Masovna pojava Cinara (Cupressobium) tujafilina (Del Guercio) (Hemiptera: Aphididae) na kultivarima tuje u Beogradu

Abstract

Promene klimatskih uslova, posebno blage zime, mogu da budu okidač za masovne pojave biljnih vaši, koje od decembra neopaženo žive na drveću u našem okruženju. Biljne vaši čine značajan deo trofičkog kompleksa u prirodnim ekosistemima i neke imaju veliki ekonomski značaj kao štetočine raznih vrsta gajenih biljaka. Masovna pojava Cinara tujafilina je proučavana na zelenim prostorima u Beogradu i okolini, od marta do avgusta 2013. godine. Do sada su u Srbiji zabeležene masovne pojave ove biljne vaši na kultivarima Picea, Chamaecyparis i Thuja. Najveće kolonije su zabeležene u prve dve dekade aprila. Najčešći prirodni neprijatelji na istraživanom području su bili: Episyrphus balteatus, Scaeva selenitica, Exochomus quadripustulatus, Coccinella septempunctata i Harmonia axyridis.

Aphids are an important part of the trophic complexes in natural ecosystems and some have great economic importance as pests of various kinds of cultivated plants. Climate changes, particularly mild winter, can be a trigger for mass occurrence of aphids, which since December unnoticed live on coniferous and decidous trees in our environment. Mass occurrence of Cinara tujafilina was studied at urban green spaces in Belgrade and its surrounding in spring 2013. So far in Serbia was recorded mass appearance of Cinara tujafilina on cultivars of Picea, Chamaecyparis and Thuja. The largest colonies were observed in the first two decades of April 2013. The most common natural enemies in the study area were: Episyrphus balteatus, Scaeva selenitic, Exochomus quadripustulatus, Coccinella septempunctata and H. axyridis.