To make your own, soak 3 ounces of minced garlic in 2 teaspoons of mineral oil for 24 hours. Then mix it with 1 pint of water and a few drops of liquid dish soap. This mixture can be stored as your concentrate. When you are ready to use it, add 1-2 tablespoons of your concentrate to a pint of water to make your spray. Dish soap and oil can both cause damage to leaves and petals that may not show up until 2-3 days after you spray. For this reasons, test your mixture on a small, inconspicuous area before you cover your roses thoroughly.
To make garlic tea, liquefy 3-4 bulbs of garlic in a blender 1/2 to 2/3 full of water. Strain the solids and add enough water to the garlic juice to make 1 gallon of concentrate. Use 1/4 cup of concentrate per gallon of spray. Add 2 T of blackstrap molasses as a sticker.
Use every 7 to 14 days
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