RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS
Regional Crop Report East Midlands, 18 May 2007
Winter Wheat
Comment on current growth stages
Field conditions
Forward
crops have ears emerging with many in boot to boot splitting. Late
drilled crops have flag leaf out.
Continued
wet days either as heavy showers or wet nights has meant that crops
are wet but soils are OK from a travel point of view. Dry afternoon
allowed some spraying on Monday. Some late N gone on this week - am
doing tissue analysis on bread wheats to ascertain N uptake - crops
appear to have taken a lot of N up recently by the way they have greened
up to a dark green.
Main
diseases Present
Level
and comment
Brown
Rust
Not
a problem so far.
Mildew
Levels
very low.
Septoria
tritici
Most
crops clean down to leaf 4 but with continued wet weather T1 sprays
now running out of steam.
Yellow
Rust
Now
present on Robigus where 3 weeks + after T1
Eyespot
Very
little seen.
Other
Main
Pest problems
Level
and comment
Aphids
None
seen
Frit
fly
None
seen
Leatherjacket
None
seen
Opomyza
None
seen
Slugs
Slugs
grazing top leaves but not damaging. A lot of slime trails about in
spite of the dry.
Wheat
bulb fly
None
seen
Wireworm
None
seen
Other
Main
weed problems
Level
and comment
Blackgrass
No
further treatment.
Meadow
grasses
No
further treatment.
Rye
grass
No
further treatment.
Bromes
No
further treatment.
Cleavers
Some
regrowth from cleavers stunted by spring applied Atlantis - not moving
up crops yet but some will need control.
All
crops now have ears fully emerged - flowering starting on some and
no more action to be taken unless something abnormal such as high
aphid build up. Awn sprays keeping crops clean of all diseases.
Continued wet days either as heavy showers or wet nights has meant that crops
are wet but soils are OK from a travel point of view.
Main
diseases Present
Level
and comment
Brown
Rust
None
seen
Mildew
No
new pustules.
Net blotch
New
growth remains clean
Yellow
Rust
None
seen
Eyespot
None
seen
Rhynchosporium
Veery
low levels.
Other
BYDV
patches starting to appear in early sown crops that had only one autumn
aphicide.
Most
crops green almost all over with just odd late flowering plants. Pods
developing well and rain come in time to keep them going - harvest
end June/early July on the cards.
Continued
wet days either as heavy showers or wet nights has meant that crops
are wet but soils are OK from a travel point of view.
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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.