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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. -
ProjectStrengthening the Resilience of Pine Forests to Bark Beetle Outbreaks and Associated Dieback - TCP/RER/3801 2024
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No results found.Extensive forest coverage in Belarus and Ukraine provides a fundamental contribution to the wellbeing of rural populations and the national economies, with forestry and the wood processing industry accounting for 2.2 percent of the gross domestic product (GDP) of Belarus and 1 percent of the GDP of Ukraine. Both countries have significant potential for expansion of the forestry sector, which is, however, limited by certain factors related to the global environmental processes, resulting in a highly increased proportion of dying forest stands and damage to trees by pests and diseases. Of particular concern in the area is the fact that native pine forests and older plantations are currently suffering from dieback, caused by outbreaks of bark beetles. These insects usually attack dead or dying trees and serve as primary decomposers. However, under stressful conditions, such as drought or high tree density, they can attack and destroy healthy trees in large numbers, overcoming tree defences and severely damaging entire forests. Due to the limited institutional capacities in forest health, the governments of the two countries requested technical assistance from the Food and Agriculture Organization of the United Nations (FAO) in implementing an emergency action plan for combating dieback of pine forests and developing a long-term coordinated solution to reduce and control the periodic incidence of bark beetle infestations. -
Brochure, flyer, fact-sheetHalting bark beetles that cause pine forests dieback in Belarus and Ukraine 2018
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No results found.Pine dieback, caused by bark beetles, is severely damaging Scots pine (Pinus sylvestris) in Belarus and Ukraine. Bark beetles usually attack dead or dying trees and serve as primary decomposers. However, under stressful conditions, such as drought or high tree density, they can attack and destroy healthy trees in large numbers, overcoming tree defenses. To face this situation, FAO is providing technical assistance for combating the dieback of pine forests using Integrated Pest Management (IPM) strategies.
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