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When encountering pests in your home or garden it’s best to have an insecticide that makes quick work of the insects so they don’t continue to cause damage and multiply their population.. A new class of chemicals that does a great job of doing this are known as neonicotinoids. One such active ingredient among this class which is notable is thiamethoxam.

Solutions Pest & Lawn is proud to carry insecticide products which contain thiamethoxam. Here on this page, you can shop products which contain this powerful neonicotinoid active ingredient and also learn some  interesting facts about the origins of thiamethoxam and why it works so well in controlling pesky insects in and around the home.

What is Thiamethoxam?

Thiamethoxam (chemical formula: 3-[(2-Chloro-1,3-thiazol-5-yl)methyl]-5-methyl-N-nitro-1,3,5-oxadiazinan-4-imine) is a common active ingredient in a number of broad-spectrum insecticides for pest control . Thiamethoxam is synthetic and is known as a second generation neonicotinoid compound belonging to the chemical subclass the thianicotinyls. Neonicotinoids are a new class of insecticides chemical related to nicotine. The name literally means “new nicotine-like insecticides” Much like nicotine, thiamethoxam acts on certain types of receptors in the nerve synapse.

Aside from being a general insecticide, thiamethoxam can also be used as a foliar application, a soil treatment and a seed treatment. Thiamethoxam is systemic, meaning it can be rapidly taken up by the plant, moving through from the leaves all the way down to the roots.

Thiamethoxam was first developed by Syngenta in 2002. Thiamethoxam effectively controls sucking and chewing insects, including aphids, whitefly, thrips, ricehoppers, ricebugs, mealybugs, white grubs, potato beetles, flea beetles, wireworms, ground beetles, leaf miners among others.

How Does Thiamethoxam Work?

Thiamethoxam is a neonicotinoid insecticide. This means that the chemical behaves like the addictive drug nicotine. Similar to nicotine, thiamethoxam acts on certain kinds of receptors in the nerve synapse. Thiamethoxam’s mode of action is achieved by disrupting inhibiting stimuli transmission within the nervous system of the targeted insect when that insect either ingests or absorbs the poison into its body.

This results in interruption of brain signals throughout the body of the insect. In as quickly as 30 minutes, the poisoned insect undergo debilitating effects of excitement, then paralysis, and finally death. Thiamethoxam are much more toxic to invertebrates, like insects, than they are to mammals, birds and other higher organisms.  Thiamethoxam works at all stages of insect development, whether they are an egg, larvae or an adult. Insects are affected mainly by ingestion, and may be affected by some forms of contact as well.

View our selection of thiamethoxam based formulated products below. For more information about thiamethoxam or other active ingredients in our pesticides, please call us with your questions at 800-479-6583 or email us at askapro@solutionsstores.com

Featured Products Which Contain Thiamethoxam

Tandem Insecticide - A microencapsulated insecticide with dual modes of action to control a wide range of pests both indoors and outdoors. Tandem insecticide combines the power of two proven active ingredients, lambda-cyhalothrin and thiamethoxam, to provide a double assault on pests with one product. Formulated with proprietary iCAP™ technology, Tandem provides quick knock down and long-lasting control of a broad range of pests.


Optigard Flex Liquid Insecticide - Non-repellent chemistry with low use rates and flexible application methods to control pests both indoors and out. Optigard Flex, with the active ingredient thiamethoxam, is a non-repellent, liquid insecticide that is active against insects by both contact and ingestion and can be used both indoors and out.


How safe is Thiamethoxam?

Thiamethoxam has been classified by the by the EPA as harmful to humans if swallowed. It is highly toxic to bees and midges. Thiamethoxam is non-toxic to fish, daphnia and algae and mildly toxic for birds.


Applicators of thiamethoxam have reported to have skin or eye irritation, dizziness, breathlessness, confusion, or vomiting after being exposed.


When handling products containing thiamethoxam, we recommend using gloves and protective clothing when spraying such products. Please use the product according to the instructions on the label and follow closely the safety measures on the label when applying the product.

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