The Re-isolation of Neoaplectana bibionis Bovien (Nematodea) from Danish Bibionids (Diptera) and Their Possible Use as Biological Control Agents By GEORGE O. POINAR, Jr. and K. LINDHARDT Department of Entomology and Parasitology, University of California, Berkeley Statens Plantepatologiske Forsøg, Lyngby, Denmark Abstract In. the spring of I97I, Neoaplectana bibionis Bovien was re-isolated from larvae and pupae of Bibio hortulanus L. and other bibionids from 3 localities in Denmark. Third stage infective larvae were recovered and used to initiate laboratory cul- tures. When nematodes were injected into the mouth of the greater wax moth larvae, Galleria mellonella L., they quickly penetrated into the hemocoel of the living insects and brought about their death. Successive nematode generations also occurred on artificial media used for rearing Neo- aplectana carpocapsae Weiser. A specific rod-shaped bacterium was isolated from the intestine of infective stage larvae and probably has the same relationship to the nema- tode as N. carpocapsae has to its symbiotic bac- terium, Achromobacter nematophilus. This nematode may make an excellent candi- date for biological control programs involving soil insects. Introduction From 1931 to 1935, Bovien collected and studied some neoaplectanid nematodes that he discovered in bibionid fly larvae in Denmark. He
Insect Systematics & Evolution – Brill
Published: Jan 1, 1971
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