Significant different pollination rates for close locations
I have 2 areas with apples separated by maybe 100 yards with my house and some big trees in the in between area.
the area in front of my house, which includes a couple of mature apple threes, 4 flowering crab, and a couple dozen younger apple trees seems to have a near 100% pollination rate. A couple of cherry and plum trees in the same area also get fully pollinated.
My other apples tree area with 5 year old trees fares poorly. There are at least 5 different varieties of apple in this area which were selected with an eye towards cross pollination so theoretically that shouldn't be the problem.
However, assuming bees that can find trees in one place would find a bunch more 100 yards away I'm thinking of just planting a couple of flowering crab trees in the area doing poorly.
thoughts or suggestions on this are welcomed.