Heterorhabditis bacteriophora Nematodes - Grub and Weevil Control

Description Life Cycle Use in Biological Control Application Rates Instructions for Use Heterorhabditis bacteriophora are organic grub control for gardens, lawns, fields, pastures and orchards. Works best in soil temperatures above 70F and controls beetle grubs, root and black vine weevils, ticks, termites and more.  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 pests they attack and kill and are effective at different temperatures. Beneficial nematodes come in two forms. Sponges that are pre-inoculated with infective juvenile