TY - JOUR N2 - In 1993–1997, 990 pupae of diamondback moth (Plutella xylostella L.) were collected from nine different varieties of Brasica oleracea L., grown on experimental farm near Kraków. Only 234 moths (23.6%) were recovered from the cocoons. The most important factor reducing the population of DBM was parasitization (65.1%). It varied between the years of observation and oscillated from 60% to 90.3%. Sixhundred and fourty four specimens of parasitic wasps belonging to 11 species from families: Ichneumonidae (5 species), Braconidae (3 species), Pteromalidae (2 species) and Eulophidae (1 species) were reared out. In each year of observations the most abundant species among DBM parasitoids was Diadegma fenestralis Holmgr. as it constituted 71.4% of all of the wasps reared. In the years 1994 and 1996 with low abundance of diamondback moth, D. fenestralis was the only species parasitizing 66.7% and 89.5% of the pest larvae. L1 - http://journals.pan.pl/Content/118561/PDF-MASTER/275-284_The%20composition%20and%20role.pdf L2 - http://journals.pan.pl/Content/118561 PY - 2006 IS - No 3 EP - 284 KW - Plutella xylostella L. KW - parasitoids KW - cabbage vegetables A1 - Jankowska, Beata A1 - Wiech, Kazimierz PB - Committee of Plant Protection PAS PB - Institute of Plant Protection – National Research Institute VL - vol. 46 DA - 21.09.2006 T1 - The composition and role of parasitoids in reducing population densities ofdiamondback moth Plutella xylostella L. on different cabbage vegetables SP - 275 UR - http://journals.pan.pl/dlibra/publication/edition/118561 T2 - Journal of Plant Protection Research ER -