Wheat and barley crops are slowly
filling in as crops finally begin to emerge on the heavier
Slugs have started to become an issue and
are causing the most damage in wheat following oilseed rape.
Thankfully seed-beds are generally much
better than last year, which is helping to reduce damage.
Pre-emergence herbicides have been activated since the rain, and
any emerged weeds now showing signs of chemical uptake. A key issue
to consider soon will be Atlantis timing for blackgrass control.
This will have to be delayed in some cases until the later-emerging
parts of fields reach a sufficient growth stage.
Volunteer beans have been emerging
exceptionally fast. They are requiring prompt treatment as they are
smothering wheat crops almost as soon as they emerge. There are
plenty of options for broad-leaved weed and meadowgrass control in
wheat and barley. Since the demise of IPU, chlorotoluron the most
obvious substitute if the variety is approved.
Oilseed rape crops have improved
tremendously over the past few weeks. Phoma has been non-existent
in the dry conditions but expect to see lesions appearing from now
onwards. If crops are backward they will be at greater risk from
phoma, so take priority with any fungicide applications. Light leaf
spot control is also worth considering when selecting products.
Mixing a residual herbicide such as propyzamide or carbetamide may
also be possible if trying to control blackgrass, ryegrass or
Winter beans are going into much better
seed-beds than last year, with pre-emergence herbicides the most
important for broad-leaved weed control and the first line of
attack against grass weeds.