It takes true grit to try to assess the size and quality of the United States apple crop on the first day of summer, when the June drop still isn’t over and growers are ­making decisions about whether or not to thin one last time. But each year, about 150 fruit growers and buyers gather in Grand Rapids, ­Michigan, for the annual Fruit Crop Guesstimate. This year, the 56th annual guesstimate was held on June 22 and produced the first estimate of the apple crop size. At that stage of crop development, there is a lot of guess in it. […]