We had relatively abruptly with the onset of higher temperature, innumerable maggots who populated the compost bin and in a radius of about 2-3 meters were the compost bin around on the floor. And not a few, but en masse. The packaging of organic waste in paper bags has only a very moderate, but in no case have the desired effect. So ordered from the internet and this spray. The compost bin should be generously sprayed with it and also after filling the new bio-waste an ordinary charge should again be distributed. This may, if you look at the price, considered in the long term are quite expensive, and for waste.
My neighbor had the same exact problem and the problem is with acetic acid from the supermarket moved to the body. With also the exact same success. He sprayed with some acetic acid here and there the Bio-metric ton from. The maggots had disappeared abruptly even with him, he used much less acid than I spray this and he has paid 1.25 EUR for a bottle of acid at the grocery store. A slight odor limiting effect was observed even when the acetic acid, but also not significantly but only slightly.
In cost / benefit comparison I tend clearly to the acetic acid method in the future.