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221L Residual Insecticide Aerosol

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221L Aerosol Insecticide is a residual aerosol that contains Lambda Cyhalothrin from BASF/Whitmire. It has a low odor and is effective against a wide range of insects. This aerosol is also Whitmire System III compatible.

Target Pests

221L Residual Insecticide will kill and control Ants Bed Bugs Boxelder Bugs Carpenter Ants Carpenter Bees Centipedes Chocolate Moths Clover Mites Cluster Flies Cockroaches Crickets Dermestids Drugstore Beetles Earwigs Elm Leaf Beetles Fire Ants Flour Beetles Grain Weevils Millipedes Scorpions Silverfish Sowbugs Spiders Springtails Above-Ground Termites Ticks Trogoderma Wood-Infesting Borers and Beetles and Wood Wasps.

For Use In

221L Residual Insecticide can be used in and around the following locations; Apartments Campgrounds food Storage Areas Homes Hospitals Hotels Meat Packing and Food Processing Plants Motels Nursing Homes Resorts Restaurants Schools Supermarkets Transportation Equipment Utilities Warehouses and Other Commercial and Industrial Buildings.


Indoors: Crack & Crevice treatment: inject into cracks and crevices or spaces where insects may be harboring. release approximately 1 second of product. Spot Treatment: Hold container upright while spraying. Direct nozzle approximately 12" from surface to be treated. Apply directly on insects in these locations when possible.

Outdoors: Locate suspected infestation and/or insect tunnels and cavities. Drill pilot holes into insect tunnels about 8-10" apart. Inject product for 5-10 seconds per hole. To teat nests, inject the nest at 3-6 sites at a rate of 5-10 seconds per site. for large nests, increase the number of injection sites. For perimeter treatment use the Crack & Crevice treatment explained above.

*Use this product with the supplied actuator and injection tubes.

Time to Kill

221L Residual Insecticide kills insects on contact up to 15 ft away

Active Ingredient

Lambda Cyhalothrin 0.05%

221L Residual Insecticide Aerosol

221L Residual Insecticide

221L is a Prescription Treatment brand residual aerosol that features lambda cyhalothrin. Effective against a wide range of insects, this easy to use aerosol is also System III compatible.



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Great Product
i love this product. it is used by terminx and i found this product sold online. i live in an apartment that doesn't provide quality pest services. i used this product exclusively and never see pests!!
July 10, 2014

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