Tandem Insecticide


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Primary Active Ingredient:
11.6% Thiamethoxam, 3.5% Lambda-Cyhalothrin
For Use:
Indoor / Outdoor
32 oz
Time of Action:
Retreat at 21-day intervals
Active Ingredient Type:
Safe for Pets:

What is Tandem Insecticide

Tandem Insecticide is a concentrated blend of two very effective contact insecticides, carbaryl, and methoprene.

This versatile product kills both soft-bodied pests like aphids, whiteflies, psyllids, and mealybugs as well as insects with hard shells such as bed bugs, beetles, or spider mites. The formulation runs through the plant’s system quickly to provide fast relief from outbreaks of infestation.

Tandem Insecticide can be used in greenhouses or outdoor crops which include vegetables (potatoes), fruit trees (apples), stone fruits (peaches), and nursery products (plants).

This product contains an emulsifier so it mixes readily in water for watering applications making treatment easy on all types of plants including those prone to burning from foliar treatments such as some trees and vegetables.

Tandem Insecticide also contains an IGR (Insect Growth Regulator) Methoprene that inhibits larvae developing into adulthood to prevent further infestation or damage by adult insects.

Top Benefits of Tandem Insecticide

Tandem is an insecticide that has two contact insecticides. The first being a pyrethroid and the second being a neonicotinoid. So:

  • Tandem Insecticide can be used on turf and ornamentals.
  • This formulation of two contact insecticides is not a systemic insect if being applied to plants prone to burning from foliar treatments such as some trees and vegetables.
  • Differences between this product and a systemic: firstly it won’t move up the plant after application like a systemic would. Secondly it makes Tandem Insecticide ideal for use on all plant parts including foliage, bark, flowers, and fruit.

How It Works and How to Use It

The Tandem Insecticide is formulated to kill insects when they come in contact with it. That means that the insecticides are absorbed through their exoskeleton into their bloodstream, killing them quickly and efficiently.

  1. Tandem Insecticide can be used on turf and ornamentals.
  2. Make sure the plants are well watered before application. And avoid watering within 24 hours after application. So you don’t wash off the chemical.
  3. Use a push or rotary type sprayer and apply at the highest recommended rate for plants and label instructions until thorough coverage has been achieved.
  4. Do not exceed 10 applications per growing season for landscapes or ornamental purposes. Unless directed by a certificate of registration specific for additional uses or higher rates. (This product is approved for up to 10 applications.)
  5. Do not make more than one application every day as stated on the label.
  6. Application of Tandem Insecticide on ornamentals should only be made when insects are present.

We encourage taking precautions when using insecticides indoors – be sure to turn off fans and open up all windows so you don’t cause any fumes to build up in your home.

Just remember that Tandem Insecticide doesn’t leave behind an odor after use, so there’s no risk of that happening!

Tandem Pros and Cons

  • Syngenta Tandem is a well-known and trusted brand.
  • This Insecticide is an affordable option for insect protection.
  • It has been shown, to stop pests before they reach the interior of your home.
  • Tandem provides extra security against pests with one application that lasts up to 2 years.
  • No toxic fumes, spray, or droplets = it’s safe around kids and pets.
  • This product cannot be used where open flames are present.
  • Tandem can cause respiratory, eye, and skin irritation.
  • It’s not effective for issues with spiders.

Conclusion: Should You Buy Tandem Insecticide?

We recommend Tandem Insecticide to anyone who values a safe and effective product that is easy to apply.

  • This insecticide should be your go-to for all of the common garden pests you are trying to eliminate from your yard or home, including bed bugs, ants, mosquitoes, spiders, ticks, fleas, and termites.
  • It also kills other bugs like flies without harming beneficial insects such as bees.
  • Plus this non-aerosol formula can’t blowback on you so it’s safer than traditional sprays!

These features make Tandem an excellent choice if you have children or pets in the area where you will be applying it.

You’ll also love how quickly this solution dries because there won’t be any sticky residue left behind after application – it’s one of the easiest to use.

Based on 2 feedbacks of our visitors
Your review is awaiting moderation.
  1. I first heard about Tandem from a friend of mine. He told me how it worked, so I decided to give it a try for myself.

    I love being busy, so the amount of time I have to spend on this product is minimal. This complete review was really easy to use and I haven’t had any issues with pests since!

  2. This product does NOT contain an IGR, methoprene or otherwise. It also does not contain carbaryl which is the active ingredient in Sevin dust but has no relation to Tandem.

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