Tackle ants by watering Nemasys No Ant containing natural nematodes (steinernema feltiae) directly into the ants nests. Nemasys No Ant controls ants of all colours (including red ones) in lawns & borders & should be applied when the ants are present. Nemasys No Ant needs a soil temperature of 10 degrees C & is a perishable product (it will keep for 2 weeks in the fridge). Each pack treats 16sq metres.