Pears with cork spot have bumpy surfaces and brown corky lesions in the flesh. Cork spot, a disorder of pears caused by a deficiency of calcium, was more prevalent than usual in Washington last season, Tim Smith, Washington State University Extension educator for north central Washington reported at the annual Pear Day. “We’re probably losing more fruit to calcium deficiency this year than all of the psylla and fruit rots combined,” he said. “We’re obsessed about psylla and spend a lot of money on it, but we’re losing more fruit to calcium problems than anything.” Cork spot in d’Anjou pears […]