Steinernema kraussei - Beneficial Nematodes for Weevil Control

250 mil Quantity - Please call for availability before ordering, it may take several weeks to fulfill an order for S. kraussei.  Description Life Cycle Use in Biological Control Application Rates Instructions for Use Steinernema kraussei is a naturally occurring parasitic nematode that seeks out the larval and pupal stages of black vine weevil (Otiorhynchus sulcatus). Effective at temperatures down to 40F and up to 86F. Provides long-term protection against vine weevil larvae.  A complete life cycle takes 12 to 15 days at room temperature. The nematodes enter the insect pest through body openings. Once inside they reproduce and release a symbiotic bacterium which is toxic to the host. The pests are killed within a few days and a second generation of infective juvenile nematodes exit the host and begin the cycle again.  Entomopathogenic nematodes are supplied as infective juveniles, which are usually applied as a soil drench. Not all nematodes are alike. They specialize in which pe