I found a reference that shows that use of arsenic was active even at the end of the 19th century. In the book "The Arsenic Century: How Victorian Britain was poisoned at home, work and play" author James C. Whorton writes:
"The difference in scale between the two nations (the U.S. and Britain) consumption of arsenical pesticides was dramatized in 1891 when an English agricultural magazine protested that apples from America often arrived with a visible coating of arsenic left from excessive spraying."
Six parts per billion in apple juice or a visible residue on whole apples? I think we are living in safer times, friends. Send Dr. Oz a memo.