You’ve probably noticed those unsightly patches of brown grass and wondered why your lawn’s thriving one week and looking miserable the next. Sod‑webworms are the culprits, and the right treatment can keep them at bay without wrecking your schedule or the environment. Below, you’ll find the seven most effective options for 2026, each with its own strengths and application quirks, so you can match a product to your lawn’s specific needs.
| Scotts GrubEx1 Season Long Grub Killer (14.35 lb) |  | Season‑Long Guard | Form: Granules | Primary Target: Grubs (incl. sod webworms) | Coverage Area: 5,000 sq ft per bag | CHECK ON AMAZON | Read Our Analysis |
| Ortho BugClear Lawn Insect Killer – 10 lb Granules |  | Broad‑Spectrum Shield | Form: Granules | Primary Target: General lawn insects (incl. sod webworms) | Coverage Area: 16,500 sq ft per bag | CHECK ON AMAZON | Read Our Analysis |
| SUMMIT 021-6 Caterpillar & Webworm Control Hose End 1‑Quart White |  | Targeted Spray | Form: Liquid spray (hose‑end) | Primary Target: Caterpillars & webworms | Coverage Area: ~12–24 gal spray (~2,500 sq ft per quart) | CHECK ON AMAZON | Read Our Analysis |
| BioAdvanced Season Long Grub Control Granules -10 lb Bag |  | Pro‑Grade Control | Form: Granules | Primary Target: Grubs (incl. sod webworms) | Coverage Area: 5,000 sq ft per bag | CHECK ON AMAZON | Read Our Analysis |
| Ortho Bug B Gon Insect Killer 20 LB |  | Heavy‑Duty Coverage | Form: Granules | Primary Target: General lawn insects (incl. sod webworms) | Coverage Area: 20,000 sq ft per bag | CHECK ON AMAZON | Read Our Analysis |
| Spectracide Immunox Fungus Plus Insect Control 32 oz |  | Dual‑Action Defender | Form: Liquid concentrate (hose‑end) | Primary Target: Insects & lawn diseases (incl. sod webworms) | Coverage Area: 2,500 sq ft per bottle | CHECK ON AMAZON | Read Our Analysis |
| Scotts Turf Builder SummerGuard Lawn Food 13.35 lb |  | Fertilizing Protector | Form: Granules + fertilizer | Primary Target: Lawn insects (incl. sod webworms) | Coverage Area: 5,000 sq ft per bag | CHECK ON AMAZON | Read Our Analysis |
More Details on Our Top Picks
Scotts GrubEx1 Season Long Grub Killer (14.35 lb)
Looking for a lawn‑care solution that stops webworms before they damage your sod? Scotts GrubEx1 Season Long Grub Killer lets you protect your turf with a single spring or early‑summer application. You spread the 14.35 lb bag over a dry lawn, covering up to 5,000 sq ft, and the formula kills young grubs and prevents new ones for about four months. It also tackles armyworms, chinchbugs, May/June beetles, and can curb Japanese beetle numbers when you reapply yearly. One treatment per season gives you season‑long defense, keeping your sod healthy and worm‑free.
- Form:Granules
- Primary Target:Grubs (incl. sod webworms)
- Coverage Area:5,000 sq ft per bag
- Duration of Control:Up to 4 months
- Application Timing:Spring/early summer (dry lawn)
- Packaging Weight:14.35 lb bag
- Additional Feature:Early‑season application
- Additional Feature:Multi‑insect control list
- Additional Feature:Prevents Japanese beetle
Ortho BugClear Lawn Insect Killer – 10 lb Granules
Need you need a fast‑acting, long‑lasting barrier against a wide range of lawn pests, Ortho BugClear Lawn Insect Killer’s 10‑lb granules are the perfect choice. You’ll cover up to 16,500 sq ft, spreading the granules with a Scotts spreader and watering them in to activate. The formula starts killing ants, spiders, ticks, fleas, armyworms, and grubs within minutes—except fire ants—offering three months of residual control and six months for ant suppression (excluding pharaoh, carpenter, and harvester ants). It works on lawns, ornamental beds, perimeters, and approved vegetable plants, making it ideal for medium to large outdoor spaces.
- Form:Granules
- Primary Target:General lawn insects (incl. sod webworms)
- Coverage Area:16,500 sq ft per bag
- Duration of Control:3 months (general) / 6 months (ants)
- Application Timing:Spring or as needed (dry lawn)
- Packaging Weight:10 lb bag
- Additional Feature:Fast‑acting bug barrier
- Additional Feature:Excludes specific ant types
- Additional Feature:Home perimeter coverage
SUMMIT 021-6 Caterpillar & Webworm Control Hose End 1‑Quart White
If you’re battling caterpillars and webworms on shade‑loving trees or fruit orchards, the Summit 021‑6 hose‑end spray is the go‑to solution. This 1‑quart white bottle mixes with water to produce 12‑24 gallons of biological control, perfect for hose‑end application. You’ll spray a lightweight 2.5‑pound container, covering shade and fruit trees efficiently. The spray targets insects directly, reducing damage without harsh chemicals. Its compact dimensions (23.9 cm × 6.6 cm × 12.4 cm) fit easily in your gear. Warranty support and a 30‑day Amazon return guarantee give you peace of mind while you protect your orchard.
