At our current power? I doubt it...the Qliphoth is hardy, even without its custodian fighting directly.

It's still demonic in its own right, though. That satchet Aoi threw was full of herbs that are dangerous to demons.

[He touches his own face, where a violet rash, or perhaps chemical burn, is clearly visible.]

You were unconscious at the time, but the vines recoiled from it.