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Got Blackspot? Get Milk. A spray composed of one part milk and two parts water is the best answer to the disease. This simple solution, if applied weekly, controls blackspot as well as any synthetic fungicide, including Chlorotalonil.

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from eHow

The Best Homemade Spray for Black Spots on Roses

The Best Homemade Spray for Black Spots on Roses | eHow

from Better Homes and Gardens

Prune Your Roses Right

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Cider Vinegar Recipe for Black Spot - Mix 3 tablespoons of cider vinegar (I always buy Braggs as it has the mother culture) to 5 quarts ( 5 liters) of water. Add 1 teaspoon of vegetable oil and a good squirt of soft soap to make sure that your organic spray sticks to the leaves. Spray on plant early morning or evening to prevent leaf burn. Reapply as necessary, and always after it has rained, once the leaves are dry.

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Anti-Fungal Spray for Black Spot on Roses.Combine 1/2 a teaspoon of dish soap with 1/2 a teaspoon of vegetable oil in your spray bottle, and fill completely with water.Lightly shake, and then liberally spray this anti-fungal spray all over your roses, leaves, blooms and all.

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Treatment: According to author and horticultural professor Jeff Gillman, who has conducted extensive research on blackspot (on rose leaves) remedies, a spray composed of one part milk and two parts water is the best answer to the disease. He says this simple solution, if applied weekly, controls blackspot as well as any synthetic fungicide, including Chlorotalonil.

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from Gardening Know How

Black Spot On Roses: Best Solutions For Black Spot On Roses

To inhibit spread of Black Spot on Roses ... mix 2 tablespoons baking soda and a couple drops of dish soap per gallon of water and spray your roses

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Will try this for my roses this year: A tonic for black spot and powdery mildew on roses Roses, while beautiful, are often plagued with black spot or powdery mildew. I mix these ingredients into a tonic, which I spray on my roses: 2 teaspoons of baking soda and 1/2 teaspoon of liquid soap or Murphy's oil soap in 2 quarts of water. The tonic protects the roses for months.

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"According to author and horticultural professor Jeff Gillman, who has conducted extensive research on blackspot remedies, a spray composed of one part milk and two parts water is the best answer to the disease. He says this simple solution, if applied weekly, will control blackspot as well as any synthetic fungicide, including Chlorotalonil."

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