If you have too much horse manure, but you still want to use it all, then consider composting it. Not only will you reduce its odour and volume, you’ll also reduce the number of flies in the garden too.

Composting is an exothermic process (i.e. generates heat), which is typically enough to kill off fly eggs and fly larvae. If the larvae are left to mature, you’d be inundated with flies. Composting will break down the organic fibre in the manure, and therefore the resulting compost will be much smaller in volume, taking up less space.

Another great advantage of composting is that the process converts the nitrogen in the manure into a less water soluble form. This means the compost will contain a form of nitrogen that is less likely to be washed away by rain. More nitrogen means bigger plants!