Summary: Pea gravel; decomposed granite. Mosquito control (liquid BTI). Building healthy soil. Nematodes & trichogramma wasps. Guest: Sheri Herrera de Frey (ARBICO Organics). Hail damage to trees. Early blight. Hydrogen peroxide. The Dirt Doctor Home Page Organic Gardening Topics The Dirt Doctor Video Page Organic Garden Club of America The Dirt Doctor Facebook Page
