Resolva Moss Killer is a ready-to-use formulation in a trigger spray that’s comfortable to handle and ready to use straight away- no dilution required. It effectively kills moss and algae on natural and permeable surfaces such as gravel, block paving and gravel. Do not use on lawns. This easy-to–use spray gun gives you piece of mind that you can quickly rid the moss and algae which forms over time in paving cracks and on patios so you have spotless outdoor spaces in time for entertaining in and enjoying the garden. See results in 24 hours from Resolva Moss Killer ready-to-use spray with unique non-drip trigger. Follow full instructions given on the back of the spray gun and store in a cool, dry place. For the most effective results use in temperatures over 15°C in dry, still periods. If rain falls within 12 hours after use you may need to re-apply. Do not spray in windy weather where spray may drift onto other garden plants. Re-application at 3-4 week intervals may be needed. 1 litre – enough for 10 square yards (square metres). Resolva moss killer contains Pelargonic Acid. Use plant protection products safely. Always read the label and product information before use.