|Ferris, Howard - UNIV CALIF, DAVIS|
Submitted to: Journal of Nematology
Publication Type: Abstract Only
Publication Acceptance Date: June 1, 2003
Publication Date: September 20, 2003
Citation: Zasada, I.A., Ferris, H. 2003. The complexity of implementing amendment-based management systems for plant-parasitic nematode suppression [abstract]. Journal of Nematology. 35:373. Technical Abstract: Organic amendments with potential for nematode management range from nematotoxic plants to manures to industrial by-products. They have been applied to soil as mulches, green manures and extracts. Before an organic amendment can be considered a reliable and consistent nematode management tool, it requires the same rigor of testing and evaluation that has been applied in pesticide development. An essential starting point is the need to understand the mechanisms of nematode suppression associated with the material. Factors that are usually unknown include the chemical composition of the active components; lethal concentration values of the active components and/or the amendment material for specific target nematodes; impact of the material on soil physical and chemical properties; and the influence and impact on soil biotic factors. Experiences with the Brassicaceae, other plant-derived amendments and composted municipal waste demonstrate that organic amendments can be applied for consistent and reliable nematode management when the chemical and biological components of suppressiveness are understood.