The TFF Fungicide trial

[homefarm]

Adexar plot will be getting 50% max dose, Aviator 80% max dose, Why if both get 1 litre of Bravo does plot two not get 50 % Aviator.
Perhaps I would rather see if Bravo adds anything to 1litre of Aviator. Be interesting either way.

 

[Feldspar]

My agronomist here this morning and is convinced this year has all the signs of a very high pressure year

He's not holding back on spend which is VERY unlike him ;-)

It's looking like quite an interesting year which might show up the differences between cosmetic and yield robbing disease. Some crops had quite a bit of disease on the earlier leaves which is still very visible. However, the signs are the T0 has worked well to get on top of it. It will be interesting to see if letting that disease in before the T0 timing (or due to omitting T0 entirely) will lead to nascent symptoms appearing in due course.

Cordiale with no T0 (will try and get another picture of the Cordiale which did have T0):

 

[Ian at Bayer]

Indeed. Is that an offically supported mix then @Ian at Bayer?

A thank you to Static for bringing this excellent thread to my attention and I am very interested to read about Clive`s fungicide challenge. Over a number of years we have encouraged farmers to spray plots in their wheat fields to compare different fungicides against Aviator235Xpro. This was our `Judge for yourself challenge` which some readers may have participated in. The results of these challenges were posted on our website. Have a look at the video via this link :

http://www.bayercropscience.co.uk/y...library/testimonials/judge-for-yourself-2013/

We would be happy with the proposed rate of 1.0 L/ha of Aviator as this will deliver an 80% dose of a primary triazole alongside the SDHI, meaning you have a balanced mixture of azole/SDHI which is crucial from an anti-resistance point of view. We are also happy for Aviator to be tank-mixed with a multisite at the T1 timing as generally you are in a more protectant scenario at T1 and the multisite will add to this. At T2, final leaf 2 will have been emerged for approx. two weeks and may have latent disease within it. Adding a multisite at this stage could compromise any systemic SDHI + azole product, reducing curativity, which is why we do not recommend adding a multisite at T2. (however it does mix)

If anything I would have preferred to have seen the comparison on a more disease susceptible variety as this would be more likely to tease out any differences between fungicide programmes.

I will keep my eye on this thread and look forward to reading about any observations as well as hearing how the plots fared.

 

[Clive]

A thank you to Static for bringing this excellent thread to my attention and I am very interested to read about Clive`s fungicide challenge. Over a number of years we have encouraged farmers to spray plots in their wheat fields to compare different fungicides against Aviator235Xpro. This was our `Judge for yourself challenge` which some readers may have participated in. The results of these challenges were posted on our website. Have a look at the video via this link :

http://www.bayercropscience.co.uk/y...library/testimonials/judge-for-yourself-2013/

We would be happy with the proposed rate of 1.0 L/ha of Aviator as this will deliver an 80% dose of a primary triazole alongside the SDHI, meaning you have a balanced mixture of azole/SDHI which is crucial from an anti-resistance point of view. We are also happy for Aviator to be tank-mixed with a multisite at the T1 timing as generally you are in a more protectant scenario at T1 and the multisite will add to this. At T2, final leaf 2 will have been emerged for approx. two weeks and may have latent disease within it. Adding a multisite at this stage could compromise any systemic SDHI + azole product, reducing curativity, which is why we do not recommend adding a multisite at T2. (however it does mix)

If anything I would have preferred to have seen the comparison on a more disease susceptible variety as this would be more likely to tease out any differences between fungicide programmes.

I will keep my eye on this thread and look forward to reading about any observations as well as hearing how the plots fared.

Thanks Ian

interestingly BASF also said it was a shame it was skyfall and not a more dirty variety as well - I guess that's what really shows the differences up

but I guess these products will be used on many skyfall cops across the country so how they perform is as relevant as on anything really

all set up for application tomorrow, plan to spray a sq meter with paint so we can see what leafs got covered

your welcome to come visit the field any time

 

[richard hammond]

Thanks Ian

interestingly BASF also said it was a shame it was skyfall and not a more dirty variety as well - I guess that's what really shows the differences up

but I guess these products will be used on many skyfall cops across the country so how they perform is as relevant as on anything really

all set up for application tomorrow, plan to spray a sq meter with paint so we can see what leafs got covered

your welcome to come visit the field any time

Clive, well done for not opting for a dirty variety! is that production management or have I missed the point of disease score ratings??

 

[Ian at Bayer]

Thanks Ian

interestingly BASF also said it was a shame it was skyfall and not a more dirty variety as well - I guess that's what really shows the differences up

but I guess these products will be used on many skyfall cops across the country so how they perform is as relevant as on anything really

all set up for application tomorrow, plan to spray a sq meter with paint so we can see what leafs got covered

your welcome to come visit the field any time

Yes Skyfall is widely grown and as we all know disease progression will depend on the weather over the next couple of months.

Many thanks for the kind offer of a field visit which is much appreciated. If you are at Cereals this June please come to our stand and I will delighted to meet you and have a chat (might even be able to find you a cup of tea).

