tick killz (32 ounce concentrate) tick killz tick killz is a 100% all-natural insect control product. available in convenient liquid concentrate form, simply dilute and use your preferred sprayer applicator, or combine with a hose sprayer attachment for easy application. tick killz effectively controls ticks, mosquitos, fleas, and other insects found in the yard. made from all-natural ingredients such as: cedar oil; peppermint oil; and naturally derived phenol esters. tick killz is 100% pet and family safe.