Pests & Ailments MENU TOGGLEMENU TOGGLECommon Orchid Pests AphidsFungus GnatsMealy BugsScaleSpider MitesThrips Pesticides Biological Controls of Orchid PestsPesticide UseChemical Selection for Pests and DiseasesKnowing When to Treat (and when NOT to)Pesticide Selection GuideCommercial Pesticide GuideHome Remedies Diseases & Ailments Bud BlastRoot Rot – Causes & CuresRescue Plants with No RootsOrchid Plants Losing Lower LeavesEdema Additional Guide to Pests, Diseases