The occurrence, population dynamics and natural regulation of abundance of Phyllonorycter robiniella (Clem.) in Kraków area.
This work covers the four years (2002-2005) observations on the occurrence and numerousness of Phyllonorycter robiniella (Clem.) and their natural regulation by parasitoid complex in Kraków area. The highest infestation by P. robiniella was found in year 2003 when almost 100% of Leaves and 90% of leaflets was infested. During the vegetation period the density of the observed mines increased and reached the maximum in August in all years of observations. The most important factor decreasing the number of P. robiniella was parasitization. The parasitization ranged between 18% and 27% depends on year of observation. Generally the highest parasitization was noted in the end of growing season, in September after the maximum of pest abundance. The most common parasitoids were Hymenoptera from the family Eulophidae (Chalcidoidea).
Jankowska
Beata
B
Agricultural University, Department of Plant Protection, Al .29 Listopada 54, 31-425 Kraków, Poland. jankowskab@bratek.ogr.ar.krakow.pl
Wojciechowicz-Zytko
Elzbieta
E
D000818:Animals; D005260:Female; D006790:Host-Parasite Interactions; D006927:Hymenoptera / Q000254:growth & development*; D008297:Male; D009036:Moths / Q000254:growth & development / Q000469:parasitology* / Q000502:physiology*; D018515:Plant Leaves / Q000469:parasitology; D011044:Poland; D011156:Population Density; D011157:Population Dynamics; D011158:Population Growth; D031301:Robinia / Q000469:parasitology*; D012621:Seasons