Abstract
Introduction
Emerald ash borer Agrilus planipennis Fairmaire, 1888 (Coleoptera: Buprestidae) (EAB) inhabits native ash species in Southeast Asia and the Far East. In the 90s of the 20th century, it penetrated into North America and European Russia and caused the mortality of a large number of trees of the genus Fraxinus L. In 2019, EAB was found in the territory of Ukraine, namely in Luhansk region. The analysis of model trees showed that the colonization took place as early as in 2017. In 2021, the pest was found in Kharkiv region. The development cycle of EAB in different regions is one or two years. Sometimes the population is stratified, and some of the larvae hibernate in younger instars, while other larvae in older ones. EAB can damage different ash species, particularly F. excelsior and F. pennsylvanica.
The danger of EAB spread in the forests increases due to the ash dieback. It has been shown that Fraxinus excelsior is more resistant to EAB colonisation than F. pennsylvanica but is more susceptible to the ash dieback. Trees weakened by the disease become susceptible to colonisation by stem pests, in particular by EAB. Timely detection of EAB foci should be based on knowledge of the features of the biology of the pest in places of penetration, in particular, the timing of adult emergence and tree colonization.
The aim of the research was to reveal the features of EAB adult emergence considering ash species and forest site conditions.
Materials and Methods
The study was carried out in the stands of the Mistkivsky forestry of the Svatove State Forest and Hunting Enterprise in Luhansk Region, where the dynamics of the emergence of emerald ash borer (Agrilus planipennis) from model trees of both common ash (Fraxinus excelsior) and green ash (F. pennsylvanica) was analysed. In particular, common ash trees were selected in dry and fresh fertile forest site conditions. After the registered start of the EAB emergence (June 14, 2021), model trees of both ash species were felled at the sample plots (five trees from each sample plot). After that their logs were brought into the technical room at the territory of the forest enterprise. The logs were examined on a daily basis, at that the D-shaped exit holes were counted and marked with a felt-tip pen.
Results and Conclusions
The first exit holes were found on June 14, and the last ones on July 4 on the trees of both ash species. The dynamics of the emergence of emerald ash borer from the trees of two ash species significantly correlated and had three waves. The correlation coefficients between the proportion of beetles that emerged on different dates from the model trees of common ash and green ash and relative air humidity were not significant. A greater number of beetles emerged from the green ash model trees than from the common ash model trees. In the second half of the observation period, from common ash trees growing in fresh fertile forest site conditions, significantly more beetles emerged from trees in dry fertile forest site conditions (48.7 and 59.0% of the total number of beetles that flew out of these trees).
5 Figs., 1 Tab., 24 Refs.
References
Anulewicz, A. C., McCullough, D. G., Miller D. L. 2006. Oviposition and development of Emerald Ash Borer (Agrilus planipennis) (Coleoptera: Buprestidae) on hosts and potential hosts in no-choice bioassays. The Great Lakes Entomologist, 39 (3–4): 99–112. Available at: https://scholar.valpo.edu/tgle/vol39/iss2/1 (accessed 02.03.2022).
Atramentova, L. A. and Utevskaya, O. M. 2008. Statistical methods in biology. Gorlovka, Likhtar, 248 p. (in Russian).
Baranchikov, Y., Mozolevskaya, E., Yurchenko, G., Kenis, M. 2008. Occurrence of the emerald ash borer, Agrilus planipennis in Russia and its potential impact on European forestry. EPPO Bull., 38: 233–238. https://doi.org/10.1111/j.1365-2338.2008.01210.x
Baranchikov, Y. N., Seraya, L. G., Grinash, M. N. 2014. All European ash species are susceptible to emerald ash borer Agrilus planipennis Fairmaire (Coleoptera: Buprestidae). A Far Eastern invader. Sib. For. J., 6: 80–85 (in Russian with English summary).
Cappaert, D., McCullough D. G., Poland T. M., Siegert N. W. 2005. Emerald ash borer in North America: A research and regulatory challenge. Am. Entomol., 51: 152–165.
Davydenko, K. V., Borysova, V., Shcherbak, O., Kryshtop, Y., Meshkova, V. 2019. Situation and perspectives of European ash (Fraxinus spp.) in Ukraine: Focus on eastern border. Baltic Forestry, 25: 193–202.
Davydenko, K., Skrylnik, Y., Borysenko, O., Menkis, A., Vysotska, N., Meshkova, V., Olson, A., Elfstrand, M., Vasaitis, R. 2022. Invasion of Emerald ash borer Agrilus planipennis and ash dieback pathogen Hymenoscyphus fraxineus in Ukraine — A concerted action. Forests, 13, 789. https://doi.org/10.3390/f13050789
Drogvalenko, A. N., Orlova-Bienkowskaja, M. J., Bienkowski, A. O., 2019. Record of the Emerald Ash Borer (Agrilus planipennis) in Ukraine is confirmed. Insects, 10(10): 338. https://doi.org/10.3390/insects10100338
Enderle, R., Stenlid, J., Vasaitis, R. 2019. An overview of ash (Fraxinus spp.) and ash dieback disease in Europe. CAB Rev. 14, 025. https://doi.org/10.1079/PAVSNNR2019140
Kucheryavenko, T. V., Skrylnik, Y. E., Davydenko, K. V., Zinchenko, O. V., Meshkova, V. L. 2020. The first data on the biological characteristics of Agrilus planipennis Fairmare, 1988 (Coleoptera: Buprestidae) in Ukraine. Ukrainian Entomol. J., 18: 58–66 (in Ukrainian). https://doi.org/10.15421/282008
Liu, H., Bauer, L. S., Gao, R., Zhao, T., Petrice, T. R., Haack, R. A. 2018. Exploratory survey for the emerald ash borer, Agrilus planipennis (Coleoptera: Buprestidae), and its natural enemies in China. The Great Lakes Entomologist, 36 (3–4): 11.
