All of these recipes for garden spray call for ingredients you probably already have on your shelves and will cost you only pennies to make:
Mix 2 tablespoons liquid Ivory soap in a gallon of water. mist leaves to kill whiteflies, spider mites, mealy bugs, cinch bugs, and aphids.
Chop 1 garlic bulb and 1 small onion, add 1 tablespoon cayenne powder, and mix with 1 quart water. Let steep 1 hour, then add 1 tablespoon liquid Ivory soap. This all-purpose insect spray remains potent for 1 week.
HOT PEPPER SPRAY
Grind some of your most incendiary hot pepper pods, then mix with an equal amount of water. For each quart, add 1 tablespoon Ivory soap. This all-purpose spray keeps a wide range of insects away.
Use this on wireworms, cutworms, slugs, and whiteflies. Soak 6 tablespoons chopped garlic in 2 tablespoons liquid paraffin for 24 hours. Add 1 oint wter and 1/4 cup liquid Ivory soap. Strain and use within a week.
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Fruit trees covered with spider mites will welcome this spray. Mix together 5 pounds white flour, 1 pint buttermilk, and 25 gallons of water. Filter into a sprayer and apply weekly until mite infestation subsides.
Pyrethrum is sold as a botanical poison to use against leafhoppers, whiteflies, aphids, corn earworms, thrips, and cabbage loopers. It may also deter imported cabbageworms, tomato fruitworms, and beet armyworms. Instead of buying this potent bug killer, spend your money on chrysanthemums for the garden. After you've enjoyed the beauty of the flowers, you can grind them up to make your own bug spray. Buy plants of Chrysanthemum cinerariifolium; this is the only species that contains pyrethrum. Grind several dried flower heads to a fine powder. You can use this dust as is to sprinkle on the garden, or mix it with water to make a spray. Add enough powder to 1 cup of water to make a paste. Keep adding water until it measures 3 quarts. Filter this solution into the sprayer through several layers of cheesecloth. Don't use either the dust or spray within 3 to 7 days of harvest.