Peter - You write that American Beech are affected. There are Copper Beech
in our area, which are a variety of European Beech. They are also affected,
not dying (yet?). - Burkhard
On Wed, Jan 5, 2022 at 1:04 PM Peter Payzant <peter(a)payzant.net> wrote:
The beech leaf-mining weevil was first identified
<https://cfs.nrcan.gc.ca/publications?id=37778> as the insect responsible
for foliage damage on American Beech trees in the Halifax area in 2012. I
have a photo of damaged leaves on a tree near my house in Waverley from
2011.
There are now very few beech trees still alive here, and the woods have
opened up markedly with the loss of so many trees. As far as I can tell,
all remaining beech trees are infected.
As long as there are living beech trees in Nova Scotia, I don't think we
can say that this has ended.
--- Peter Payzant
On 2022-01-05 12:07 PM, Burkhard Plache wrote:
At Long Lake Prov. Park (Halifax), the majority (>3/4) of Beeches had most
leaves eaten away or severely damaged. Some trees were nearly bare.
Unaffected trees were mostly isolated from other beeches, typically young,
scattered trees.
In a forested area in Cape Breton (Lime Hills), nearly all (>95%) of the
beech trees in the forests were dying or dead. Those were beech dominated
hardwood forests (other dominant species were yellow birch and sugar
maple), and the area was some 1 km from the next road (i.e., spread of the
miner was unlikely by people).
I think the leaf miners have been around for at least 5 years. I think to
assess the impact, one would have to choose a sample area, and do a bit of
counting (# trees in area / # of trees affected / # of trees healthy) and
follow for a few years.
On Wed, Jan 5, 2022 at 5:10 AM David Webster <dwebster(a)glinx.com> wrote:
Dear All,
Early in 2021 there was concern about a Beech tree leaf miner. Can
someone tell me how that ended.?
In the Kentville area, except for one patch of trees in a location
normally wet year round and entirely dependent upon rainfall but bone
dry when I walked to it,they have fared well.
Dave
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