nematodes, infecting plants, insects, animals, or humans. There are about 25,000 named species, but estimated numbers of species are in the millions. Nematodes
soft-bodied insects that belong to the superfamily Aphidoidea. There are over 4,000 species of aphids that have been described, and they can be found in a variety
joint-venture in India for the production of warm-climate crops. In Norfolk 4,000m 2 of heated and unheated glass and polytunnels are used to grow a wide range