- Form:Liquid spray (hose‑end)
- Primary Target:Caterpillars & webworms
- Coverage Area:~12–24 gal spray (~2,500 sq ft per quart)
- Duration of Control:Immediate, no residual claim
- Application Timing:When pests appear; mix with water
- Packaging Weight:1 quart (2.5 lb) bottle
- Additional Feature:Hose‑end spray ready
- Additional Feature:Dilutes to 12‑24 gal
- Additional Feature:Shade & fruit tree use
BioAdvanced Season Long Grub Control Granules -10 lb Bag
Homeowners with lawns spanning up to 5,000 sq ft will appreciate the BioAdvanced Season‑Long Grub Control Granules, a 10‑lb bag that instantly starts killing grubs, mole crickets, chinch bugs, ticks, crickets, and earwigs while forming a protective barrier for the entire season. You spread the ready‑to‑use granules with a rotary or drop spreader, then water lightly to activate the 0.25 % imidacloprid. The formula works immediately, giving season‑long protection if you treat at the first sign of damage. You can apply up to three times a year, but avoid use in NY, CT, VT, MD, MA, ME, and CO. The product carries EPA registration 92564‑16 and a 30‑day Amazon return policy.
- Form:Granules
- Primary Target:Grubs (incl. sod webworms)
- Coverage Area:5,000 sq ft per bag
- Duration of Control:Season‑long (≈6 months)
- Application Timing:First sign of grubs; spring/summer
- Packaging Weight:10 lb bag
- Additional Feature:Imidacloprid active ingredient
- Additional Feature:Not sold in 7 states
- Additional Feature:Immediate onset of control
Ortho Bug B Gon Insect Killer 20 LB
Looking for a lawn‑care solution that tackles sod webworms and a host of other pests while covering up to 20,000 sq. ft.? Ortho Bug B Gon 20 lb granules kill ants, fleas, ticks, chinch bugs, spiders, cutworms, mole crickets, and sod webworms, both above and below the surface, and keep them at bay for three months. Apply it early in spring or summer, or as soon as you spot activity, on lawns, ornamentals, flower beds, and even vegetable gardens. The proactive treatment prevents infestations before damage starts, delivering broad‑spectrum protection across a large area with a single spread.
- Form:Granules
- Primary Target:General lawn insects (incl. sod webworms)
- Coverage Area:20,000 sq ft per bag
- Duration of Control:Up to 3 months
- Application Timing:Early spring or summer, first sign of activity
- Packaging Weight:20 lb bag
- Additional Feature:Proactive early‑spring use
- Additional Feature:Suitable for edible gardens
- Additional Feature:Broad spectrum insect list
Spectracide Immunox Fungus Plus Insect Control 32 oz
Spectracide Immunox Fungus Plus Insect Control, 32 oz delivers a dual‑action formula that simultaneously fights lawn diseases and kills sod webworms, making it the go‑to treatment for anyone who wants a healthy, pest‑free yard without juggling multiple products. You attach the QuickFlip sprayer to your hose, then spray until the grass is wet; the 32‑ounce bottle covers about 2,500 sq ft. Propiconazole tackles black spot, brown patch, rust, and powdery mildew, while lambda‑cyhalothrin kills ants, fleas, brown dog ticks, and webworms on contact. It becomes rain‑proof within hours, so you can treat in spring or at the first sign of damage and reapply every two weeks for best results.
- Form:Liquid concentrate (hose‑end)
- Primary Target:Insects & lawn diseases (incl. sod webworms)
- Coverage Area:2,500 sq ft per bottle
- Duration of Control:Rain‑proof within hours; repeat every 2 weeks
- Application Timing:At first sign of disease or insect damage (spring)
- Packaging Weight:32 oz (2 lb) bottle
- Additional Feature:Dual fungicide & insect action
- Additional Feature:Rain‑proof within hours
- Additional Feature:QuickFlip hose‑end sprayer
Scotts Turf Builder SummerGuard Lawn Food 13.35 lb
Need you’re battling summer heat and a surge of lawn insects, Scotts Turf Builder SummerGuard Lawn Food, 13.35 lb, offers a dual‑action solution that feeds your grass while killing pests like armyworms, chinch bugs, and grasshoppers. The 13.35‑lb bag blankets up to 5,000 sq ft, so you can treat a whole yard in one go. Apply the blend to a dry lawn as soon as you spot bug activity; it works on any grass type and protects against ants, crickets, fleas, spiders, and ticks too. The fertilizer strengthens roots against drought, while the insecticide curbs damage, keeping your lawn lush through summer.
