How does Sumilarv 0.5G work?

SumiLarv 0.5G does not directly kill mosquito larvae, but disrupts the normal process of insect development which results in pupal mortality and prevents adult emergence.

Pyriproxyfen affects the physiology and morphogenesis; reproduction and embryogenesis specific to insects. It inhibits the life cycle at the pupal/adult moult, allowing the larvae or pupae to develop normally without being able to mature into adults. Pyriproxyfen also affects the viability of exposed eggs:

Following application to the aquatic breeding sites of mosquitoes, the adult mosquito population is quickly impacted, reducing biting rates and disease transmission.