Suggestion: compile takeover actions and report them in a bullet list at TC, instead of individually when they happen. Add a sticker of "please don't spam this to the realm" like civil work has.
Recommendation: don't bother the knights with food trades. I know you want them to be more involved with their region, but it's hard enough to get lords to care about food, I very much doubt more than a fringe of the knights in the game care about this stuff.