Red Logwood Dye is a powdered dye that when dissolved in water gives your traps dark coloring. Imported from America.
One pound (approx 453grams) will treat 1-2 dozen large traps or 2-4 dozen smaller traps. Use one pound of dye to 18-19 litres of water.
Add the logwood dye to boiling water and simmer for 1 hour.