The following guide highlights effective products for treating sod webworms and related caterpillars in outdoor lawns and landscape areas. Each option targets caterpillar activity, helps protect turf, and supports broader lawn health. The selections focus on widely available insecticides and biological controls commonly used by American gardeners and professionals. Review product features, application methods, and outdoor-use suitability to choose the right approach for your lawn care plan.
| Product | Brand |
|---|---|
| SUMMIT 021-6 Caterpillar and Webworm Control – Hose End | Summit Store |
| Summit Caterpillar and Webworm Control – Hose End, 1 Qt Concentrate | Summit Store |
| Fertilome Spinosad Insecticide (32 oz.) | ferti-lome Store |
| Bonide Captain Jack’s Bacillus Thuringiensis (Bt) Organic Worm & Caterpillar Control | Bonide Store |
| Additional Option: Bt or Spinosad-based products for turf | Various |
SUMMIT 021-6 Caterpillar and Webworm Control

Brand: Summit Store. This hose-end insecticide is designed for outdoor use to control caterpillars and sod webworms. It provides broad-spectrum control and convenient mixing for regular lawn care routines. The package lists dimensions to help with storage and application planning. When applying, follow label directions for safe use and effective coverage across turf areas. This option is suitable for homeowners seeking a ready-to-use solution without mixing concentrates.
Key features include ease of application via hose-end sprayer, targeted control of caterpillars and webworms, and compatibility with typical lawn care schedules. Practical for those who prefer fast coverage across large lawn spaces. Always confirm local regulations and observe environmental considerations when applying any lawn insecticide.
Summit Caterpillar and Webworm Control – Hose End, 1 Qt Concentrate

Brand: Summit Store. This concentrated hose-end formula is designed for outdoor use to combat caterpillars and sod webworms. The product is compact for storage and comes in a lightweight package with dimensions listed for planning. It offers a practical option for users who want to mix a ready-to-use solution at home and tailor the application to lawn size. Follow the label for dilution rates and safe handling outdoors.
Considerations include compatibility with typical irrigation systems, coverage consistency, and timing relative to moth life cycles. Concentrates often provide flexibility for varied lawn sizes, but require careful measurement to achieve optimal results without over- or under-applying. Always apply during appropriate weather windows and avoid stressed or newly seeded areas.
Fertilome Spinosad Insecticide

Brand: ferti-lome Store. Spinosad-based insecticide offers targeted control for a variety of pests, including caterpillars, leafrollers, and webworms. The Fertilome product line is designed for outdoor use on vegetables, trees, shrubs, and flowers, with a focus on broad pest suppression while aiming to minimize harm to beneficial organisms when used as directed. The 32-ounce size provides a ready option for larger treatment areas or multiple applications across the season.
Key considerations include the product’s spectrum of activity, weather tolerance of the active ingredient, and compatibility with existing garden or lawn care schedules. Spinosad is widely respected for its effectiveness against caterpillars but should be applied following label instructions to avoid non-target impacts. Applicator safety and personal protective equipment are important during handling and mixing in outdoor environments.
Bonide Captain Jack’s Bacillus Thuringiensis Bt Organic Worm & Caterpillar Control

Brand: Bonide Store. Captain Jack’s Bt Thuricide Ready-to-Use Spray targets worm and caterpillar life stages while posing minimal risk to birds, earthworms, and beneficial insects when used as directed. This product is suitable for use on a range of food crops and ornamentals, and it is compatible with outdoor landscapes, trees, and shrubs. It works by ingestion, causing caterpillars to stop feeding and die after a short period, making it a trusted option for organic lawn and garden care.
Considerations include timing relative to caterpillar activity, spray coverage for thorough leaf and stem treatment, and ensuring compatibility with other lawn care inputs. Bt-based products are often favored by gardeners seeking organic or low-toxicity solutions, though effectiveness depends on proper coverage and pest exposure to treated surfaces.
Buying Guide: Key Purchase Considerations For Sod Webworm Moth Treatments
Target Pest and Life Cycle
Identify whether the primary issue is sod webworms or other caterpillars. Choose products with demonstrated efficacy against those pests at their feeding stages. Some formulations are more effective during late larvae stages, while others work best at early infestations.
Mode of Action
Consider synthetic insecticides (nearly all contact or ingestion-based), biologicals such as Bt, and bacterial or natural formulations like Spinosad. Each mode offers different environmental profiles, breakthrough timings, and effects on non-target organisms. For lawns, Bt is popular for organic or low-toxicity strategies, while Spinosad provides broader contact activity.
Formulation Type
Decide between hose-end sprays, ready-to-use concentrates, and ready-to-spray options. Hose-end products provide quick, broad coverage, while concentrates let you tailor dilution. Choose according to lawn size, equipment availability, and preferred application cadence.
Outdoor Suitability
Ensure the product is labeled for outdoor lawn and landscape use and compatible with turf, ornamentals, or vegetables if applicable. Read the label for plant safety, reentry intervals, and any restrictions on blooming periods or water runoff management.
Environmental and Beneficial Insects
Assess potential impacts on bees, earthworms, and other beneficial insects. Some products are designed to minimize harm to non-target species, while others have broader activity. Timing applications to avoid pollination periods can help protect beneficials.
Application Timing and Weather
Apply under suitable weather windows to maximize contact with pests and minimize wash-off. Avoid applications before heavy rainfall and extreme heat, and schedule treatments when turf is not under drought stress to prevent further damage.
Safety, Handling, And Storage
Follow label directions for handling, personal protective equipment, and storage. Keep products out of reach of children and pets, and store in original containers to preserve label integrity and safety information.