Which of the following products is used for flea control and contains the ingredient methprene?

The product used for flea control that contains the ingredient methoprene is Precor. Methoprene is an insect growth regulator (IGR) that disrupts the life cycle of fleas by preventing them from developing into adults. This molecule effectively controls flea populations by targeting eggs and larvae, which helps in breaking the reproduction cycle.

Precor is specifically formulated for pest control in environments where fleas are a concern, making it highly effective for use in various settings such as homes, pet areas, and commercial spaces. Its ability to interfere with the growth and development of flea populations is key to long-term management of infestations.

In contrast, Gentrol, while also an IGR, contains the ingredient hydropene and is not primarily focused on fleas. Termidor and Altriset are products designed for termite control and do not contain methoprene or target fleas.