I have four Galloway pear trees that are five or six years old all four of them had plenty of fruit last year. They are all 4in in diameter at least. this year three of them are totally covered in flowers and the one has no flowers. I noticed a couple small buds on it and when I broke some branches its still green inside. Do you think it is dying or it will it recover? I did not do any type of spraying the spring just threw a little bit of fertilizer around each tree in March.