Nature Safe Lawn Aid 5ltr by Hygeia is a natural and safe lawn pest control solution. It works by generating a 100% natural enzyme (called chitinases) that helps to deter the presence of soil and lawn pests such as chafer grubs, and leather jackets. Our unique wild Atlantic Seaweed (called Laminara Digitata) and Chitin blend is enriched with minerals and amino acids that not only helps deter pests but also enhances nutrient uptake and encourages thicker, greener lawns.