The Doff Universal Bug Control is a liquid formulation containing a unique blend of plant-safe, pest-control surfactants with a physical mode of action for control of plant pest species, including whitefly, aphid, spider mite, mealybug, scale, psyllid and also controls mildew. It is suitable to use at any time of year and can be applied up to and including the day of harvest. They are specially formulated to improve leaf colour, vigour and shine. This bug control works by physical action, and there is no risk of the pests developing resistance. Size: 1L. Usage Instruction: Shake well before use. Always read the label fully before use. Rotate the spray adjuster to ON. Spray both sides of the leaf surfaces until thoroughly wet. As Doff Universal bug control works by physical action, it must be directly applied to pests to achieve control. Rotate the spray adjuster to the 'OFF position after use and before storage. When to use: Use at the first signs of infestation and repeat weekly for maximum effectiveness. Do not spray during hot, dry conditions, as this may result in plants being scorched. If rain falls shortly after applying the product, effectiveness may be reduced, and further re-treatment may be required. It is recommended that the product be applied to a small area on unusual varieties and observed for any adverse effects.