- Form:Granules + fertilizer
- Primary Target:Lawn insects (incl. sod webworms)
- Coverage Area:5,000 sq ft per bag
- Duration of Control:Season‑long (heat & drought)
- Application Timing:Summer, when insect activity observed
- Packaging Weight:13.35 lb bag
- Additional Feature:Heat‑ and drought‑resistance boost
- Additional Feature:Fertilizer + insect control combo
- Additional Feature:Summer‑specific application timing
Factors to Consider When Choosing Sod Webworm Treatments for Lawn Damage Control
You should first confirm you’re targeting the right pest and then follow the product’s timing guidelines to hit the webworms at their most vulnerable stage. Check the coverage rate to ensure even application and verify that the treatment meets safety and environmental standards. Finally, make certain the product works with any other lawn care chemicals you’re already using.
Target Pest Identification
During warm months, you’ll spot sod webworms by the tell‑tale frass on the lawn, chewed leaf edges, and birds pecking at freshly mown turf. To confirm the pest, examine the brownish, irregular patches; the webworms leave ragged holes and a powdery droppings trail. Flip a few blades—if you see small, green‑to‑brown caterpillars about half an inch long, you’ve identified the culprit. Remember that other insects, like armyworms, produce similar damage, but their frass is darker and the larvae are larger. Use a hand lens for a quick visual check, and compare findings with local extension photos. Accurate identification lets you choose a contact or ingestion insecticide that targets the larvae before they spread.
Application Timing Guidelines
Now that you’ve confirmed the pest, timing the treatment is key to stopping sod webworms before they cause noticeable damage. Apply in spring through early summer, when larvae are emerging but before they chew visible patches. Choose a dry lawn for granular or hose‑end products; moisture will help the granules stick and activate once you water afterward. Follow the label’s re‑application limits—many formulas allow up to three applications per year—so you don’t exceed the safe threshold. Make sure each bag covers your lawn’s area; typical products treat about 5,000 sq ft, giving you season‑long protection when spread evenly. Pair insecticides with the recommended irrigation step to trigger the active ingredient and extend residual control.
Coverage and Rate
What determines how much product you need is the coverage rate printed on the label. You’ll see a figure like “5,000 sq ft per bag” for granular grub/insect controls, and you’ll match that against your lawn’s total square footage. Granular products usually give coverage per bag—often a 10‑lb or 14.35‑lb bag—so you can calculate how many bags cover for a lawn size. Hose‑end or spray formulations list square‑feet coverage for a whole‑lawn application, letting you dose the tank accordingly. Compare the product’s coverage to your yard to avoid under‑ or over‑application. If the label notes multiple applications per season, remember each dose adds to the cumulative treated area, extending season‑long control.
Safety and Environmental Impact
Ever wondered how a sod‑webworm treatment might affect the ecosystem around your lawn? When you pick a product, check its active ingredient. Chlorantraniliprole tends to linger longer, while bifenthrin and lambda‑cyhalothrin break down faster but can harm beneficial insects. Look for season‑long protection claims—four to six months of residue may seep into soil and water, especially if you apply on a damp surface. Follow dry‑lawn timing and set your spreader precisely to limit runoff. State approvals vary, so verify that the formulation is legal where you live; non‑compliant products can threaten local wildlife and expose you to fines. Hose‑end sprays drift more than granules, which penetrate soil with less airborne loss, reducing impact on pollinators and earthworms. Choose wisely to protect both your turf and the surrounding environment.
Product Compatibility and Integration
Choosing the right sod‑webworm treatment means making sure it fits seamlessly into your existing lawn‑care routine. First, verify that the product works with your current spreader or sprayer and won’t clash with your fertilizer rotation. Look for labels that call out sod‑webworm control specifically, rather than generic grub or insect claims, to ensure targeted efficacy. Confirm it’s safe for your grass type, whether you have a simple lawn, ornamental borders, or perimeters near edible plants. Align the treatment’s timing window—spring or summer—with your desired protection period, and check if a season‑long shield matches your schedule. Finally, review state and local regulations to guarantee the product is legal and available in your area.
Frequently Asked Questions
Can I Use Organic Compost to Deter Sod Webworms?
Yes, you can spread organic compost around your lawn; it improves soil health, encourages beneficial insects, and can make the environment less appealing to sod webworms, reducing their damage.
Do Sod Webworms Affect Indoor Potted Plants?
Yes, they can. Sod webworms will chew foliage on potted plants, especially if the soil is warm and moist. Check leaves regularly, prune damaged sections, and consider insecticidal soap to protect them.
Is There a Safe Treatment for Pets During Application?
Yes, you can use pet‑safe insecticidal soaps or neem oil sprays; apply them early morning or late evening, keep pets indoors until the product dries, and follow label instructions for dilution.
How Long Does Rain Delay the Effectiveness of Treatments?
Rain can pause the treatment for 24‑48 hours; you’ll need to wait until the lawn dries before the chemicals activate, otherwise the efficacy drops dramatically. Make sure the soil’s no longer saturated.
Can I Prevent Webworms by Adjusting Irrigation Schedules?
Yes, you can curb webworms by watering early mornings, keeping soil moist but not soggy, and reducing evening irrigation that encourages larvae. Consistent, shallow watering limits their habitat and slows development.
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