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Spruce bud scale, Physokermes piceae, develops on the genus Picea. Large  colonies of this species are constantly present on Picea abies in green areas  in the Belgrade territory, causing the drying of needles, branches and whole  plants. Therefore, Ph. piceae is a significant spruce pest. Spruce scales  attract many entomophagous insects able to reduce pest population. Parasitoid  wasps Coccophagus lycimnia (Walk) (Aphelinidae) and Microterys lunatus  (Dalm.) (Encyrtidae) were reared. Predators Exochomus quadripustulatus L.,  Scymnus abietis Paykull (Coccinellidae) and Anthribus nebulosus Forster  (Anthribidae) were determined. Both species of ladybird were confirmed as  predators of Ph. piceae for the first time in Serbia, while S. abietis is a  new species for the fauna of Serbia. The most effective natural enemy of Ph.  piceae was A. nebulosus, reducing populations by 68-80%

Bionomy of spruce bud scale, Physokermes piceae (schrank) (Hemiptera: Coccidae) in the Belgrade area, Serbia