How many beneficial nematodes are there?
How many beneficial nematodes are there? Beneficial nematodes are microscopic segmented roundworms that occur naturally in soil around the world. There are more than 20,000 nematode species, but the ones used for pest control are entomopathogenic nematodes — aka insect-parasitic nematodes — from the families Steinernematidae and Heterorhabditidae. Are all Read more…