Aspirin is the remedy for fungal plant problems, Black spot, powdery mildew, and rust are a terrible trio of fungi, which can attack and destroy your plants. Scientists have found that two uncoated aspirin tablets (325 milligrams each) dissolved in 1 quart of water and used as a foliar spray can thwart these diseases. I have not tried this, but I will.
Martha Stewart Living, March 2002 Homemade, nonchemical spray to keep slugs and aphids away. One peeled onion, two peeled garlic cloves, and one teaspoon cayenne pepper in the jar of a blender. Add three cups of water, and blend until smooth. Let the mixture sit overnight, strain the liquid into a spray bottle, and coat plants generously.
natural-garden-pest-control Place 4 c. of filtered water, 1/2 onion, 2 garlic cloves, & 1/4 tsp. of cayenne pepper (or any hot pepper) in a pot. Bring to a boil. Grate 1/4 bar of natural soap. Once boiling, add soap. Stir while cooking an additional 2 min. or so, and then once the bubbles start to rise, remove it from heat. Cover & let sit for 20 minutes. Once it cools, add to a heavy duty spray bottle, and spray on your plants! Store it in the fridge.Spray this on plants about once a week