Worms Collecting at the Top of Bin, Not in Food
(Albion, CA USA)
I've been using a plastic 3-level bin system for 3 years. Now I see few worms in the food source and lots collecting around to top edges of the top bin, as if they wanted to escape.
What does that indicate? What should I do about it?
Thanks in advance for your help.
Tom, on northern California coast