So they forgot what 'farming' is, and 'crops'. . . during a famine. I'm just going to be over here in the corner screaming into the uncaring void. Be back in a sec. (AAAAAAAAAHHHHHHHHHHHGGGGGGHHHHHHHHH). Okay I'm back.
Speaking of the famine That pig bastard, uh pork chop, bacon...(What was his name?) Greed! yes that pig bastard Greed is suspicious to me, the red locusts attacked a single floor and than magically disappeared when they are known to devour all and move on to devour more floors, Greed was conveniently situated to immediately take advantage of the situation before the dust even settled and he seemed to know that the red locusts would attack again, and was planning to take advantage again.
He either knows something about the locusts or knows someone who does.