Around 800,000 bottles of Super Malatab, a powerful insecticide for spraying on mosquito nets, will be distributed free of charge next month to importers and wholesalers in Phnom Penh and along the border by Population Services International (PSI). Henrietta Allen, a malaria technical adviser for PSI, said on Tuesday that wholesalers’ will be asked to bundle one bottle with each net before they are distributed. “One of the most effective ways to protect you and your family from getting bitten is to sleep under an insecticide-treated bed net every night,” she said.