Georgian wine (ugh, diosulphites or whatever) not welcome in Ruzzia comes to mind. But that was also an actual blam-blam-boom war, not just economy strangling.
Wiki on 2006 Russian ban on Georgian and Moldavian wine: 2006 Russian ban of Moldovan and Georgian wines - Wikipedia
I’m guessing this statement from Georgia didn’t help much, " Georgian Defense Minister Irakli Okruashvili stated that “many [Georgian] wine producers exported falsified wine to Russia, because Russia is a market where you can sell even turds”.(2006 Russian ban of Moldovan and Georgian wines - Wikipedia) Okruashvili thought that Russia’s decision to ban the import of Georgian wines “was not a surprise” for Tbilisi.