Zoëcon Corporation, a Palo Alto, California company, was founded by a group of prominent scientists. One of the scientists was Dr. Carl Djerassi, a pioneer in the synthesis and development of the first birth control pill for women.

Zoëcon was the first company to develop and use insect growth regulators (IGRs), ingredients that mimic juvenile insect growth hormones and disrupt immature insects' growth cycles. As a result, target insects cannot reach the adult stage, where they often cause health or economic problems. Just as important, insect pests cannot breed and create new generations.

Zoëcon acquires Thuron Industries, the originators of the flea collar.

Zoëcon registers the insect growth regulators, kinoprene, created for whitefly control, and methoprene, created for horn fly and mosquito control.

Zoëcon registers the insect growth regulator, methoprene, for flea control purposes.

Zoëcon is acquired by Sandoz Agro, Inc., a pharmaceutical and crop protection product manufacturer.

Zoëcon registers the insect growth regulator, hydroprene, for cockroach control.

The EPA grants special exemption for the use of Apistan® Anti-Varroa Mite Strips in beehives.

Zoëcon is one of ten companies named to the National Environmental Development Association's Earth Day Honor Roll.

Zoëcon registers hydroprene for use in food-handling establishments.

Central Garden and Pet acquires the North American rights to Sandoz Agro, Inc.'s animal care and pest control businesses.

Completion of Wellmark International's Jayhawk, Kansas facility, the only place in the world where FDA grade methoprene is manufactured.