The elm zigzag sawfly, an exotic insect found in Asia and Europe that feeds on elm trees, has never been found in North America… that is until now. On this episode, we talk about how a photo by a nature photographer lead to the discovery of the insect on this side of the pond.Recommended Links:•Citizen scientist spots a newcomer on Canadian elm trees (Simply Science article) - https://www.nrcan.gc.ca/simply-science/citizen-scientist-spots-newcomer-canadian-elm-trees/23000?_ga=2.130340235.50910390.1603122913-952557420.1574967179•Citizen Science Portal (Industry Canada) - https://www.ic.gc.ca/eic/site/063.nsf/eng/h_97169.html•Slowing Down the Spruce Budworm (Simply Science podcast) -https://www.nrcan.gc.ca/simply-science/20299/slowing-down-spruce-budworm-ask-nrcan/22113?_ga=2.88865567.50910390.1603122913-952557420.1574967179•International Year of Plant Health 2020 - https://www.pc.gc.ca/en/nature/science/conservation/plante-plant•Véronique Martel on Twitter - https://twitter.com/MartelVronique3Simply Science Website: www.nrcan.gc.ca/simply-science Simply Science YouTube Channel: https://gate.sc/?url=https%3A%2F%2Fwww.youtube.com%2Fchannel%2FUCNbgD_ZfyM6lh1KbemOKfeg%3Fview_as%3Dsubscriber%253Fsub_confirmation%253D1&token=5be173-1-1594998865448Simply Science on Twitter: https://twitter.com/NRCanScienceSimply Science on Facebook: https://www.facebook.com/Simply-Science-580046026023390Simply Science on Instagram: https://www.instagram.com/simplysciencenrcan/Simply Science on LinkedIn: http://www.linkedin.com/company/natural-resources-canada