Red pepper spray
Red pepper powder spices up your meals and also keeps unwanted pests off your houseplants. Make a spray by mixing 2 tablespoons of red pepper powder, 6 drops of gentle dish soap and 1 gallon of water.
Heavily scented herbs — such as basil, lavender, mint, rosemary and sage — can help get rid of aphids, mites and other bugs attacking your houseplants.
Pour the herbal liquid into a clean spray bottle, add about 1/8 teaspoon of gentle dish soap, shake the bottle to mix and thoroughly coat the houseplants with the herbal bug spray.
Baby shampoo spray
Baby shampoo generally contains little to no unneeded fragrances or additives, and mixing 2 tablespoons of the gentle shampoo with 1 gallon of water will help control bugs on indoor plants.
Cooking oil spray
The cooking oil sitting in your kitchen pantry will control spider mites, aphids, whiteflies, thrips, mealybugs and scale insects attacking your indoor plants. Mix 1 cup of cooking oil with 1 tablespoon of gentle dish soap produces a concentrated solution that you can store in a cool, dark area until you need it.