Zenivex® E20 Mosquito Adulticide
A new alternative in adult mosquito control
Zenivex® E20 from Central Life Sciences is a new adulticide for mosquito abatement professionals who want to provide reliable control of adult mosquito populations. Zenivex® E20 is a low odor formulation that works on contact and has these advantages:
- No Piperonyl Butoxide (PBO), no synergist
- Ability to use diluted or undiluted
- Quick, permanent knockdown
- Low use rates
- Environmental Protection Agency (EPA) reduced risk classification
The active advantage — Etofenprox
The active ingredient in Zenivex® E20 is Etofenprox (20% by weight), a unique molecule that is new in the control of adult mosquitoes. The EPA has classified Etofenprox as reduced risk, making Zenivex® E20 the ideal choice in mosquito adulticides. Etofenprox also has the following advantages:
- Low odor
- Non–ester pyrethroid
- Unique molecule
- Effective on organophosphate resistant mosquitoes
- Sodium channel blocker
- Improved safety for operators and bystanders
- History of effectiveness
Etofenprox presents a low toxicity to birds and dried foliar residues are not harmful to honeybees. The following chart shows comparative acute toxicities through LD50 measurement.
*An LD50 is a measure of toxicity. The longer the LD50 bar, the lower the toxicity. Compared to the active ingredient in other leading mosquito control products, Etofenprox, the active ingredient in Zenivex® E20, is the least toxic.
Made by professionals for professionals
Zenivex® E20 offers a positive environmental profile. It is an oil-based formulation for use in Ultra Low Volume (ULV) and does not require dilution. It is ready-to-use for hand, ground or aerial application, and requires no aquatic setbacks.

