, roses and shrubs. You mix it with water in a tank sprayer or hose-end sprayer, so the bottle covers a lot more ground than a ready-to-spray version of the same size.

The catch with concentrates is the extra step: you need a sprayer and you need to read the mixing rates for each use. On edible crops, follow the label’s days-to-harvest interval exactly. Spectracide also offers this formula in a QuickFlip hose-end version if you would rather skip the mixing.

Check Spectracide Triazicide Concentrate 32 oz price on Amazon

6. BioAdvanced Complete Brand Insect Killer Ready-to-Spray — Best Spray for Soil Insects

Best soil spray

Why We Like It

• Same two-way formula as the granules.
• Up to 3 months soil insect protection.
• Lists grubs, ants and ticks.
• No spreader needed.

Specification	Details
Form	Ready-to-spray, hose-end
Size	32 oz
Coverage	Up to 5,334 sq ft
Listed pests	Grubs, ants (not pharaoh), ticks, mosquitoes and 30 others
Residual	Up to 3 months
Where to use	Soil and turf lawns and around the home

BioAdvanced Complete Ready-to-Spray 32 oz — compressed specs

This is the spray to choose if you want the soil-insect protection of the BioAdvanced granules without owning a spreader. The listing claims the same two-way action, a 24-hour kill on listed insects including grubs, and up to three months of protection. One bottle treats just over 5,300 square feet, about the same as the Ortho spray.

Be careful when you order: BioAdvanced sells a similar-looking blue 32-ounce bottle whose listing states only two weeks of surface protection. The version picked here is the one that states up to three months. Water the lawn well a day or two before spraying any soil insecticide so it can move down into moist soil instead of sitting in dry thatch.

Check BioAdvanced Complete Ready-to-Spray 32 oz price on Amazon

7. Sevin Garden Perimeter Insect Killer Granules II — Best for Beds and Edges

Best for small areas

Why We Like It

• Shaker can makes spot treatment easy.
• Labeled for 175+ fruits and vegetables.
• Kills over 100 listed insects by contact.
• Clear rate: 1/4 to 1 lb per 250 sq ft.

Specification	Details
Form	Granules in a shaker can
Size	3 lb
Rate	1/4 to 1 lb per 250 sq ft
Listed pests	100+ insects above and below the surface
Control	3 months per application
Where to use	Lawns, fruits, vegetables, ornamentals, shrubs, flowers

Sevin Garden Perimeter Granules II — compressed specs

Many people search for “Sevin insect killer” when they mean a lawn bug killer, and this is the Sevin product on our shelf that fits. It is a 3-pound shaker can rather than a spreader bag, so it is best for spot-treating ant mounds, lawn edges, the strip along a foundation, or a flower and vegetable bed bordering the lawn. The listing gives a clear rate of a quarter to one pound per 250 square feet, which works out to small areas per can.

Do not plan to treat a whole lawn with it. At those rates, a can covers somewhere between 750 and 3,000 square feet depending on the pest. Where it shines is the overlap zone between turf and garden, because it is labeled for more than 175 fruits and vegetables and says it will not harm plants or blooms.

Check Sevin Garden Perimeter Granules II price on Amazon

What to Look for in a Lawn Insect Killer

Match the product to the pest

Lawn insects fall into two groups. Surface feeders such as chinch bugs, armyworms, sod webworms and cutworms chew or suck on grass blades and crowns, usually in hot, dry midsummer to late summer. Soil feeders, mainly white grubs, eat roots an inch or two below the surface. Surface feeders respond to sprays and granules applied when you see them; grubs need an insecticide that is watered into the root zone while the grubs are young, typically from mid-July to early September in most of the US. Before buying anything, confirm what you have. Our chinch bug guide walks through the float test, and pulling back a square foot of sod will tell you whether grubs are the problem.

Granules vs sprays

Granules go on with a broadcast or drop spreader, are easy to apply evenly, and cover large areas at a low cost per square foot. They need watering in with about a quarter to half inch of water. Hose-end sprays treat faster and coat the grass blades where caterpillars feed, but most 32-ounce bottles cover only about 5,000 square feet. Concentrates cost less per application but need a tank or dial sprayer and careful mixing.

Coverage and residual

Measure your lawn before you shop. Multiply length by width for each section and add them up, then subtract the house, driveway and beds. Compare that number to the coverage on the label, not just the bag weight. Residual control on these products typically runs up to about three months for listed pests, which means one well-timed application often handles a season’s main outbreak.

Protect pollinators and pets

Broad-spectrum lawn insecticides, including the pyrethroid and carbaryl types common in this category, are toxic to bees and aquatic life. Mow clover and dandelions before treating so nothing in the lawn is in bloom, avoid spraying on windy days, and keep products off driveways and sidewalks where rain carries them to storm drains. Keep children and pets off the area until sprays have dried, or until granules have been watered in and the grass has dried, following the label. If you would rather avoid synthetics for grubs, see our comparison of beneficial nematodes vs milky spore. For a broader approach to every pest in your yard, start with our pest control guide.

Fix the conditions that invite pests

Chinch bugs thrive in drought-stressed, thatchy lawns in full sun, especially St. Augustine and zoysia. Sod webworms and armyworms favor stressed turf too. Keeping thatch under half an inch, watering deeply once or twice a week rather than lightly every day, and mowing at the top of the recommended height for your grass type all reduce how often you need to reach for an insecticide at all.