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Tandem Insecticide

Usually Ships in 1-2 days
Insecticides usually contain a key active ingredient to battle pest insects. Tandem breaks the mold and contains two active ingredients to provide quicker and long-lasting pest control. Not only does it knock down pests outdoors but also indoors where they breed and hide. It's labeled for use in food-handling areas, so it's ideal for controlling roaches and various pantry pests.

Features and Specifications

Active Ingredient(s) Thiamethoxam - 11.6% Lambda-cyhalothrin - 3.5%
Pest Control Ants, Beetles, Caterpillars, Cockroaches, Fleas and Ticks, Mites, Mosquitoes, Wasps, Wood-destroying insects and more
Sale Prohibited CT, NY
Shipping Rate Free
EPA Registration 100-1437

How Tandem Insecticide Works

Tandem contains two key ingredients: thiamethoxam and lambda-cyhalothrin. Together, they treat numerous crawling and flying insect pests indoors and outdoors. Lambda-cyhalothrin is a pyrethroid, which targets the central nervous system. It works on contact and causes paralysis and death. Thiamethoxam is a systemic neonicotinoid, which moves through a plant and kills destructive pests like aphids and whiteflies. Because of these two ingredients, Tandem insecticide provides quick knockdown and residual activity to kill nuisance pests.

Where to Use Tandem Insecticide

Use Tandem in and around buildings and transport vehicles. It's useful as a spot, a perimeter and a crack-and-crevice treatment. Tandem's liquid formulation makes it easy to mix in a tank and to apply in numerous sites such as homes, offices and warehouses. Some of the most common target areas for use include:

  • Closets
  • Decks
  • Entryways
  • Garages
  • Hotels
  • Landscapes
  • Mulch
  • Offices
  • Residences
  • Trucks
  • Wineries


Target Pests

Tandem controls more than 90 different crawling and flying insect species. It targets ants, beetles and roaches on the ground and mosquitoes, cluster flies and wasps in the air. It also effectively kills pantry pests such as flour beetles and rice weevils. This insecticide also controls occasional invaders, including:

  • Boxelder bugs
  • Centipedes
  • Millipedes
  • Pillbugs
  • Stinkbugs


Reasons to Use Tandem Insecticide

  • Contains two ingredients for faster and long-lasting results
  • Penetrates leaves for systemic control
  • Works in cracks, crevices and voids to target nests
  • Safe to use in food-handling areas


Tandem Kills More Than 90 Pest Species

Kill and control pest infestations indoors and outdoors with Tandem insecticide. It targets numerous species in buildings, lawns and transport vehicles and prevents plant-feeding insects from destroying ornamentals and other vegetation. Whether it's ants, carpet beetles or whiteflies, Tandem eliminates pest infestations and keeps them away for several weeks.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulations.


For additional information on this product please reference the CDMS label database listed below



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