My Corkscrew Hazel was planted some fourteen years ago and has atained a quite mature height of approx. three metres. Then about three years back it developed a couple of suckers (Comon Hazel with a larger leaf) from the base of the tree. The suckers were cut back to base but more came back the following spring. This years suckers numbered about seven, the longest of which were 2 metres long. All have been cut back as flush as possible to the base of the tree. Apart from removing this coming seasons suckers as soon as they develop, I am at a loss as to the best way to sort this problem! Comments & advice welcome guys!