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DocumentForest invasive species in the NENA Region
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The forest sector in the NENA region has similar ecological, social and economic contexts and functions. The NENA region is particularly vulnerable to climate change and, the climate is predicted to become even hotter and drier. Insect pests, pathogens and invasive plants can cause major damages in these ecosystems. The dieback of forest trees was caused by pests (insects and pathogens) and affects conifers, oak and Eucalypt species. Cedrus libani and Abies cilicica in Lebanon were affected by Cephalcia tannourinensis. Cedrus atlantica forests in Algeria and Morocco was affected by Thaumetopoea pityocampa and T. bonjeani. The fungus Cylindrocladium buxicola caused Boxwood Blight Buxus hyrcana in Iran. Juniperus procera in Saudi Arabia was mainly affected by fungal species, about 21 species belonging to 12 genera associated with roots and twigs were identified. The conifer seed bug, Leptoglossus occidentalis was detected on Pinus pinea, P. pinaster, P. brutia and P. halepensis in Lebanon, Morocco and Tunisia. Eucalyptus spp. of North Africa, Lebanon, Syria and Iran countries are threatened by Phoracantha semipunctata, P. recurva, Leptocybe invasa, Ophelimus maskelli and Glycaspis brimblecombei. In Sudan, dieback on Acacia nilotica was caused by silting and Roots rot belonging to Phytophtora, Pythium and Rhizoctonia genus. Deudorix livia was detected in Tunisia on Acacia farnesiana. Recently, the awful cochineal Dactylopius opuntiae was detected on Opuntia ficus-indica in Lebanon, Morocco, Jordan and Palestine. Besides these pests, the NENA region suffer from invasive plant species (trees, shrubs, herbaceous). Seventeen species were detected in Algeria, Yemen, Syria, Sudan, Saudi Arabia and Lebanon. To protect the forest against invasive species and to elaborate a specific standard approach for monitoring and management, the network in the NENA region should be standardized and the regional cooperation should be improved. Keywords: Climate change, Adaptive and integrated management, Biodiversity conservation, Agriculture, Landscape management ID: 3623155 -
DocumentAnalysis of tree taxa found in site of forest restoration projects in Korea
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The monitoring data conducted on 72 forest restoration sites in Korea that have implemented the projects from 2008 to 2020 has been analyzed to identify the trees that are mainly found in those sites. First, taxa with overlapping appearances by site were excluded and a list including growth types was developed. The frequency of appearances by taxon was identified by classifying 27 sites according to the forest landscape and ecosystem management area in order to prevent regional bias of the sites and the main tree species were identified through laws and references. The research has identified 225 taxa trees throughout the entire research sites. In terms of growth type, in the following order, deciduous 187 taxa (83.1%), evergreen 34 taxa (15.1%) and semi-evergreen 4 taxa (1.8%). Arboreal was 121 taxa (53.8%), shrub 77 taxa (34.2%) and vine 27 taxa (12.7%) in the said order. The frequency of appearance in the 27 sites is in descending order: Lespedeza bicolor Turcz., Rubus crataegifolius Bunge, Pinus densiflora Siebold & Zucc. etc. The main tree species were 59 taxa (26.2%) of native plants for forest restoration designated by the Korea Forest Service, 49 taxa (21.8%) of trees recommended for reforestation, and 12 taxa (5.3%) of temperate evergreen broadleaf trees. The study result would contribute to identifying the problems of the tree taxa appearing in the restoration sites and to select trees for the future restoration projects. Keywords: Monitoring and data collection ID: 3622885 -
Brochure, flyer, fact-sheetInvasive beetle threatens forest and fruit trees 2019
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No results found.The polyphagous shot hole borer (PSHB) is an ambrosia beetle (Coleoptera: Curculeonidae: Scolytinae) native to Asia, together with its fungal symbiont Fusarium euwallaceae. PHSB attacks agricultural and forestry crops, street and garden trees, as well as several native tree species. It has emerged as an important invasive pest killing avocado and other trees in Israel, California and the United States. The PSHB is one of three species in the Euwallacea fornicatus species complex, the taxonomy of which remains to be resolved. The PSHB and its fungus were discovered in South Africa in 2017. The beetle has since then spread to a number of provinces in the country where it has infested and killed large numbers of trees. This small ambrosia beetle has an extraordinary wide host range. It has already been reported on many popular tree species grown in urban areas of South Africa, and is also a pest of pecan nut trees, avocado and other fruit trees. To help member countries address and manage the increased threats to forest health from invasive species such as PSHB, FAO facilitates the Forest Invasive Species Networks for Africa, Asia-Pacific, Europe and Central Asia and the Near East. These networks improves the exchange of information, knowledge and expertise on invasive species issues and enhance collaboration in the regions.
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