title: [The secondary action of neporex on the pupa of parasitoids of stable flies].
abstract: In field tests for the control of house fly larvae in dung heaps of a pig fattening and breeding farm with Neporex SP 50 revealed, that the same species of parasitoids (Muscidifurax raptor, Spalangia nigroaenea, S. cameroni, Phygadeuon fumator) were capable to develop in cyromazine-damaged, larviform host puparia as in undamaged puparia. The parasitization rate is, however, about 3 times and the hatch of flies is twice as high in normal formed puparia compared with larviform puparia. Comparing the attractivity of untreated normal puparia with cyromazine-damaged, larviform puparia under laboratory conditions showed that the mentioned puparia gave rise to 2-3 times as much parasitoids. Rearing M. raptor and M. zaraptor on larviform host puparia in the laboratory led to a distinct decrease in the development of the parasitoid between populations within 3 ... 5 generations. Parasitoids emerged from larviform and from undamaged puparia showed not differences in their life dates in the F1 generation.
authors.affiliation: Institut für Wasser-, Boden- und Lufthygiene des Bundesgesundheitsamtes, Fachgebiet für Siedlungsungeziefer, Laboratorium für gesundheitsschädliche Arthropoden, Berlin, BRD.
authors.forename: R
authors.initials: R
authors.lastname: Klunker
mesh_terms: D000818:Animals; D007306:Insecticides; D007605:Juvenile Hormones; D009117:Muscidae / Q000469:parasitology*; D011679:Pupa / Q000469:parasitology; D014227:Triazines; D014863:Wasps / Q000254:growth & development*
chemical_list: D007306:Insecticides; D007605:Juvenile Hormones; D014227:Triazines; C028704:cyromazine
vernacular_title: Zur Nebenwirkung von Neporex auf Pupariumparasitoide von Stallfliegen.