Simonovic, M., Dervišević, M., & Graora, D. 2018 Bionomy of small spruce bud scale, Physokermes hemicryphus (Dalman) (Hemiptera: Coccidae) in Serbia. Pesticides and Phytomedicine 33(2): 89–96
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Notes: A study of Physokermes hemicryphus was carried out at five locations in Serbia in 2016 and 2017