The collars, which contain the chemical tetrachlorvinphos, make up more than half of flea and tick collars sold in the U.S., according to the EPA. They are much cheaper than many name brand collars and are largely aimed at low-income pet owners.
Harvest season is underway for crops such as soybeans and corn, but farmers’ yields are piling up. Near-historic low water levels on the Mississippi River are slowing down barges and driving up shipping costs. With lower cargo capacity, shipments are getting backlogged. And until barge traffic picks
