reporter: erian sa it only uses half the industry-standard amount of insecticides. the coany preferto employ natul allies le these ti beetle which are sprinkled over the roses teat the pests that tget them. ruth moo is alwaysooking for natural methods that other operators could also use. anton: all the water in this gutter thathe plant n't use we recyclet and use again. for ny things, iis very good. for the ecosystem, because nothing from the recyclewater or drained water goes to the ecostem. but ao it saves us fertilizers, becau after cycling the are stil fertilizers inside, and then we use it again and again and agai ruth: i think it is very costly to put up this system. for the small holder farmers, whare growg outside,t might be quite difficult for them to ha such a system. but for those who have the capacity, it will be a good solution, because it cuts down on their cost, but at e same time it is also good for the environment. reporter: there don't appear to be any toxins leaking into lake naivasha. but oserian is only one of many flower growers in the area. an