Laboratory and field evaluation of the dd 136 strain of neoaplectana carpocapsae for control of the european corn borer ostrinia nubilalis
Laboratory and field evaluation of the dd 136 strain of neoaplectana carpocapsae for control of the european corn borer ostrinia nubilalis
Lewis, L.C.; Raun, E.S.
Iowa State Journal of Research 52(4): 391-396
1978
In the laboratory the DD-136 strain of the nematode, N. carpocapsae Weiser, killed 100, 30 and 100% of the larvae, pupae and adults, respectively, of O. nubilalis (Huebner). Application of 2.3, 4.6, or 9.2 .times. 103 nematodes/m2 of existing cornstalk debris in an oat-seeded field did not give appreciable control of overwintered corn-borer larvae in the debris, although infective-stage nematodes were recovered from soil samples slightly more than 2 mo. after application. Under the conditions of this field test, the nematodes were apparently unable to locate or reach the larvae protected in the stalk debris.