BONIDE® Copper Fungicide Dustdeveloper
BONIDE Copper Fungicide Dust is made of 7% copper sulfate and is a modern take on the old Bordeaux (or Bordo) Mix of copper sulfate and lime. Approved for use in organic gardening and on edibles, this formulation controls fungal diseases, but is especially effective on peach leaf curl and blight diseases. Approved for use in organic gardening and on edibles, this formulation is intended for small garden use only. If you prefer a spray on product, mix BONIDE Copper Fungicide Dust with water or use BONIDE Liquid Copper Fungicide.
BONIDE Copper Fungicide Dust controls fungal diseases by damaging enzymes and proteins critical to fungal growth. Control of diseases depends on thorough and complete application to both tops and the underside of leaves. Use lower rates when plants are young and higher rates when plants are well developed, during heavy periods of rain (good for fungi) or when disease symptoms are severe.