@ARTICLE{Kostiv_Michał_Pressure_2000,
 author={Kostiv, Michał and Robak, Barbara},
 number={No 1},
 journal={Journal of Plant Protection Research},
 pages={57-59},
 howpublished={online},
 year={2000},
 publisher={Committee of Plant Protection PAS},
 publisher={Institute of Plant Protection – National Research Institute},
 abstract={Monitoring of aphids - vector of potato diseases virus - continued in Poland for 30 years in 5 localities, indicated some changes in pressure exerted by these insectes. The biggest differences were observed for Macrosiphum euphorbiae (Thom.) and subsequently for Aphis frangulae Kalt. and Aulacorthum so/ani Kalt. Reduction in population of these aphids has been observed according to elapsing time in all five localities. In case of Myzus persicae (Sulz.) or Aphis nasturtii Kalt., these changes involved decrease or increase of the pressure, depending on the locality.},
 type={Article},
 title={Pressure variability of aphids - vectors of potato viruses in Poland},
 URL={http://ochroma.man.poznan.pl/Content/131220/PDF-MASTER/11_PLANT_40_1_2000_Kostiw_Pressure.pdf},
 keywords={aphids, potato},
}