1% to 2% is the usual spray solution (100ml – 200ml in water in a 10 liters fogging device or knapsack).
Spray once or more directly on the animals, even on the snout. The empty sty and the inside of lorries should be sprayed before loading. 1% dilution is sufficient for several 100m2 space or directly for 65 to 125 pigs. Repeat treatment when needed.
Never use undiluted solution!