Calathea grower opts for residue-free solutions
When insecticides for battle thrips no longer mold , plant life refinement and propagation company Damsigt considered discontinuing their most successful motley - Calathea zebrina . Fortunately , the combining of predatory mite Amblyseius swirskii with Nutrimite provender bring results . “ Thrips is now well under mastery , ” say Damsigt manager , Rob Matheusen ; “ saving both money and body of work . ” Based in Roosendaal in the Netherlands , Damsigt devotes 5 ha to the propagation and cultivation of Calathea zebrina ....