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Synergists

What are synergists?

Synergists are chemicals that make insecticide ingredients more effective at killing pests. They generally are low in toxicity for humans. While synergists have very little impact on insects on their own, they are included on pesticide product labels under the heading 'active ingredients.' Common insecticide synergists include piperonyl butoxide and MGK-264 (n-octyl bicycloheptane dicarboximide).

Where are synergists found?

Synergists can be found in products that kill insects, fungi, and worms. They are commonly mixed with natural pyrethrins or man-made pyrethroid insect-killing products. It is rare that people would be exposed to a synergist alone.

How do synergists work?

Many pests have the ability to break down pesticide chemicals, like pyrethrins, and bounce back from the initial paralysis. Synergists slow or stop the break down process and make the insecticides more toxic to the pest.

Keep these tips in mind:

If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email us at npic@ace.orst.edu.

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Last updated October 04, 2016

Related Topics:

What are pests?

Learn about a pest

Identify a pest

Control a pest

Integrated Pest Management

What are pesticides?

Herbicides

Disinfectants

Fungicides

Insecticides

Natural and Biological Pesticides

Repellents

Rodenticides

Other types of pesticides

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