 

[cornpicker]

Clive

I popped in the field yesterday and got a few pics. (see above)

With the recent rain and warmer weather the crop has definitely moved on, there’s definitely more Septoria in the crop now. I have to say though, the crop’s a lot cleaner than some fields I’ve been in!

It will be interesting to see how the weather develops over the weeks ahead and as we move into T2, also noting your comments about this being a particularly drought prone site .

I saw the post about “AgCelence” plant health!!! I know it was a comment about the branding itself, but if anyone is interested to understand more about the plant health benefits of Xemium, then check out this link.


http://www.agricentre.basf.co.uk/agroportal/uk/en/crop_solutions/cereals_5/xemium/agcelence_plant_health/xemium_insight_with_julie_smith/standard_page_28.html


Julie Smith, plant pathologist at ADAS Rosemaund, has worked extensively with Xemium. She’s just written a summary piece on Xemium’s plant health effects. The section on water use efficiency and stress tolerance is particularly appropriate for the TFF fungicide trial.


More than happy to take any questions about this.


Hope the spraying went OK today.

 

[Clive]

Plots being sprayed yesterday

 

[Clive]

Got some time lapse cameras coming on Friday that im going to stick in the plots - might show up some differences

also hope to get a weather station working (our old one broke a year or so ago and I have never bothered sorting it) might be useful info relevant to the trail I feel ? Thunderstorms on Saturday and steady rain today, trial filed getting 50% of its N3 split - I have decided to split this final application as I think we might benefit this year from later N timings

 

[Clive]

Update

Final N applied to this field earlier this week taking total to 200kgs

If potential is there it will get an additional 40kgs of liquid urea on the ear for protein

Looks like the Broadway Star has done a reasonable job so no weed concerns at the moment

Have placed a time lapse camera in each plot but haven't downloaded any images yet - hopefully they should be interesting, also sprayed a 1m sq patch with sport marker paint on the same day as T1 application to asses timing which looks like it was spot on (will post some pics)

Also got farm weather station running and logging so we have some record of the season, we had a bit of rain yesterday but not a lot, more forecast over the next few days though

 

[cornpicker]

Hi All,

The picture below was taken on 7th May, the day the T1 was applied , the picture at the bottom was taken last Friday, now there is further regrowth it clearly shows the timing was spot on with all of leaf 3 covered, leaf 2 has now emerged, the more forward ones even caught some of the T1. Hopefully if the T2 timing is correct we should see the remainder of leaf 2 covered and all of the flag leaf. I am going to have another look today, so will update with another picture with another weeks growth later.

Despite Skyfall being a cleaner variety the disease pressure is very high, and not likely to abate with the current weather forecast so I need to visit to fine tune rates of Librax for T2 application which can't be far away now.

.

 

[Brisel]

View attachment 325474 View attachment 325472
Clive

I popped in the field yesterday and got a few pics. (see above)

With the recent rain and warmer weather the crop has definitely moved on, there’s definitely more Septoria in the crop now. I have to say though, the crop’s a lot cleaner than some fields I’ve been in!

It will be interesting to see how the weather develops over the weeks ahead and as we move into T2, also noting your comments about this being a particularly drought prone site View attachment 325474 .

I saw the post about “AgCelence” plant health!!! I know it was a comment about the branding itself, but if anyone is interested to understand more about the plant health benefits of Xemium, then check out this link.


http://www.agricentre.basf.co.uk/agroportal/uk/en/crop_solutions/cereals_5/xemium/agcelence_plant_health/xemium_insight_with_julie_smith/standard_page_28.html


Julie Smith, plant pathologist at ADAS Rosemaund, has worked extensively with Xemium. She’s just written a summary piece on Xemium’s plant health effects. The section on water use efficiency and stress tolerance is particularly appropriate for the TFF fungicide trial.


More than happy to take any questions about this.


Hope the spraying went OK today.

@Clive - I thought you said you didn't have slugs...

 

[Clive]

@Clive - I thought you said you didn't have slugs...

I really like this idea of painting leaves on application day - really good way to look at timings and what's covered / what's not

Think it's something I'm going to do a lot more

 

[Brisel]

Syngenta have been doing this on trial plots for a couple of years. It doesn't seem to harm the plants but it helps explaining how new growth needs protecting so quickly.

 

[Clive]

Walked the field today - looking like early next week for T2 if we have a weather window

 

[Godber]

Walked the field today - looking like early next week for T2 if we have a weather window

That will be 15/16 days after T1?

 

[Oh bullocks]

That will be 15/16 days after T1?

So what. If the flag is out and unprotected it needs doing. These 21 day intervals are fine but I'd rather go by the crop growth stage in catchy weather periods. Better to be too early than too late.

 

[Jetemp]

Flag leaf needs protection, it's the main yield building leaf, forget dates gaps etc. it needs protection!!

 

[Clive]

That will be 15/16 days after T1?

T1 was 6th may looking at posts above so if we get weather on Monday it will be 16days

however gap / date is irrelevant IMO it's when flag is fully out that matters for timing as paint test shows the flag is currently unprotected and we have rain events that could move septoria from lower leafs to flag

it wants to be on this week IMO

 

[Clive]

Although this thread is all about a comparison of products its actually timing that matters more really

This stuff is expensive and I reckon a lot of it gets seriously compromised by untimely application