@misc{Leśniak_Andrzej_Certain_1976, author={Leśniak, Andrzej}, editor={Polska Akademia Nauk. Instytut Ekologii}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, howpublished={online}, year={1976}, language={eng}, abstract={Paper presents results of studies on the impact of group effect and food kinds upon the morphofunctional status of Dendrolimus pini L. caterpillars. Significant impact of group effect was found, especially in older instars of caterpillars (L3 and L4), and a favourable influence of using a more appropriate food of two years old needles during spring feeding and one year needles during autumnal feeding upon caterpillars. No significant differences were found in the morphofunctional status of caterpillars fed with the foliage of Scots pines coming from stands in the II and VI age-classes and with I and III site indices.}, type={Text}, title={Certain trophic and intrapopulation conditions of the pine moth (Dendrolimus pini L.) outbreaks}, URL={http://rcin.org.pl/Content/74214/PDF/WA058_86853_P2840-T24_Eko-Pol-A-Nr-4.pdf}, volume={24}, number={4}, journal={Ekologia Polska}, publisher={Polish Scientific Publishers}, keywords={pine-tree lappet, larvae, ecology, nutrition, Dendrolimus pini}, }