Well, it is not a so big a deal to make the apples go all the way around, but to make one when you are knitting in the round is harder.
Duplicate stitch is a method of knitting over the stitches with another yarn using a tapestry needle and yarn. It is not real hard to learn, it can be considered an embroidery technique but it looks like it was knit.
Intarsia is a way to make a picture or single motif on something by knitting to the object, in this case an apple, then dropping the background color and working with the apple color. You drop the apple color at the edge of the apple and join another background color and continue working with it. Then when you come back (this only works back and forth) you drop the background color and pick up the apple color, do the apple part, drop the apple yarn and pick up the other background color. You have to twist the yarns around each other (sort of ) when you switch colors or there will be holes. You keep doing that until you have "drawn" the apple in. There is some way to do some sort of intarsia in the round. Do a search on this site maybe or elsewhere and see what you find.
The pattern is written for the apples to go all the way around, that is why it is no big deal to them. In this case you can't just trust the pattern, because you don't want to do what the pattern says and your change requires another technique.
There has got to be a way though.