Cool 'cuyapo'

This tub was once filled with with cloudy bath water and teemed with mosquito larvae.

Following a tip from a gardener who is into biocontrol I introduced the plant called cuyapo into the tub and put in feeder fishes in the water. In a few days the water cleared up and the mosquito larvae disappeared.

My guess is that the cuyapo roots clean the water making it easy for the fishes to spot the larvae.

As we try to find ways to control mosquitos, especially the diseases carrying kind, using this combination of cuyapo and larvae eating fishes might be more effective than ovicidal trap being pushed by the Department of Science and Technology.