Almost all the winter oats I look at are looking pretty stressed, probably a combination of the cold and some herbicide/PGR. However for balance one crop I went to today, on Cotswold brash, is looking especially stressed, symptoms exactly as the OP describes - what has it had applied to it? Absolutely nothing!
Winter oats not looking happy at the moment!
- Thread starter JCfarmer
- Start date
- Location
- East yorks
All my spring crops have purple and blue tips and have had nothing applied just no rain since drilling and 16 frosts in April here
The majority of my oats are on light sandy land.
- Location
- Lincolnshire
Back in the winter of -18 the cold reduced my winter oats to little brown stumps. All grew again into a decent crop. What the need is heat.
Just checked FMC tank mix guide and that is not an approved mix. Your agronomist might have a problem!
Ours on lighter patches ,are like yours , Ours not had any thing yet ,look really good on rest of field , half inch of warm rain ,and then same again ,a few days later probably do more good ,
Chemical nick
Member
Our oats exactly same symptoms. Had similar mix except no ally max. Combination of frost and pgrs the culprits. Younger leaves green so told myself to not look for a week!
mine are the same .
They are suffering from a lack of N Available to them but the only thing its had is a Hormone Herb. couple of weeks ago.
Im not worried about them tbh, as rain next week will help ,warmer would be just as much help as well i guess.
No growth reg used ,as i considered the unusual cold / and to a lessor degree dry conditions are doing that fine on their own.
They are suffering from a lack of N Available to them but the only thing its had is a Hormone Herb. couple of weeks ago.
Im not worried about them tbh, as rain next week will help ,warmer would be just as much help as well i guess.
No growth reg used ,as i considered the unusual cold / and to a lessor degree dry conditions are doing that fine on their own.
- Location
- Leicestershire
What variety are your oats? I'm seeing the symptoms you describe across all of the oats I'm walking, but more pronounced on Mascani, less so on Eagle. I think we are seeing a combination of factors which are leading to the stress, most notably diurnal temperature fluctuations, successive frost, drought.
There is a condition in oats called 'red oats' which has an unknown cause and is therefore probably caused by stress factors. I'd also say we are seeing some dark leaf spots - again which have an unknown cause. BYDV of course does cause red/purple symptoms in oats, but given that this is widespread across the field rather than small patches (in my area) then this is unlikely to be the cause. I wasn't finding many aphids in most oat crops in my area last autumn so no insecticide applied, apart from one earlier sown block, which did have a well timed insecticide - and this crop is also showing the reddening symptoms.
The top two leaves are free of symptoms and once further leaf layers emerge and the stem extends then the crop will begin to look far more healthy
IMHO the tank mix you describe as too heavy for oats. Several years ago I did see irreversible damage from a SU herbicide mixed with PGR and fungicide. This was applied later than yours. The herbicide part of the tank mix was only applied to the headlands and not the main part of the field and there was a significant yield loss. I always split out recommendations like that with the herbicide in a separate application to the other products.
In spring oats last season just the SU + fluroxpyr gave the crop significantly more stress symptoms than an SU alone.
I'm trying to avoid metsulfuron based products where possible in oats as I believe that active in particular causes more stress than others.
Only one of my clients has a applied a PGR so far to his oats, and that was mainly due to the slurry application which has given a large canopy. PGR for most is likely to be one application at GS32 - when hopefully we have had some rain and it is warmer (only 1mm here this week.)
Breakthru
Member
- Location
- Scottish Borders
Of all the crops locally WO were stunned the hardest with the frosts and the sub zero winds.
I’m not an oat grower for the reasons you mention but I think there’s an eamu (off label) approval for half rate liberator. The only other option is DFF which I this on label but others will correct me.
Bit of grass wont hurt.
You dont need an agronomist walking around them either.
A very hardy and simple plant to grow.
You dont need an agronomist walking around them either.
A very hardy and simple plant to grow.
The Spanish Liberator label may well be different, apart from being written in Spanish that is.
MNBVCXZ
Member
- Location
- Central Southern UK
It’s interesting isn’t it, we are really concerned about having flat oats and do everything to avoid it.
Reduce early N as that helps and only apply the majority once the plants start stem extension. This leads to an unintentional stressing of the crop through lack of N. Then we apply to but unaware of the stressed crop PGR/MSM/fungicide with adjuvants added, shock will then show. Usually stunted/orange/purple colour.
To avoid this, N first followed by herbicide without MSM, PGR once stem extension starts.
Don’t be lazy they are actually a good crop to grow, just don’t try and grow them like our grandparents did. You also need experience on your side, I suspect the agronomist who made the recommendation doesn’t have this yet?!
Reduce early N as that helps and only apply the majority once the plants start stem extension. This leads to an unintentional stressing of the crop through lack of N. Then we apply to but unaware of the stressed crop PGR/MSM/fungicide with adjuvants added, shock will then show. Usually stunted/orange/purple colour.
To avoid this, N first followed by herbicide without MSM, PGR once stem extension starts.
Don’t be lazy they are actually a good crop to grow, just don’t try and grow them like our grandparents did. You also need experience on your side, I suspect the agronomist who made the recommendation doesn’t have this yet?!
- Location
- Snodland kent
New to oat growing, no PGR applied, I thought contracts didn’t allow shortners
Not surprised if he's recommended them Ally, triazole and PGR in the same tank.
One field we did (by mistake) about 10 years ago - came to harvest OK, but about 20% yield reduction and 10 days late.
- Location
- Lincolnshire
Might not be on contract.