Looking at your Avatar, someone actually walked into the woods with you?

CALIFORNIA CODES
PENAL CODE

374. (a) Littering means the willful or negligent throwing,
dropping, placing, depositing, or sweeping, or causing any such acts,
of any waste matter on land or water in other than appropriate
storage containers or areas designated for such purposes.
(b) Waste matter means discarded, used, or leftover substance
including, but not limited to, a lighted or nonlighted cigarette,
cigar, match, or any flaming or glowing material, or any garbage,
trash, refuse, paper, container, packaging or construction material,
carcass of a dead animal, any nauseous or offensive matter of any
kind, or any object likely to injure any person or create a traffic
hazard.

No

Reminds me of the old Steve Martin bit...

He's in a restaurant and someone next to him says, "Hey, Mind if I Smoooke?" (he draws out the word)

Martin says, "Oh no, Mind if I Fart?!?" :D

Same as dropping the same stuff in your yard, but not as bad as allowing my dog to defecate in your tomato patch.

How about just tossing it into a plastic bag in your car until you can dispose of it properly? Hmmm, I've always wondered about peach, olive, dates, and nectarine pits; litter or next tree? I'm sure some people think banana peels, in an optimum growing environment, creates the next banana tree. Don't saddle your brain with decisions like this. I suggest a trash bag.

Hey, while I'm off the subject, here's an interesting factoid:
“3.6 billion pounds of dog waste/year is produced in the United States alone, equaling 800 football fields, one foot high."
http://scoop-de-poo.com/Scoop-Health.htm

Sherwood

blush blush, a river maybe - with some people swimming down stream.

Yes. No. Maybe?

No, apple core is not littering.