General Use: For outdoor and greenhouse use only. Unless otherwise stated below, the standard application rate for the listed species is 1 part of Doktor Doom Premium Fungicide Concentrate in 50 (2%) to 200 (0.5%) parts water. Spray all plant surfaces thoroughly, not exceeding 100 mL of diluted spray per 1 m²; if necessary, repeat sprays every 7 to 10 days unless otherwise noted below. For best control, begin treatment 2 weeks before disease normally appears or when weather forecasts predict a long period of wet weather. Alternatively, begin treatment when disease first appears and repeat at 7- to 10-day intervals unless otherwise noted below. Apply at the higher rate every 7 days or fewer following heavy rain or when the amount of disease is increasing rapidly. For outdoor flowers and ornamentals, do not exceed 10 applications per year. If possible, time applications so that 12 hours of dry weather follow application. Doktor Doom Premium Fungicide Concentrate may cause some copper toxicity on some plant species. During excessive moisture and cold, leaf spots can appear on copper-sensitive crop species. If concerned about sensitivity of plants, apply to individual plants or small areas of plants and wait to determine if plant damage occurs prior to treatment of larger areas.