Liu, H., Bauer, L. S., Miller, D. L., Zhao, T., Gao, R., Song, L., ..., Gao, C. 2007. Seasonal abundance of Agrilus planipennis (Coleoptera: Buprestidae) and its natural enemies Oobius agrili (Hymenoptera: Encyrtidae) and Tetrastichus planipennisi (Hymenoptera: Eulophidae) in China. Biological Control, 42(1): 61–71. https://doi.org/10.1016/j.biocontrol.2007.03.011
McCullough, D. G. and Siegert, N. W. 2014. Estimating potential emerald ash borer (Coleoptera: Buprestidae) populations using ash inventory data. Journal of Economic Entomology, 100(5): 1577–1586. https://doi.org/10.1093/jee/100.5.1577
Meshkova, V., Samoday, V., Davydenko, K. 2021a. Ash dieback and contributing factors of forest weakening in provenance tests in the Sumy region. Cent. Eur. For. J. 67: 113–121. https://doi.org/10.2478/forj-2021-0001
Meshkova, V. L., Skrylnyk, Yu. Ye., Terekhovа, V. V., Kucheryavenko, T. V. 2021b. Emerald ash borer (Agrilus planipennis) in Kharkiv region. In: International scientific & practical conference Modern Problems of Forestry and Ecology and Ways of Their Solution (Faculty of Forestry and Ecology – 20 years), October 7–8, 2021. Zhytomyr, Polisky National University, p. 125–126.
Migunova, Ye. S. 1993. Forests and forest lands (Quantitative evaluation of interactions). Moscow, Ecology, 364 p. (in Russian).
Musolin, D. L., Selikhovkin, A. V., Shabunin, D. A., Zviagintsev, V. B., Baranchikov, Y. N. 2017. Between ash dieback and Emerald Ash Borer: two Asian invaders in Russia and the future of ash in Europe. Baltic Forestry, 23: 316–333.
Orlova-Bienkowskaja, M. J. and Bie?kowski, A. O., 2016. The life cycle of the emerald ash borer Agrilus planipennis in European Russia and comparisons with its life cycles in Asia and North America. Agricultural and Forest Entomology, 18(2): 182–188. https://doi.org/10.1111/afe.12140
Orlova-Bienkowskaja, M. J., Drogvalenko, A. N., Zabaluev, I. A., Sazhnev, A. S., Peregudova, E. Y., Mazurov, S. G., Komarov, E. V., Struchaev, V. V., Martynov, V. V., Nikulina, T. V. 2020. Current range of Agrilus planipennis Fairmaire, an alien pest of ash trees, in European Russia and Ukraine. Ann. For. Sci., 77: 29. https://doi.org/10.1007/s13595-020-0930-z
Schrader, G., Baker, R., Baranchikov, Y., Dumouchel, L., Knight, K. S., McCullough, D. G., ..., Gilioli, G. 2021. How does the Emerald Ash Borer (Agrilus planipennis) affect ecosystem services and biodiversity components in invaded areas? EPPO Bulletin, 51(1): 216–228. https://doi.org/10.1111/epp.12734
Selikhovkin, A. V., Musolin, D. L., Popovichev, B. G., Merkuryev, S. A., Volkovitsh, M. G., Vasaitis, R. 2022. Invasive populations of the Emerald Ash Borer Agrilus planipennis Fairmaire, 1888 (Coleoptera: Buprestidae) in Saint Petersburg, Russia: A Hitchhiker? Insects, 13(2): 191. https://doi.org/10.3390/insects13020191
Selikhovkin, A. V., Popovichev, B. G., Mandelshtam, M. Y., Vasaitis, R., Musolin, D. L. 2017. The frontline of invasion: the current northern limit of the invasive range of Emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), in European Russia. Baltic forestry, 23(1): 309–315.
Skrylnyk, Yu. and Kucheryavenko, T., 2020. Ash stands under threat (new attack on Ukrainian forests – emerald ash borer). Forest and Hunting Journal, 2: 20–22 (in Ukrainian).
Wang, X. Y., Yang, Z. Q., Gould, J. R., Zhang, Y. N., Liu, G. J., Liu, E. 2010. The biology and ecology of the emerald ash borer, Agrilus planipennis, in China. Journal of Insect Science, 10: 128. https://doi.org/10.1673/031.010.12801
This work is licensed under a Creative Commons Attribution 4.0 International License.