"The provinces most affected by plant pests are Cibitoke Bubanza and Rumunge of the Imbo high temperature region. The average agricultural production varies between 50% and 60%.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/burundi-pests-damage-agricultural-production-imbo-region
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/all-africa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crop-pests
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/burundi