An Improved Final Separation Sieve for the Extraction of Plant-Parasitic Nematodes From Soil Debris

Abstract

Instructions are given for making a simple final separation sieve, free of metallic components and adhesives. The use of such sieves prevents the mortality, especially of dorylaimoid nematodes, caused by the metal sieves commonly used at this stage of extraction processes. Cotton-wool or similar filters can considerably reduce yields of large nematodes, but their use may be avoided by choosing an appropriate sieve aperture size.