What are they?
Over the late autumn through to spring period, you will notice small mounds of soil on the surface of the lawn.
Where have they come from?
The casts are the work of earthworms that live in the root zone of the soil. There are five types of casting worms found in British soils and numerous non-casting worms too. The worms eat the soil, digesting and extracting the goodness from it as it passes through their bodies.
The by-product of their diet is the casts which are pushed up as they work through the soil, cleaning their burrows, much like a mole hill.
Download our Worm Cast control leaflet
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