Water and Mosquitoes
Giant Coreopsis (Fri, 08 Apr 2016 17:29:16 PDT)

Lee wrote"you can also buy a type of bacteria that is lethal to mosquito larva. I get it at the local hardware chain"

I have two ponds and a marsh. The anti mosquito bacteria discs that Leo mentions work like a champ and have not harmed my many fish or amphibians ... or plants.