Are you dealing with mosquitos around the house? At certain times of the year, mosquitos go crazy and arrive in your garden, en masse!
The best product to use for most householders is David Grays Mosquito & Spider Spray.
It's equally effective against spiders, which can be a real problem in Australia. If you're afraid to walk into your garden shed, it's time to take control of the situation.
Active ingredient: 117g/L Fenthion