@ARTICLE{Wójcicka_Agnieszka_Surface_2015, author={Wójcicka, Agnieszka}, volume={vol. 57}, number={No 1}, journal={Acta Biologica Cracoviensia s. Botanica}, howpublished={online}, year={2015}, publisher={Biological Commission of the Polish Academy of Sciences – Cracow Branch}, abstract={Abstract The electrical penetration graph (EPG) method was used to quantify the effect of surface waxes on probing behaviour of the grain aphid Sitobion avenae F. (Hemiptera: Aphididae). The experiments showed that wax removal significantly affected probing behaviour of S. avenae. Generally, the aphids feeding on the plants without wax had a shortened non-probing (EPG-pattern np) and prolonged penetration of peripheral tissues – epidermis and mesophyll (EPG-pattern C). The EPG tests also showed that the three tested extracts of surface waxes from waxy plants RAH 122 were active as aphicides against the grain aphid.}, title={Surface Waxes as a Plant Defense Barrier Towards Grain Aphid}, URL={http://journals.pan.pl/Content/81852/PDF/09_wojcicka.pdf}, doi={10.1515/abcsb-2015-0012}, }