Now you may see why I used the ducks in the first place.
As for the glass, I recommended using tempered glass and of course I would expect the user to enclose the area in some kind of barrier such as a temporary fence so there will be no disaster.
The reason that there are no (or few) herbicides labelled for use on Jerusalem Artichokes is because they are considered a food crop. Need to go slightly off-label to use chemicals sometimes.
This label for Lesco Eliminate lists Jerusalem Artichoke along with all the warnings for use.
http://www.franksuppalandscapi...