Well, this may sound like an ad for Dawn, but when I tried to be more organic in my gardening and not use chemical pesticides and fertilizers, the local greenhouse had some good advice. Dawn dish soap. Place a few drops in a spray bottle with water and spray dish soap on plants to kill aphids. Also helps lawns and soil retain water. Other uses include: use on fabric as a presoak to remove grease stains; wipe down patio furniture and wood cabinets with a mixture of warm water and dish soap to remove grime; spray on track of sliding glass doors to lubricate and clean. Who knew this inexpensive product could be so versatile?