Re: picking apples
<span style="font-style: italic">2464; amended June 11, 2010, effective June 12, 2010, 40 Pa.B. 3095. Immediately preceding text appears at serial page (326569).
§ 135.2. Unlawful actions.
In addition to the prohibitions in the act on lands, waters or buildings under Commission ownership, lease, agreement, control or jurisdiction, it is unlawful, except with the permission of the person in charge of the lands, or the written permission of the Director to:
(1) Camp or use campsites. </span>
<span style="font-weight: bold"> (2) Plant, gather, cut, dig, remove or otherwise injure plants or parts thereof, including trees, shrubs, vines, flowering plants, cultivated crops, mushrooms and fruits of berry-producing plants
<span style="font-weight: bold">§ 135.41. State game lands.
(a) Restrictions limited. The following exceptions to § 135.2 (relating to unlawful actions) pertain to lands and waters designated as State game lands:
(1) Mushrooms and fruits of berry-producing plants may be picked.
so based on the above I would say no to apples