flowerbug
Garden Master
When I use a bucket of water to collect Japanese Beetles or June Bugs I put a drop or two of dish washing liquid in it to break the surface tension so they sink better. That never hurt my chickens when they ate them.
i do that too, but figured that if the ducks are there and eating them they're not going to get away very far...
i did find out that JB's need to be drowned for a pretty long time to kill them. they go dormant and look dead, but they're not...