A good friend of mine from north Louisiana, has a 50 acre pond on his property. It used to be fantastic crappie fishing. Then the LDWF decided we needed beavers to make more lakes. We caught the crappie around live willow trees. I was cleaning a crappie and noticed a green gooey liquid in it’s stomach. Curious as to what the crappie were eating, I took a sample of the gooey stuff and looked at it under a microscope. Midge larvae!! Like mosquitoes but they don’t bite. Explains why green and chartreuse work so well. Back to the beavers. So the beavers killed every willow tree on the pond. Very few crappie!! Then the LDWF decided we needed more alligators!! Not so many beavers now and more crappie!!