Ant Killer Spray, 1.5 litres from Defenders is a ready-to-use spray for killing and controlling ants. The fast-acting contact killer is suitable as a treatment in homes, patios and gardens. Treats over 70 sq. m and contains Cypermethrin and Benzalkonium Chloride to ensure it is an effective means of killing and controlling insect infestations and the germs they leave behind. Also useful in the control of woodlice, beetles, cockroaches and silverfish.