Portugal is struggling to contain a new outbreak of nematodes, microscopic worm-like organisms that are killing wild pine trees and threaten to spread abroad despite drastic measures to stop their advance. The government cut a 430 km (265 mile) corridor through Portugal's southern forests last year to contain the Pine Wilt Nematode within a 1 million hectare (2.47 million acres) area, about one ninth of Portugal's forested land.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/portugal-tackles-new-outbreak-tree-killing-pest
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/planet-ark-australia
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/trees
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/timber-industry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/portugal