Grassland Calendar

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February
March
April
May
June
July
August
September

 
February
Plan fields to be reseeded this year.
Check leys after winter for leatherjacket and bibionid damage.
 
March
Check for chickweed infestation and treat early growth when conditions allow.
Check dock growth and plan programme of control for the year.
Use translocated herbicides, such applied from the end of March/early April according to weather and growth stage. Allow 28 days needed for maximum translocation. Use correct water volumes.
Docks need to be actively growing and still at the rosette stage.
Apply glyphosate for sward destruction before maize and
grass reseeds.
Continue to monitor pest activity.
Ploughing grass for maize? Apply
Dursban WG for leatherjacket control.
 
April

Reseeding
Monitor reseeds with respect to grass, clover and weed growth.
Check all pastures for docks, nettles and thistles.
Ensure herbicides are sprayed when weeds are at the rosette stage and actively growing.
Check reseeds for frit fly and leatherjackets.

 
May

1st cut silage
Check application timings.
After 1st cut if growth and weather suitable, or after 2nd cut if docks are going to seed quickly.

 
June

Check dock regrowth after 1st cut.
Plan grazing/silaging rotation to aim for reseeding in mid August.
Consider best pasture and weed management (topping/grazing) to get best out of future herbicide applications.
Check all pastures for docks, nettles and thistles.
Recommend dose and timing for glyphosate before reseeding.

 
July
Check all pastures for docks, nettles and thistles.
Recommend dose and timing for glyphosate before reseeding.
 
August
Where half doses of herbicide were applied in the spring, follow up with the second half dose.
Monitor reseeds with respect to grass, clover and weed growth.
Annual weed control.
Look out for crane fly activity.
Check best timing for frit fly control with Dursban WG.
Check Pestwatch reports for frit fly activity.
 
September
Monitor dock, nettle and thistle regrowth and consider treatments for this autumn or next spring.
Successful control can be achieved from translocated herbicides applied to actively growing weeds through the autumn.
Note crane fly activity to plan autumn leatherjacket treatment with Dursban WG to obtain the most
cost-effective results.
 
Above calendar from Dow Agrosciences yearly grassland calendar
 
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