| Water soluble extracts of Ardisia crenata and to a lesser extent from A. japonica and A. escallenoides have been found to control greenhouse whiteflies and the two spotted red spider mite. Addition of a spreader to the extract increases mortality. Dr. John W. Neal, US National Arboretum. E-mail: JWNealJr@home.com In the search for alternatives to methyl bromide in controlling soil born fungi, a water emulsified formulation of clove oil has been found effective against Rhizoctonia and Phythium in pre-planting, post-planting and seed treatment applications. Patent application has been filed to protect the commercial utilization of clove oil as a plant fungicide. Dr. James C. Locke, US National Arboretum. E-mail: LockeJ@ba.ars.usda.gov. |
|