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Summary The studies on aphid flights using Johnson's aspirator in the Silesian Province in southern Poland began in 2007. Regularly captured insect species according to the list of 9 aphid species recommended for observation by the Institute of Plant Protection – National Research Institute (IPP – NRI) in Poznan, allowed comparing aphid incidence over the 5-year period. The greatest abundance of aphids was reported in the spring and autumn. The most numerous species were Rhopalosiphum padi (L.) and Anoecia corni (F.). Aphid flight data were regularly posted on the webpage of the IPP – NRI in Poznan to indicate potential risks for growers.

Flight dynamics of economically important aphid species collected in 2007–2011 in the Silesian Province using a Johnson's aspirator