Standing Water Heats Greenhouses
Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Team Making It visited the Clemson Student Organic Farm in Calhoun Downs recently. We talked with The farm manager, Shawn Jadrnicek, and filmed his innovative designs for passive heating systems that keep the greenhouses warm in the winter with a minimum of fuel use. One concept is small lagoons located directly in front of the greenhouses which reflect heat back into the plastic structures during the winter when the sun is low. I asked if these lagoons didn’t cause horrible mosquito problems in the summer. But not to worry, Shawn have it covered. He collects mosquito minnows from the nearby ditches and puts them in the water features. His experience is that female mosquitoes preferentially lay eggs in the lagoons where the larvae are gobbled up by the fish and their actual mosquito problem has decreased with the addition of these managed standing pools of water.