Searles 200ml Herbicide Additive Spredmax is a non-ionic surfactant (wetting agent), an additive to herbicides, poisons etc to improve "sticking" performance and thus improve the success of the applied chemical or liquid fertiliser. Ideal for adding to prepared solutions of fungicides, pesticides and herbicides, it may also be used to improve foliar applications of soluble and liquid fertilisers. The cap is a convenient measuring tool to use when adding it to up to 1000Lts of pre-mixed chemical. Searles 200ml Herbicide Additive Spredmax helps improve the spray solution ability to stick to leaves, which is important for plants with waxy leaves, or those that are hard to wet. This is particularly important for grasses and weeds. Most herbicides kill weeds via direct leaf contact and Spredmax maximises spray contact by preventing spray droplets from beading on the leaf surface, increasing droplet contact area thus improving spray efficiency and saving cost.