The uncontrolled use of chemical fungicides has created different types of environmental and toxicological problems. The popularity of botanical pesticides is once again increasing and some plant products are being used globally as antimicrobials against powdery mildew of mango due to their relatively safe status and wide acceptance by the consumers. The plant product “Ramban” (extract of forest herbs) at 0.1 was tested against powdery midew of mango caused by Oidium mangiferae at Regional Fruit Research Station, Vengurle. From experiment it is found that, “Ramban” (0.1 conc.) with 26.57 percent disease incidence was effective in controlling the powdery mildew disease as compare to control in which 36.57 per disease incidence was observed.