At our local fair, a representative of the dept. of Agriculture presented a demo about a type of destructive “Jumping Worm” which is difficult to distinguish from night crawlers....distinguished by response to being disturbed....the worm jumps wildly when disturbed. This worm’s castings destroy the soil nutrients. Nothing grows in the jumping worm castings. Trees die where the jumping worm settles.
“Jumping worms....”
Crap...I found a bunch of them on my driveway after a rain!