Garden remedies you can make at home

February 13, 2008 4:50:14 PM PST
Leigh Glaser was in the garden with San Jose Mercury News gardening expert, Holly Hayes, to talk about "home remedies" for garden pests.

For more information on gardening home remedies, or to contact Holly Hayes with questions check out the links below.

San Jose Mercury News: www.mercurynews.com/homeandgarden

In general:

    Aspirin: Dissolve uncoated tablets in warm water; use to treat mildew, black spot and rust.

    Baking soda: Has anti-fungal properties; good for rust and black spot.

    Canola oil: Acts as a wetting agent and disperses in water better than other vegetable oils.

    Cayenne pepper: Sprinkle on areas where you don't want cats to "do their business."

    Hydrogen peroxide: Used in aphid recipe.

    Liquid soap: Fels Naptha, Dr. Bronner's, Ivory, Murphy's Oil Soap. (Not dishwashing detergent.) Soap acts as a wetting agent to help your homemade mixture cling to the plant. It also smothers aphids, whiteflies and earwigs. Also: Safer insecticidal soap.

    Rubbing alcohol: 70 percent solution. Desiccates insects.

    Vinegar: Inhibits rust (see recipe). Also kills many types of small weeds.

The Recipes:

    Aphids
    16 drops liquid soap
    2 oz. rubbing alcohol
    2 oz. hydrogen peroxide
    Mix in a 32-oz. spray bottle; add water. Shake well before using. Use as a foliar spray when aphids are present.

    Aphids
    2 capfuls Murphy's Oil soap
    1 gallon water
    Use as a foliar spray when aphids are present.

    Black spot
    1 teaspoon baking soda
    1 quart warm water
    1 teaspoon insecticidal soap
    Use as a weekly foliar spray.

    Black spot
    3 teaspoons baking soda
    ½ cup fish emulsion
    2 quarts water
    Use as a weekly foliar spray.

    Rust
    1 ½ teaspoon baking soda
    1 tablespoon canola oil
    ½ teaspoon plain liquid soap
    ½ cup white vinegar
    1 gallon water
    Mix with whisk or spoon. Pour in spray bottle. Shake frequently, Apply to both sides of leaves in early morning so foliage has a chance to dry out during the day.

    Mildew
    2 teaspoons baking soda
    ½ teaspoon Murphy's Oil Soap
    2 quarts water
    Use as a foliar spray.

    Mildew
    2 uncoated aspirin tablets
    1 quart warm water.
    Dissolve aspirin in warm water. Use as a foliar spray.

    Mildew
    ½ cup milk
    4 cups water
    2 tablespoons canola oil.
    Use as a foliar spray twice a week. Refrigerate between uses.

    Spicy garden spray for thrips
    2/3 cup finely chopped onion
    10 large cloves of garlic, chopped or put through a garlic press
    1 jalapeno pepper, seeds included, finely chopped
    1 quart of hot water
    Mix ingredients in a bowl and let sit at room temperature for several hours. Strain through a piece of cloth such as muslin so the mixture doesn't clog the sprayer. Add 1 teaspoon canola oil and mix well. Spray in full sun. Start this regimen in early spring and repeat every two weeks. Store leftover spray in refrigerator in a screw-top jar or lidded plastic container.

    Whiteflies
    2 capfuls Murphy's Oil Soap
    1 gallon water
    1 tablespoon canola oil
    Use as a foliar spray when whiteflies are present. Coat both sides of leaves.


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