RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS
Regional Crop Report North East, 16 March 2007
Winter Wheat
Comment on current growth stages
Field conditions
Lot of crops at GS 30 now and with daytime temperatures at 9 - 12
C they are growing quickly now, despite night temperatures down to
0 - 4 C. No rainfall this week. All second and continuous wheats had
N this week. Most wheats after rape or peas had no N unless later sown
or a 'thin' crop. No N planned for majority of first wheats until into April.
The land has dried well and most fields travelling OK now, but still
need some caution in low lying areas where you might suddenly get
that sinking feeling.
Main
diseases Present
Level
and comment
Brown
Rust
Mostly
disappeared now after early attack.
Mildew
As
with Brown rust it has mostly disappeared now after early attack.
Septoria
tritici
Present
in all crops with all susceptible varieties showing significant level.
Yellow
Rust
None
seen
Eyespot
Some
stem discolouration easy to find in most early sown crops.
Other
None
seen
Main
Pest problems
Level
and comment
Aphids
aphids
present in crops treated before 3rd week of October.
Frit
fly
None
seen
Leatherjacket
None
seen
Opomyza
None
seen
Slugs
Later
crops in poor seedbeds are still being watched.
Wheat
bulb fly
None
seen
Wireworm
None
seen
Other
Gout
Fly - moderate
levels can be found in all crops sown before the end of September.
Main
weed problems
Level
and comment
Blackgrass
No
new problem areas seen yet this year but still have some herbicides
to apply that were recommended in December.
Meadow
grasses
Emerging
in unsprayed fields.
Rye
grass
Low
levels emerging. Some crops have been treated Peri or early Post emergence
where spraying was delayed.
Bromes
Cleavers
Others
Post
emergence herbicides being applied to earliest crops now, for annual
meadow grass and broadleaf weeds.
Crops
fully tillered and at leaf sheath erect stage, which coincides with
timing for first PGR application. Fields dried up well this week ,
but many crops are overall yellow. They will green up quickly now
had early N and as weather gets warmer.
The land has dried well and most fields travelling OK now, but still
need some caution in low lying areas where you might suddenly get
that sinking feeling.
Main
diseases Present
Level
and comment
Brown
Rust
None
seen
Mildew
Significant
level in Carat and Pict but Saffron very clean.
Net-blotch
Significant
level in Carat and Pict, but Saffron only very low level.
Yellow
Rust
None
seen
Eyespot
None
seen
Rhynchosporium
None
seen
Other
None
seen
Main
Pest problems
Level
and comment
Aphids
Aphids
present in crops treated in early autumn.
Leatherjacket
None
seen
Slugs
No
damage noticed this week.
Wireworm
None
seen
Other
None
seen
Main
weed problems
Level
and comment
Blackgrass
As
expected have problem areas in some fields with patches blackgrass
coming through.
All
forward crops have flower buds visible now towards top of crop canopy,
and some approaching yellow bud. Later crops mostly buds enclosed.
Dried out well now, and travelling is good. Some crops have very spindly
plants which are coming into flower but they have little leaf on them.
Hopefully they will fill in OK as they take up recently applied nitrogen.
All risk predictions published by CropMonitor are provided in good faith and are NOT a substitute for
rigorous fieldwalking in combination with advice from BASIS qualified persons. CropMonitor accepts no liability
for crop loss or damage resulting from the use of CropMonitor.
