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Illegal, Counterfeit, Canceled, and Restricted Pesticides

Illegal Pesticides

Illegal pesticides include products sold or distributed in the U.S. without being evaluated and registered by the U.S. Environmental Protection Agency (EPA). They may be sold or distributed on the street, online, or in stores. Illegal pesticides are often sold without directions or warnings on their labels. Sometimes their packages make false claims like "harmless to human beings and animals" or "safe to use," but they could be more toxic than legal products.

Illegal pesticides may enter the United States from foreign countries. They may be sold online where they are difficult to regulate. Even if they are legal in a different country, they might be illegal in the U.S. Common illegal pesticides include "Tres Pasitos", "Miraculous or Chinese Chalk", or "Sniper/No Pest with DDVP". Contact your state pesticide regulatory agency with questions about illegal pesticides.

It is also illegal to distribute misbranded or adulterated pesticides and pesticides with missing or incorrect label information. This includes pesticides sold without their original packaging.

Counterfeit Pesticides

Counterfeit pesticides are illegal. Their packaging may look like a legal product, but their contents do not match the label. Counterfeit products may have different concentrations of active ingredients than the legal version. They may contain cheaper, more toxic, ingredients. Because of this, counterfeit pesticides can be ineffective or dangerous to people, pets, and the environment. One example is counterfeit versions of flea and tick treatments for dogs and cats.

Canceled Pesticides

The U.S. EPA cancels pesticides when their registration expires and is not re-registered. Pesticides may also be canceled for other reasons. For example, the company may request cancellation, or the EPA could remove uses based on new knowledge about health risks. You can search for information about active and canceled products here. The EPA publishes cancellations and other changes in the Federal Register.

Restricted Pesticides

Only certified pesticide applicators can buy or use restricted use pesticide products. These applicators undergo required training, testing, and education. Restricted use products must include the text "Restricted Use Pesticide" on the front panel of the label.


Additional Resources:

If you have questions about this, or any pesticide-related topic, please call NPIC at 800-858-7378 (8:00am - 12:00pm PST), or email us at npic@oregonstate.edu.

Last updated November 25, 2025