WhoshouldIsee Tracks

News From The Field - HEAR 2021/22

January / Ferbruary 2022

OSR crops are looking well coming out of a reasonably dry winter. Pigeon damage has been seen in some crops and growers should keep an eye out for damage, so not to lose green leaf area heading into final fertiliser applications. Crops are at various canopy sizes depending on sowing date. Remember to adjust fertiliser rates according to green leaf area.

HEAR plot Feb 2022

Light leaf spot is starting to come into crops further north and west according to AHDB forecasts. Growers should keep an eye out for symptoms as crops will soon grow on into stem extension as weather warms.

AHDB LLS Forecast Feb 2022

AHDB LLS forecast https://ahdb.org.uk/light-leaf-spot-forecast

Cabbage Stem Flea Beetle Research

As part on on-going research into CSFB in OSR NIAB have along with industry partners embarked on research into the pest. NIAB are calling for OSR samples to assess larvae numbers, and it is free! To get updates about the research or get involved follow https://www.niab.com/csfbsmart

CSFB Smart sample requirements

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November / December 2021

Crops are slowing down, the mild November means the risk of disease has increased and fungicide applications are now being considered. Many are waiting for conditions to cool before applying Kerb for blackgrass.

Rocca HEAR in Gloucestershire Nov 21

Disease Forecasts...

Phoma forecast https://ahdb.org.uk/phoma-leaf-spot-forecast

Phoma Leaf Forecast Nov21

Looking ahead the AHDB have released a preliminary forecast for Light Leaf Spot (LLS) depending on rainfall. Selecting different rainfall scenarios shows different risk levels of LLS.

Light Leaf Spot Forecast Nov 21

Forecasts for Light Leaf Spot can be found here  https://ahdb.org.uk/light-leaf-spot-forecast

 

October / November 2021

Crops are starting to slow down for winter now, most weed control for broad leaf weeds should be completed by now. Applications of Kerb for blackgrass are waiting on colder weather.

Rocca HEAR in Cheshire Oct 2021

The risk of Phoma has increased in October, see below and Figure 4. Fungicides will need to be applied where thresholds are met.

Phoma Leaf spotting seen on 25th October

The AHDB's Phoma forecast https://ahdb.org.uk/phoma-leaf-spot-forecast is showing increasing incidence of disease across most parts of the UK...

Phoma Leaf Forecst 29Oct21

 

Forecasts for Light Leaf Spot are expected soon: https://ahdb.org.uk/light-leaf-spot-forecast

 

September / October 2021

Crops are generally looking well, some a little too well with PGRs being considered to stop canopies getting too ‘winter proud’. Thoughts are now turning to post-emergence applications as the rain dries up to allow travelling on fields. Most have already applied a graminicide for volunteer cereals, but thoughts are now turning to well emerged blackgrass and broad-leaved weeds. With larger canopies growers should check the crop size before applying herbicide, such as Belkar to ensure good herbicide contact for weed control.

HEAR variety Rocca on 19th September

Phoma Risk Levels

With the rain the risk of Phoma increases, growers should keep an eye on the AHDB Phoma forecast for fungicide applications. According to the AHDB's Phoma Forecasting tool Phoma levels are at a lower incidence than the previous two seasons.

Phoma forecast from AHDB Key green no infection orange infections taking place and red at 10 incidence of infectionpng

 

 

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