Use less of everything. Buy products without packaging or with packaging that can be recycled. All aerosol products are bad for the environment. It takes a lot of energy and resources to produce them, making them the most expensive type of throw-away packaging. Aerosols also use environmentally damaging propellants.
Chlorofluorocarbons destroy the earth's protective ozone layer.
Hydrocarbons are greenhouse gases and help create smog in cities. The use of aerosols should be avoided. Pump-action packs are preferable but there are other alternatives as well. Use herbal mosquito coils and incense. Fly screens, mosquito nets.