Variations in sex ratio during an outbreak ofIps typographus (Col., Scolytidae) in Southern Bavaria Gabriela Lobinger OriginalPaper Pages: 51 - 53
Studies on insects and mites causing galls on the leaves of sycamore mapleAcer pseudoplatanus L. in the Ojców National Park in Poland Małgorzata Skrzypczyńska OriginalPaper Pages: 54 - 55
Betrachtung der Gallmücken (Diptera, Cecidomyiidae) an dominanten Forstgehölzen Eurasiens nach ihrem Schädlichkeitsgrad mit einigen besonderen taxonomischen Problemen V. SkuhravýM. Skuhravá OriginalPaper Pages: 56 - 58
Studies on developmental stages of the horse chestnut scale insect,Pulvinaria regalis Canard (Hom., Coccidae), in the open land and in the laboratory Ç. ŞengoncaT. Faber OriginalPaper Pages: 59 - 63
Greenhouse trials for the control of aphids on cut-roses with the chalcidAphelinus abdominalis Dalm. (Aphelinidae, Hymen.) Sylvia BlümelH. Hausdorf OriginalPaper Pages: 64 - 69