Tandem ZC

Tandem ZC is a public health insecticide manufactured by Syngenta. It combines two active ingredients, Thiamethoxam 11.6% and Lambda-cyhalothrin 3.5%, in a ZC formulation that combines capsule suspension and concentrated suspension technologies.

The product uses a dual-action mechanism to control a broad range of insect pests, including mosquitoes, houseflies, sandflies, bedbugs, fleas, cockroaches, ants, and scorpions.

Product Features

● Contains two active ingredients that work through different modes of action.

● Formulated using microencapsulation technology (iCAP), designed to provide extended efficacy and a gradual residual effect.

● The website claims effectiveness against more than 90 types of insects.

● Designed for use in residential buildings, restaurants, warehouses, hotels, shops, and markets, where permitted by the product label.

● The website describes it as having a light to nearly unnoticeable scent.

● The formulation is intended to adhere to surfaces and provide prolonged pest control.

● Can be incorporated into Integrated Pest Management (IPM) programs.

How It Works

Thiamethoxam: Acts on insect nicotinic acetylcholine receptors, disrupting normal nervous-system function.

Lambda-cyhalothrin: A pyrethroid insecticide that affects sodium channels in insect nerve cells, disrupting nerve signaling and leading to paralysis and death.

Together, these ingredients provide two different modes of action against susceptible insects.

Technical Specifications

● Trade name: Tandem ZC

● Product type: Public Health Pesticide

● Formulation type: ZC — capsule suspension combined with concentrated suspension

● Active ingredient 1: Thiamethoxam 11.6%

● Active ingredient 2: Lambda-cyhalothrin 3.5%

● Manufacturer: Syngenta

● Country of origin: United States of America

● Package size: 250 ml

● Scent: Light to nearly unnoticeable

Directions for Use

The website lists the following dilution rate:

● Dilute 10–20 ml per 1 liter of water.

● Apply by spraying areas where insects hide or surfaces where they are present, such as corners, areas under furniture, cracks, and ventilation openings.

● The website claims an effective residual period of up to 3–4 months, depending on environmental conditions and the treated location.

Important: Confirm the correct dilution rate, approved application sites, and residual claims against the original product label registered for Saudi Arabia before use.

Safety Precautions

● Follow the official product label and use the required protective equipment.

● Avoid contact with skin and eyes and avoid inhaling spray mist.

● Keep children, pets, food, and food-preparation surfaces away from treated areas.

● Do not spray food, utensils, or surfaces that come into direct contact with food.

● Follow all label instructions for ventilation, drying, and re-entry.

● Do not assume the product is safe around pets or children simply because it is intended for public-health pest control.