Goodbye Mealybugs, Aphids, Slugs, and Pests on Plants: All You Need is This Product

Gardening enthusiasts and plant caretakers often struggle with pesky insects like mealybugs, aphids, slugs, and various other plant pests. These unwelcome guests can wreak havoc on your plants, diminishing their health and beauty. However, there’s a simple, effective, and environmentally friendly solution right at your fingertips: a combination of ash, water, and mild soap.

The Magic Potion: Ash, Water, and Soap

ash water and soap

Ingredients and Preparation

  • The solution consists of ash, water, and mild soap.
  • Specifically, you can use 2-6 teaspoons of ash and 1-2 drops of basic plain dish soap mixed with 1 quart/liter of warm water.
  • The ash used should be plain wood ash, which is a by-product of burnt wood and known for its alkaline properties.

The Role of Each Component:

  • Ash: Ash plays a crucial role due to its high alkalinity, which neutralizes excess soil acidity. It’s especially effective on acidic podzolic clay, forest, and peat-bog based soils.
  • Soap: Adding soap to the mixture enhances the solution’s ability to cling to the plants and pests. Pure liquid soap, such as Castile, or all-natural soap is recommended. The fatty acids in these soaps are the active ingredients that make them effective against pests.


  • This solution should be sprayed directly onto the affected plants. Make sure to cover the entire plant, including both sides of the leaves and stems. The effectiveness of this solution is contingent on it being wet, as it only works when in contact with the pests.
mix of ash and water sprayed on plants

Effectiveness Against Pests:

  • This homemade remedy is particularly effective against soft-bodied insects like aphids, mealybugs, and also works against slugs and snails when ash is spread around the plants.

Additional Variations:

  • For plants sensitive to soap, you can reduce the soap concentration to a 1% solution by halving the amount of soap.
  • Adding cooking oil, such as light olive or canola oil, can make the solution stick longer and is effective against a broader range of insects.
  • Other variations include adding garlic or hot pepper, which act more as repellents rather than insecticides.

Safety and Precautions

  • Always test the solution on a small area of the plant first to ensure it does not cause damage.
  • Rinse the plants with plain water after a few applications to remove any soapy residue.

This simple yet effective solution is a testament to the power of combining everyday household items to create a potent remedy against common garden pests. By using this eco-friendly method, gardeners can protect their plants without resorting to harsh chemicals, preserving both the health of their plants and the environment.

home garden tomatoes carrots onions

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