Copper Garden Dust by Bonide
Bonide Garden Dust
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This product is both an insecticide which kills insects and a fungicide which controls fungal diseases. The active ingredient that controls fungal disease is copper from copper sulphate.
The dust is colored light green so it does not show up too much after it is applied. The container is itself a dusting device or you can put the material in a dusting tool To use the can just shake it to fluff up the powder. Then press the sides of the can with your fingers, using a rapid motion for a fog effect. Cover the foliage with a thin film of dust, both top and undersides of the leaves.
You can use this product as a spray, but there are other liquid fungicides that are easier to use.
You apply this when the fungal disease appears or when you expect it to appear based on last year's experience. Then apply it again every 7 to 10 days or after a rain until control is reached.
Bonide Copper Dust
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BONIDE COPPER DUST OR SPRAY (BORDO)
7% Copper sulfate for controlling early and late blight, leaf spots, downy mildew, anthracnose and certain other fungal diseases on vegetables, ornamentals, flowers and fruits.
Won't burn plants.
