An Australian first: aerial spraying to control mosquitoes was tried on Stradbroke Island in October. It was reportedly very successful.

https://www.redland.qld.gov.au/AboutRedlands/History/OurSuburbs/Pages/North-Stradbroke-Island-timeline.aspx

1969: North Stradbroke Island (Qld). Australia’s first aerial spraying of mosquitos.

An Australian first: aerial spraying to control mosquitoes was tried on Stradbroke Island in October. It was reportedly very successful.

https://www.redland.qld.gov.au/AboutRedlands/History/OurSuburbs/Pages/North-Stradbroke-Island-timeline.aspx