I appreciate all the advice given, and have noted all the "watch its"
However it becomes the lesser of two evils. I have high worm casts at more
than one per square foot. If they are still there, and still wet when the
time comes to carry out my first mowing, I know from past experience that my
rotary blades will deposit vast quantities of mud inside the covering - not
good for the machine nor for my knees.
Alistair