The effective concentration of the extract, galangal and ginger affect the substance dismissed the turnip aphids in a concentration of 4, 6 and 8 percent efficiency as repellent extract galangal solvent water temperature of 100 degrees Celsius, at a concentration of 8 percent, the highest compared with 82.80 and ginger extracts the solvent water temperature 37 ° c at a concentration of 8 percent is 72.91, which is the highest for a repellent of ginger extract.