Bionomija in načini zatiranja japonskega hrošča (Popillia japonica Newman, Coleoptera: Scarabaeidae) | Bionomics and control methods of the Japanese beetle (Popillia japonica Newman, Coleoptera: Scarabaeidae)

Slovenian. Japonski hrošč (Popillia japonica Newman, 1841), ki je bil leta 2024 prvič ugotovljen v Sloveniji, je pomemben invazivni škodljivec, ki lahko povzroča obsežno škodo v kmetijstvu. Zaradi sposobnosti hitrega širjenja in prehranjevanja z več kot 300 vrstami rastlin predstavlja resno grožnjo na območjih, kjer se pojavlja in širi, vključno z Evropo in ZDA. Odrasli osebki so škodljivi zaradi skeletiranja listov, medtem ko ogrci, ki so talni škodljivci, objedajo korenine trav in poljščine. V preglednem članku predstavljamo možnosti zatiranja japonskega hrošča. Kemične metode so učinkovite, a na insekticide škodljivec lahko razvije odpornost, škodljivi pa so tudi neciljnim organizmom. Biotično zatiranje škodljivca s parazitoidi, entomopatogenimi bakterijami, glivami in ogorčicami, kaže potencial, vendar njihova učinkovitost ni vedno zadovoljiva. Za učinkovito zatiranje japonskega hrošča so potrebne integrirane strategije, ki temeljijo na okoljskih prilagoditvah in nadaljnjih raziskavah.

English. The Japanese beetle (Popillia japonica Newman, 1841), which was first recorded in Slovenia in 2024, is an important invasive pest that can cause extensive damage in agriculture. Due to its ability to spread rapidly and feed on more than 300 plant species, it poses a serious threat in areas where it occurs and spreads, including Europe and the United States. Adults are harmful by skeletonizing the leaves, while white grubs, which are soil pests, eat the roots of grasses and field crops. This review paper presents the methods for controlling the Japanese beetle. Chemical methods are effective, but the pest can develop resistance to insecticides, and they are also harmful to non-target organisms. Biological control of this scarab beetle with parasitoids, entomopathogenic bacteria, fungi and nematodes has potential, but their effectiveness is not always satisfactory. Integrated strategies based on environmental adaptations and further research are needed for effective control of the Japanese beetle.