But it is a blight that is threatening the food supply, is it not? I am admittedly quite new, but Zenith did not appear to be a threat in that regard.

[the way diluc sees it, it seems better to research ways to cure or mitigate the blight rather than forcibly take withering crops. but then again, he doesn't have all the information...and unlike dimitri, he hasn't been through a war already, so going through one at all is unconscionable for diluc.]

I am no scholar, but surely research would be more useful.