There are more than 2,500 types of apples grown the United States every year, but only one apple gets to be the apple of our eye. For more than a half century, Red Delicious have been the darling of the apple world. But when it comes to apples, love can go sour. Gala are now the most popular and most grown apples in America, followed (in order) by Red Delicious, Granny Smith, Fuji, and Honeycrisp, according to the U.S. Apple Association. “The rise in production of newer varieties of apples aimed at the fresh consumption domestic market has caused demand for Red Delicious to decline,” Mark Seetin, the association’s director of regulatory and industry affairs, said in a statement. “However, Red Delicious is important in the export market, where it makes up roughly half of our apple exports.” Red Delicious has been America’s go-to fruit for decades. Originated in the 1870s,…