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Dichlorovos DDVPddvp 

There are a number of different ways you can tackle pest problems but targeting flying insects can be particularly difficult. However there is one active ingredient that is often used as a fumigant to essentially “gas out” flying insects like mosquitoes and flies that is particularly effective and that is dichlorovos, also abbreviated as DDVP.

On this page we want to share with you some background on dichlorovos, its origin and why it works so well to eliminate problem pests in the household. Here you can also shop the pesticide products we have in stock which contain dichlorovos

What is Dichlorovos?

Dichlorovos (chemical name: 2,2-dichlorovinyl dimethyl phosphate) is an organophosphate and is an active ingredient used to control household pests and protect areas of stores products from pest infestations. Dichlorovos was first registered in 1954 under the trade name Vapona™ by Shell Chemical Company in the form of pest strips.

In 1955, it was discovered that crystalline trichlorfon, another organophosphate pesticide, gave off a vapor which was capable of killing insects. That vapor was dichlorvos, which has since been developed for insect control in enclosed spaces  The chemical is used primarily in pest strips form which has long been used by entomologists, museums, and other conservators for museum fumigation for decades.

How Does Dichlorovos Work?

Dichlorovos, like other organophosphate insecticides, has a mode of action which involves acetylcholinesterase, associated with the nervous systems of insects. Dichlorovos interferes with the activities of cholinesterase, an enzyme that is essential for the proper working of the nervous systems of both humans and insects. It is claimed to damage DNA of insects.

View our selection of fungicide products which contain dichlorovos below. For more information about dichlorovos or other active ingredients in our chemicals, please call us with your questions at 800-479-6583 or email us at askapro@solutionsstores.com.

How is Dichlorovos Used?

Dichlorovos has shown to be effective mushroom flies, aphids, spider mites, caterpillars, thrips, and whiteflies in greenhouse, outdoor fruit, and vegetable crops. It is also used in the milling and grain handling industries and to treat a variety of parasitic worm infections in dogs, livestock, and humans. It is fed to livestock to control bot fly larvae in the manure.


It acts against insects as both a contact and a stomach poison. It is available as an aerosol and soluble concentrate. It is also used in pet collars and "no-pest strips" in the form of a pesticide-impregnated plastic; this material has been available to households since 1964 and has been the source of some concern, partly due to its misuse.


Is Dichlorovos Safe To Use?

Dichlorovos has appeared in the news a lot as an unsafe product but this is largely due to misuse of the product and not following the directions on the label properly. It is important to be extra careful when applying dichlorovos products because since it is a gas type product it can be harmful to breathe in the product.


People can be exposed to dichlorvos in the workplace by breathing it in, skin absorption, swallowing it, and eye contact. Since it is an acetylcholinesterase inhibitor, symptoms of dichlorvos in humans can range from weakness, headache, tightness in chest, blurred vision, salivation to  sweating, nausea, vomiting, diarrhea, abdominal cramps, eye and skin irritation among other symptoms.


We recommend following the label very closely to utilize the product properly to ensure that no one except the target insect is harmed by the product.

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