MetaLarv™ S-PT Launch Marks Innovative Biorational Mosquito Growth Regulator for Use in Public Health


LIBERTYVILLE, IL., April 17, 2012 – Valent BioSciences Corporation (VBC) today announced the official launch of their latest biorational larvicide MetaLarvTM S-PT Mosquito Growth Regulator for use in professional mosquito abatement programs in the U.S. MetaLarv S-PT features Triple Release Technology an advanced formulation that provides several key improvements over current (S)-methoprene products.

Biorationals are products derived from natural or biological origins that are highly specific in their activity and have low impact on workers and the environment. MetaLarv S-PT contains the active ingredient (S)-methoprene, an insect juvenile hormone analog that prevents the development of mosquito larvae into the adult mosquito stage where certain species may be capable of transmitting harmful disease such as West Nile virus, malaria, dengue fever, and encephalitis.

The addition of MetaLarv S-PT to the VBC product portfolio demonstrates our commitment to working with our customers to develop custom solutions while constantly striving to improve public health in an environmentally sustainable way, said Ernest Dankwa, Senior Global Business Manager for VBCs Public Health and Forestry Business Unit. Our goal is to provide a continuum of solutions based on specific habitats that are attractive to mosquito breeding.

Unveiled at the recent American Mosquito Control Association meeting in Austin, Texas, MetaLarv S-PT was developed in collaboration with the mosquito abatement community to create a pre-flood, residual product that reduces operational costs while improving on many of the issues faced with (S)-methoprene products today. MetaLarv S-PT’s unique spherical, dust-free pellet design works in combination with Triple Release Technology to allow product to be applied both pre-flood and directly into water, at more effective low-rate applications, improved aerial application swaths and better point-source coverage.

MetaLarv S-PT joins VBCs biorational mosquito larvicides, VectoMax®, VectoLex®, and Teknar® Biological Larvicides to provide the public health industry’s most comprehensive range of target-specific, biorational larvicides for mosquito abatement professionals and health care officials around the globe.

For more information visit or contact a Valent BioSciences Corporation technical sales representative.


About Valent BioSciences Corporation
Headquartered in Libertyville, IL, Valent BioSciences is a subsidiary of Tokyo-based Sumitomo Chemical Company. Valent BioSciences is the worldwide leader in the development, manufacturing and commercialization of biorational products, with sales in over 90 countries around the world. Valent BioSciences is an ISO 9001:2008 Certified Company. For additional information, visit the company’s website at

Media Contact:
Barbara Wendling
Valent BioSciences Corporation

Download Press Release


Related News

Valent BioSciences celebrated the grand opening of the new Venburg Wing at the...
WHITE CITY, Ore., September 21, 2023 – To meet the increasing demands and...
Broadening its commitment to sustainability and corporate social value, Valent BioSciences LLC formally...
The Pest Management Regulatory Agency (PMRA) recently approved, for the first time, drone...
Valent BioSciences LLC, a global leader in the discovery, development, and commercialization of...