Perennials that year after year incorporate atmospheric carbon dioxide into biomass, improve our environment, and give us useful food, feed and fuel are wonderful plants. Residents of West Africa have long recognized the African oil palm (Elaeis guineensis) as such a plant. There may be places where this is an underutilized resource, and other places where it could be grown but is not known.
After the publication of our article on clay water filters (EDN 71-4), we were questioned about the safety of colloidal silver.
One More on SRI -- Dave Askin in Papua New Guinea wrote to Norman Uphoff with a question on SRI and stem borer.
Loss of Mango Crop -- Wes Tenney in the Philippines wrote to us with a question about mangos.
Mole Repellent Effective -- Terry Mason, Lesotho, Africa: “In a recent EDN you gave an easy recipe for mole repellent.