RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS
Regional Crop Report North East, 30 March 2007
Winter Wheat
Comment on current growth stages
Field conditions
Despite low temperatures the longer days are encouraging growth and
crops are developing quickly with most first wheats now at GS 31.
Other wheats mostly GS 30, with Cordiale the exception which although
a second wheat is also at GS 31.
No rainfall this week, but some very heavy dews keeping ground damp
but the land is firm now and all travelling well.
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
Trace
levels in some crops of Robigus.
Eyespot
Some
stem discolouration easy to find in most early sown crops.
Other
None
seen
Main
Pest problems
Level
and comment
Aphids
None
seen
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 Atlantis
to apply that was 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.
All
crops at leaf sheath erect stage now, and some GS31. But crops looking
stressed despite first N application. A little more sunshine needed
to get them going.
No rainfall this week, but some very heavy dews keeping ground damp
but the land is firm now and all travelling well.
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
None
seen
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.
Buds
extending above crop canopy in most crops, and most forward now at
yellow bud. Farmers worried about frost damage but rape is winter
hardy and don't expect conditions to compromise yields at all. Good
conditions during flowering and pollination are much more critical.
Field will travel well. Crops picking up earlier N application now
and most looking good, but where have compaction growth is impeded
and will apply foliar feed soon as conditions permit.
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.
