It is not uncommon to find Aster Yellows
in canola most years. However, this year
the infection rates in canola are as
high 10-40% in many areas.
Says Evans, "However, our Agri-Coach
professionals began to notice unusual
disease symptoms in wheat fields
adjacent to infested canola fields
together with very high levels of leaf
hoppers."
In infested wheat fields the disease has
taken the form of yellowish to reddish
foliage along with premature dying of
randomly scattered wheat plants at
anthesis or early milk stage.
Areas such as Swan River, MB and the
northeastern corner of Saskatchewan have
up to 30-40% of bleached or dying heads
observed in wheat fields infected with
Aster Yellows.
The symptoms have also been observed in
central and northern Alberta. This will
likely result in significant yield loss.
Diseased wheat, barley and canola
samples gathered throughout the prairies
by Agri-Coach field personnel have been
confirmed positive for Aster Yellows in
tests performed CFIA approved laboratory
Phyto-Diagnostics Ltd run by Dr. Peter
Ellis.
Additional samples are being forwarded
to Agriculture Canada personnel for
testing.
"It is felt that this year the Aster
Yellows infestation occurred as a
consequence of unusually high levels of
leaf hoppers arriving in prairie Canada
from the US in mid-May to early-June.
"Early spring tests of the leaf hoppers
by Manitoba Agriculture confirmed higher
than normal levels of phytoplasmal
infection.
Their is the answer!!!!!!!!!
in canola most years. However, this year
the infection rates in canola are as
high 10-40% in many areas.
Says Evans, "However, our Agri-Coach
professionals began to notice unusual
disease symptoms in wheat fields
adjacent to infested canola fields
together with very high levels of leaf
hoppers."
In infested wheat fields the disease has
taken the form of yellowish to reddish
foliage along with premature dying of
randomly scattered wheat plants at
anthesis or early milk stage.
Areas such as Swan River, MB and the
northeastern corner of Saskatchewan have
up to 30-40% of bleached or dying heads
observed in wheat fields infected with
Aster Yellows.
The symptoms have also been observed in
central and northern Alberta. This will
likely result in significant yield loss.
Diseased wheat, barley and canola
samples gathered throughout the prairies
by Agri-Coach field personnel have been
confirmed positive for Aster Yellows in
tests performed CFIA approved laboratory
Phyto-Diagnostics Ltd run by Dr. Peter
Ellis.
Additional samples are being forwarded
to Agriculture Canada personnel for
testing.
"It is felt that this year the Aster
Yellows infestation occurred as a
consequence of unusually high levels of
leaf hoppers arriving in prairie Canada
from the US in mid-May to early-June.
"Early spring tests of the leaf hoppers
by Manitoba Agriculture confirmed higher
than normal levels of phytoplasmal
infection.
Their is the answer!!!!!!!!!
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