During the international conferences EMAPI 2019 Prague and IRS 2022 Budapest, the French Ragweed Observatory interviewed some researchers about Ambrosia species in their country.

Serbia, Poland, Hungary, Netherlands, Israël, Luxembourg, Austria, France, Ukraine,… You can find all the interviews on Youtube :

https://www.youtube.com/watch?v=7RnLbb02n00&list=PLEJX7ly3C1b71QugQj_qINwMOPCfvB_Z5