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Scientific review of the impact of climate change on plant pests

A global challenge to prevent and mitigate plant-pest risks in agriculture, forestry and ecosystems











Read the summary “Summary for policymakers of the scientific review of the impact of climate change on plant pests" 

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Last updated date 12/01/2022


IPPC Secretariat. 2021. Scientific review of the impact of climate change on plant pests  A global challenge to prevent and mitigate plant pest risks in agriculture, forestry and ecosystems. Rome. FAO on behalf of the IPPC Secretariat.




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    Climate change represents an unprecedented challenge to the world’s biosphere and to the global community. It also represents a unique challenge for plant health. Human activities and increased market globalization, coupled with rising temperatures, has led to a situation that is favourable to pest movement and establishment. This summary for policy makers drawn from the FAO scientific review on the impact of climate change on plant pests, and by extension, on plant health provides concrete recommendations for decision makers on how to address the impact of climate change on plant health. The evidence assessed strongly indicates that climate change has already expanded some pests’ host range and geographical distribution, and may further increase the risk of pest introduction to new areas. Increased international cooperation and development of harmonized plant protection strategies are crucial to help countries successfully adapt their pest risk management measures to climate change.
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    The International Plant Protection Convention (IPPC) aims to secure coordinated, effective action to prevent and to control the introduction and spread of pests of plants and plant products. This is achieved through the development and implementation of phytosanitary policies and activities. At a country scale, such activities are the responsibility of the national plant protection organization (NPPO), which is the official service established by a government to discharge the functions specified by the IPPC. While an NPPO has responsibility for phytosanitary actions, it cannot operate in isolation and relies on engagement with other government bodies, the private sector and civil society to protect plant health.
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    Climate change has an impact on plant health. Alterations in weather conditions may lead to biological changes in pests and diseases, and also impact plant physiology and structure, which may increase vulnerability of plants towards pests and diseases. On the other hand, pests and diseases can contribute to climate change by causing tree mortality, which may consequently reduce net carbon sinks. This factsheet explores how climate change is putting plant health at risk, and what the International Plant Protection Convention (IPPC) is doing to mitigate the impact of climate change on plant health

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