Often times the plant associated with an insect observation can be of great importance for ID (i.e. oligolectic bees and lep larvae). Also, this information could prove useful in describing new habits of certain species. The way I would suggest is to move the favorite up next to the options, as it doesn’t really need its own section, replacing it with a plant host section.
I would also like to show some support for the idea to add agree and disagree buttons on IDs. A greater ability to show consensus while leaving more room to foster discussion via comments.