@ARTICLE{Szczepanik_Maryla_Effect_2000, author={Szczepanik, Maryla and Grabarczyk, Małgorzata and Olejniczak, Teresa and Paruch, Edyta and Wawrzeńczyk, Czesław and Szczepaniak, Edyta}, number={No 3}, journal={Journal of Plant Protection Research}, pages={193-197}, howpublished={online}, year={2000}, publisher={Committee of Plant Protection PAS}, publisher={Institute of Plant Protection – National Research Institute}, abstract={The effect of some terpenoid lactones (monocyclic ó-hydroxy-v-lactone: bicyclic &-hydroxy-y-spirolactone and bicyclic &-hydroxy-y-lactone) and azadirachtin on feeding and growth of Leptinotarsa decemlineata Say larvae was studied. Among lactones bicyclic 6-hydroxy-y-spirolactone showed a strong feeding deterrency. Larvae treated with this compound consumed O.I63 cm2 (per larva) of potato leaves during 6 days, whereas control larvae ate 0.892 cm2• When lactones were used, a slight increase in body weight was observed. Azadirachtin, in comparison with lactones, much stronger reduced food consumption and growth rate of insects.}, type={Article}, title={Effect of terpenoid lactones and azadirachtin on food consumption and growth rate of Colorado potato beetle larvae, Leptinotarsa decemlineata Say}, URL={http://ochroma.man.poznan.pl/Content/131386/PDF-MASTER/3_PLANT_40_3_4_2000_Szczepanik_EFFECT.pdf}, keywords={terpenoid lactones, antifeedants, Colorado potato beetle, azadirachtin}, }