Trick-or-treaters might want to hold on to those Reese's Cups this Halloween as sharp increases in peanut butter prices have begun going into effect following one of the worst peanut harvests in decades.
Kraft raised prices for its Planters brand peanut butter by 40% starting Monday, while ConAgra has instituted increases of more than 20% for its Peter Pan brand that went into effect last month.
J.M. Smucker, which makes Jif, will introduce price hikes of around 30% starting Tuesday.
Consumers, meanwhile, are already seeing these increases reflected at grocery stores.