I have seven birch trees about 10 years old and 20 ft high planted in
two groups of threes and one single. They are planted in Mississauga,
Ontario. In spring the tree leaves emerged normally and all was
well. About four weeks ago the trunk about 5 feet from the top of the
trees started to bend quite severely. This happened to one after the
other and all seven are now bent. The leaves on the lower portion of
the tree are fine. On the upper portion where the trunk is bent the
leaves appear to be fine as well however their development is about 3
weeks behind the lower leaves. The leaves do not appear to have any
sign of bugs or other symptoms. Other birch treees in the
neighbourhood are fine and not bending.

Any help would be appreciated.

Tom

On Jun 7, 7:47�am, wrote:
I have seven birch trees about 10 years old and 20 ft high planted in
two groups of threes and one single. �They are planted in Mississauga,
Ontario. �In spring the tree leaves emerged normally and all was
well. �About four weeks ago the trunk about 5 feet from the top of the
trees started to bend quite severely. �This happened to one after the
other and all seven are now bent. �The leaves on the lower portion of
the tree are fine. �On the upper portion where the trunk is bent the
leaves appear to be fine as well however their development is about 3
weeks behind the lower leaves. �The leaves do not appear to have any
sign of bugs or other symptoms. �Other birch treees in the
neighbourhood are fine and not bending.

Any help would be appreciated.

Tom

Sounds like the trees were affected by a sudden frost just as the buds
were opening... the entire north east experienced the same weather
condition and many fruit trees were damaged. Birch would be affected
by a sudden frost especially if a particularly wet spring and if
planted in a wet spot. You may lose the very top branches of those
trees (the thinner upper branches suffered frost bite) but those trees
should make a full recovery... I have birches that experienced the
same here in NY's Catskill region.