| Regional Crop Report South East, 02 March 2007 |
| Winter Wheat |
| Comment
on current growth stages |
Field
conditions |
| September/mid-October
sown crops generally remain at mid-/late-tillering stages with the
most advanced crops around GS 30 (basal internode now discernible
in most forward/thickest crops), while late October/early November
sown crops are now mostly GS 21+. Early nitrogen+S only being considered
on late-sown wheats, second wheats, rabbit grazed fields and Soissons.
|
Continuing
unsettled conditions means many fields at field capacity. |
|
| Main
diseases Present |
Level
and comment |
| Brown
Rust |
Still
common in all September sown crops of Alchemy, Claire and Solstice
although drying up after colder weather. No action required until
T0 timings in mid/late March. |
| Mildew |
Still
hard to find active pustules following cold snap in early February. |
| Septoria
tritici |
Lesions
now obvious on older leaves of all September/early October sown wheats
and with ongoing wet and mild conditions the level of Septoria inoculum
is inevitably high. |
| Yellow
Rust |
None
seen. |
| Eyespot |
Some
stem based browning can now be found in earlier sown second wheats
in particular - will need close monitoring in Spring. |
| Other |
None
seen. |
| Main
Pest problems |
Level
and comment |
| Aphids |
|
| Frit
fly |
None
seen. |
| Leatherjacket |
None
seen. |
| Opomyza |
None
seen. |
| Slugs |
None
seen. |
| Wheat
bulb fly |
None
seen. |
| Wireworm |
No
further damage seen. |
| Other |
Gout
fly - some very high levels of infestation noted in a few locations
(80-100% plants), primarily in fields located in sheltered valleys
and also blocks of continuous wheat - affected plants have up to 2-3
gouted tillers present, with relatively weak remaining tillers.
|
| Main
weed problems |
Level
and comment |
| Blackgrass |
Low
levels of blackgrass (GS 21-29) can be found in some crops treated
in late October/November. |
| Meadow
grasses |
Control
measures in place. |
| Rye
grass |
Appears
to be a significant flush in problem fields this autumn (at GS 10-13). |
| Bromes |
|
| Cleavers |
Large
flush present in some crops at cotyledon to 2 whorls. |
| Others |
Cranesbill
becoming an increasing problem. |
|
| Regional Crop Report South East, 02 March 2007 |
| Winter Barley |
| Comment
on current growth stages |
Field
conditions |
| Earliest
sown crops now at GS25-29, with most crops around GS 24-25+. Any fields
with higher soil N levels are supporting canopies with high tiller
numbers. |
As
wheat |
|
| Main
diseases Present |
Level
and comment |
| Brown
Rust |
Widespread,
pustules can be found in all crops of Sequel/Boost in particular. |
| Mildew |
Mostly
browned pustules can be found on lower leaves Sequel/Pearl. |
| Net-blotch |
Significant
levels noted in crops of Sequel that follow barley. |
| 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 |
None
seen. |
| Wireworm |
None
seen. |
| Other |
None
seen. |
| Main
weed problems |
Level
and comment |
| Blackgrass |
Low
to moderate populations now present in some crops (GS 10-13). |
| Meadow
grasses |
|
| Rye
grass |
|
| Bromes |
|
| Cleavers |
|
| Others |
|
|
| Regional Crop Report South East, 02 March 2007 |
| Winter Oilseed Rape |
Winter
Oilseed rape |
| Comment
on current growth stages |
Field
conditions |
| Bulk
of crops now approaching enclosed bud stage with noticeable proliferation
of basal rosette buds. Despite wet soils, most crops remain a healthy
green showing good rooting and have GAI canopies currently around
1.5-2+, indicating around 80-100+kg/ha nitrogen already within the
crop. |
As
wheat |
|
| Main
diseases Present |
Level
and comment |
| Club
root |
No
further reports. |
| Downy
Mildew |
None
seen. |
| Light
Leaf Spot |
None
seen. |
| Phoma |
Crops
retreated in December remain free from any re-infection. |
| Powdery
Mildew |
None
seen. |
| White
Leaf Spot |
None
seen. |
| Other |
None
seen. |
| Main
Pest problems |
Level
and comment |
| Aphids |
None
seen. |
| Flea
beetle |
No
further reports. |
| Leatherjacket |
None
seen. |
| Slugs |
Crops
beyond growth stages where damage can occur. |
| Other |
No
further reports of damage. |
| Main
weed problems |
Level
and comment |
| Blackgrass |
|
| Meadow
grasses |
|
| Rye
grass |
Heavy
infestations in some fields. |
| Bromes |
|
| Cleavers |
|
| Others |
|
|
Crop Report compiled by Farming Online from reports
received by members from the Association of Independent Crop Consultants