A 32-ounce bottle of concentrated solution costs between $15 and $30, but it will make five or six times as much spray as a ready-to-use product. The active ingredient in insecticidal soap is the ...

Make sure you have these materials on hand when making insecticidal soap. Spray bottle Distilled water Castile soap Vegetable oil (optional) Dishwashing detergent cannot be substituted for soap ...

Vinegar is a kitchen staple that has long been used as a natural weedkiller - but an expert has warned it is not as effective ...