Biology of the Psyllopsis repens Log. in Ash trees Habitats in Hamadan Province | ||
| طبیعت ایران | ||
| Article 5, Volume 10, Issue 3 - Serial Number 52, September and October 2025, Pages 25-33 PDF (1.3 M) | ||
| Document Type: Scientific Letters | ||
| DOI: 10.22092/irn.2025.370611.1673 | ||
| Authors | ||
| Alireza Rajabi Mazhar* 1; Mohamad Ebrahim Rezaei2; Nasim Shabani3 | ||
| 1Assistant Prof., Hamadan Agricultural and Natural Resources Research Center, Agricultural Research, Education and Extension Organization, Hamadan | ||
| 2Research Expert, Deputy of Protection and Conservation, Forest, Range and Watershed Management Organization, Hamadan, Iran | ||
| 3Research Expert, Zanjan Agricultural and Natural Resources Research Center, Agricultural esearch, Education and Extension Organization, Zanjan, Iran. | ||
| Abstract | ||
| The ash psyllid, Psyllopsis repens Log. (Homoptera: Liviidae), is a significant pest that causes deformation and curling of ash tree (Fraxinus angustifolia Vahl.) leaves by feeding on plant sap. This study investigated the insect's life cycle, lifespan, nymphal stages, overwintering, generations per year, and some of its natural enemies in ash tree habitats in Hamadan province. The studies were conducted in three habitat areas at altitudes of 1550 to 2400 meters above sea level (ASL) under natural conditions during the years 2016-2017. The insect overwinters as eggs around buds and in sutures and crevices on the trunk. This insect has two generations per year, with each generation having five nymphal stages. Young nymphs appeared at the beginning of April and at the same time as buds bloom, after passing the nymphal stages, the adults appeared in the late of May. Adult of the first generation mate and on week after appearance. After an incubation period of 7-10 days for the first (summer) generation eggs, first instar nymphs appeared in mid-June, and adults of the second generation appeared in late August after completing their nymphal stages. The insect's damage pattern in the first generation involved feeding on plant sap and causing curling in newly emerging leaves early in the season. However, in the second generation, nymphs feeding on plant sap and concentrating on the terminal bud caused the seedling's growth to stop. The incubation period for the second (winter) generation eggs was long, lasting more than 200 days. The natural enemies collected for this pest were the predatory bugs Anthocoris nemoralis (Fabricius, 1794) and Orius minutus (Linnaeus, 1758), the parasitoid wasps Psyllophagus claripes Trjapitzin, 1967 and Marieta picta (Andre, 1878). The results of this research will improve the performance of pest management | ||
| Keywords | ||
| Ash tree; Psyllopsis repens; Biology; Hamadan | ||
| References | ||
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Burckhardt, D. and lauterer, P., 1993. The jumping plant-lice of Iran (Homoptera, Psylloidea). Revue Suisse de Zoologie 100, 829–898. Caudullo, G. and Houston Durrant, T., 2016. Fraxinus angustifolia in Europe: distribution, habitat, usage and threats. In: San-Miguel Ayanz, J., de Rigo, D., Caudullo, G., Houston Durrant, T., Mauri, A. (Eds.), European Atlas of Forest Tree Species. Publ. Off. EU, Luxembourg, 97 pp. Hodkinson, I.D., 1974. The biology of Psylloidea (Homoptera): A Review. Bulletin of Entomological Research 64, 325–338.
Hodkinson, I.D., 2009. Life cycle variation and adaptation in jumping plant lice (Insecta: Hemiptera: Psylloidea): A Global Synthesis. Journal of Natural History, 43: 65–179. Kaveh, M., Tavassoli, A., Azadi, R. and Memariani, F., 2014. Morphology and Micromorphology of the Genus Fraxinus L. in Iran. IRAN. J. BOT. 20 (2): 188-200. Malenovský I. and Jerinić-Prodanović, D., 2011. A revised description of Psyllopsis repens Log. (Psyllidae), with first records from Europe. Archives of Biological Sciences (Belgrade), 63 (1): 257–286. Malenovský I., Lauterer, P., Labina, E. and Burckhardt, D., 2012. Jumping plant-lice (Hemiptera: Psylloidea) of Afghanistan. Acta Entomologica Musei Nationalis Pragae, 52(1): 1-22. Ossiannilsson, F., 1992. The Psylloidea (Homoptera) of Fennoscan dia and Denmark. Fauna Entomologica Scandinavica 26. E. J. Brill, Leiden – New York – Köln, 346 pp. Rajabi Mazhar, A., Sadeghi, E., Omid, R. and Khanjani, M., 2004. Evaluation of the biology of Psyllopsis repens Log. and identification of its natural enemies in Hamadan prov ince of Iran. Agriculture and Natural Resources Research Center of Hamedan, 41 pp. http://agris.fao.org/agris-search/search/ display.do?f = 2008/IR/IR0808.xml; IR2007000868). Shamsi Gushki, R., Lashkari, M. and Mirzaei, S., 2018. Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). Zoo Keys 737: 57-73. | ||
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