I have 3 English Walnut trees that are about 8 years old. For the past 3 years I gotten one walnut off the same tree. I've never gotten any nuts off the other two trees. This spring I thought I was going to have a banner year since I had all sorts of nuts about the size of an olive on all the trees. However, it appears they have all fallen off again. A friend of mine that also has some trees says he also has the same problem every year. Any idea what might be causing this? Soil, temperature....? Thank you
