I have a mind boggling problem with my apple tree. I have two Golden Delicious apple trees that have been growing for about 15 yrs. For the past two yrs one hasn't produced a single flower but is in full leaf. The other looks like it's doing fine with a full flush of fruit starting to grow. The trees are planted about 12' away from each other on a slight slope (the one without any fruit is at the bottom of the slope)
Any help would great.