Proposal for a biological attack against the Church's food resources wasn't the best one, i admit. But let's consider the other?
1) Biological attack against the horses and draft dragons on the mainland. By using the OWL's remotes as "fleas", we could create a nice, perfectly controlled pandemy, that crippled the Church's supply of draft animals.
Of course, it is necessary to take measures, so the pandemic wood look like a completely natural phenomenon - a "pure coincidence, damned heretics just first "invented" how to cure the problem"
2) Biological attack against industrial crops. Flax, hemp, other non-edible, but the necessary objects. The army without pants will be quite clearly not too efficient, as well as fleet without the ropes.
3) Biological attack directly against the Church's army. Infect the soldiers with something certainly not fatal, but incapacitating for sometime. One-off measure to create a decisive advantage before the critical battle.
Well?
