Onyx Mite And Powdery Mildew Killer 1 GAL Kills Spider Mites On Contact!--Dilution Rate Is 1/2 Oz Used Per Gallon Of Water Instantly Washes Off Powdery Mildew! 1 GAL Great For Most Gardens, Specifically Designed For Horticultural Plants. Can Use Through Harvest! 1 GAL Safe To Use,Skin Contact Is Ok----1 GAL