I have a soft buffalo lawn in sandy perth soil. After rain or watering there are numerous small piles of soil all over the lawn. (about 3 or 4 piles per square metre) When the lawn is dug up there is a tunnel in the soil about the thickness of a pencil which doesn't seem to lead anywhere. I thought it may be mole crickets but they don't seem to be doing any damage. Any advice please.
08 October 2011 12:45 PM
It sounds as though you have a very healthy worm population in your lawn. After rain they build little pyramids of dirt. High worm numbers in your soil will give excellent aeration throughout the soil profile and help promote a strong root system.