Maggot Death for Livestock Farming To be used as a means of controlling fly larvae and rat-tail larvae in cattle, pig and poultry habitats. Apply to places where there is fresh manure and to manure in cellars. Dimilin Spray Powder 25% is effective against the larval stages of various insect species. In a number of cases, the product also prevents the eggs from hatching. The drug has a slow onset. To prevent damage, timely application is therefore desirable, i.e. on eggs or young larvae. Every summer it hits again Flying, flying and more flies in the stable, in the kitchen, on the terrace, in the tank room and so on When you start fighting flies the moment you see the flies, it becomes mopping with the tap open. By fighting the maggots, you prevent a fly infestation. The flies you see are only 15% of the total population, the rest.