notes and list
(working) with ID numbers:
Japanese larch, Larix
kaempferi (Lamb.) Carr.
P92 (May 31)
Origin: Japan, central Honshu
Exposure rating: 8
Number planted: 45
Number of survivors: 7
Percentage of survivors: ~16%
Height: 8.8 metres (September 3, 2008)
Height: none measured yet in 2009
Bole circumference: 73.0 cm (August 30, 2008)
Bole circumference: 78.0 cm (August 9, 2009)
August 16, 2009 - JL188 is the tree on the left
(trunk hidden) of the
two tallest trees.
near 2006 beaver dam:
- height approximately 26'6"
- circumference BH approximately 19" (~48 cm).
Japanese larch dominating native regrowth 14 years after reforestation.
The lower (smaller) trees are primarily native White birch, Pin cherry,
and Balsam fir. The yellow figure in the lower left centre of the
picture is an individual in a yellow rainjacket for scale.
Japanese larch autumn
2006 - note the broken (cracked) top caused by the wind
from a storm
larch spring 2007 - same tree as noted immediately
Japanese larch 1, spring 2006
Japanese larch 2, spring
Japanese larch 3, spring
Note 1: January 9, 2007:
the broken tops
3 Japanese Larch have been noted
among a total of roughly 3 dozen Japanese larch that were planted in
1994. This is a high percentage of broken tops, keeping in
mind that broken tops of any other species of tree (native or
introduced) at the breeding site are almost unknown as a result of wind
damage (pressure). A plantation of Japanese Larch in
coastal Newfoundland might be expected to suffer considerable
damage from wind storms. Even in areas of Newfoundland that are not
prone to strong winds, a freak wind storm might cause considerable
damage to a Japanese larch plantation.
Note 1a: October 3, 2007:
further to Note 1
above, a 4th Japanese larch with a broken top has been noted.
Note 1b: November, 2007:
further to previous notes, a 5th Japanese larch had its top
broken during a windstorm.
Note 1c: December 9, 2007:
further to the previous notes, a 6th Japanese larch with a broken top
Note 2: June
14, 2007: During September 2006, a number of Japanese
had lost most or all of their needles were noted. These Japanese larch
have not produced needles as of June 14, 2007.
The cause of the needle
loss is unknown. No obvious disease or pest has been observed.
Misc Field Notes:
6, 2007: noticed another Japanese larch with
a broken top (#3) in same stand as above
(October 14). The
broken top was noticed a day after a major wind storm. Photos taken January 8, 2007.
Nylon band on tree.
2006: noticed young Japanese larch with broken
(presumably in wind storm), inner field near 29 oak. Photos taken October 16, 2006.
This is the second young Japanese Larch with a broken
top (the other near beaver dam [#1, probably broken in 2005]).
October, 2006: nylon bands on 5 Japanese larch: these
all of their needles in the summer of 2006.
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