Some farm-belt advisers to the Trump campaign say they want the president-elect to put the brakes on agriculture-industry consolidation. Some farm-state advisers to President-elect Donald Trump are speaking out against a wave of mergers among global seed and pesticide companies, warning they could boost the prices farmers pay. The advisers, including state officials and farmers, warn that consolidation will leave farmers with fewer choices among suppliers and shift a large portion of critical agricultural research to foreign ownership. Several members of an agricultural advisory committee formed last summer to advise the Trump presidential campaign are calling for more scrutiny of the pending deals. The planned combinations would reorder the $100 billion global market for seeds and pesticides at a time when farmers are grappling with slashed profits amid a multiyear slide in crop prices.