How to Make Your Own Spray to Prevent Black Spot on Roses
Black Spot is a fungus that attacks rose bushes. Black Spot spores are spread through water, rain and humidity makes Black Spot worse. Always water your Roses at the bottom of the plant. As the name says, it causes black spots on the leaves. Black Spot also causes the leaves to turn yellow and fall off, leaving you with leafless shoots. This spray helps to prevent Black Spot from attacking your Roses, it's not a cure. Does this Spark an idea?
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Instructions
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Mix the following ingredients in a bucket:
1/2 gallon distilled water
1 tablespoon baking soda
2 teaspoons summerweight horticultural oil (available in garden centers and online)
1 tablespoon liquid dishwashing detergentThe amounts can be modified for less or more as needed.
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Pour the mixture into a spray bottle that has a fine mist. Spray your Roses every other day. Make sure to spray the entire plant including the undersides of the leaves. If it rains spray them when the Rose Bushes have dried.
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Every time you spray your Rose Bushes, you will need to mix these ingredients. They cannot be stored mixed together because they lose their effectiveness.
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Be sure to spray in the morning because if you spray the Rose Bushes when the sun is hot and blazing you will damage the leaves. Do not spray at night because your mixture will not dry.
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- Photo Credit http://commons.wikimedia.org/
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Comments
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Cut off your lowest branches that are near the ground so air can circulate around your roses. Ortho Elementals has a ready to use fungus spray that's excellent. Spray only in the morning a few times a week. Cut off all signs of fungus and dispose of the leaves and branches. Remove all leaves from the ground so the fungus doesn't spread. If you feed with Miracle Gro rose food every other week, it won't be long and you'll have dark shiny leaves to replace the ones you cut off.
