Robuta

https://www.spearfishcanyon.com/pinebeetle/links.html

https://www.theweathernetwork.com/en/news/nature/animals/alberta-destructive-mountain-pine-beetle-likely-decimated-by-cold-snap?_guid_iss_=1&b%2525253D75%253D=%3D%3D

https://www.michigan.gov/invasives/id-report/insects/mountain-pine-beetle

https://www.nps.gov/moru/learn/news/mount-rushmore-implements-mountain-pine-beetle-action-plan.htm