Rye Take All

[Digester Man]

Has anyone seen take all in Rye? We have been growing it for 5 years and now see it in our crop as confirmed by the lab report below. The history of one block of ground is as follows:

Up to 2015 Permanent Grassland
2016 Winter Rye
2017 Winter Rye
2018 Spring Triticale - take all observed
2019 Winter Oats
2020 Winter Rye - take all observed

This land isn’t really suitable for maize or potatoes, so it’s hard to get a good rotation. It’s a bit far away from the yard to go back into grass for silage.

So can anyone tell us, if we grow continuous rye, can we hope for take all decline like some of the continuous wheat growers have achieved? In practice what should we expect to happen?

KWS have told us that take all hasn’t been an issue in GB. On the take all scale, oats are zero, rye is five, whereas wheat and barley are something like 60+. I find it hard to believe that we can be the first so thought I would ask the farming forum if anyone has much experience with this disease and how to mitigate it.

 

[robbie]

Looking at your rotation above where your seeing take all is typical of cereal take all.id say if you continue in the next couple of years you should see the decline.

 

[Gong Farmer]

We did HGCA funded trials on take-all in triticale many years ago. Levels were 25-30% those in wheat, but then the wheat component of triticale will have allowed much of this so rye should be much lower.

 

[Barry]

As your post states Rye can get take all but is somewhat more "resistant" than wheat. To reduce the impact in the future I think you are going to need to introduce a break crop of some sort. Particularly as all of your back cropping can act as a host for the disease.

I have not come across anyone trying to achieve take all decline in Rye and it may be that an alternative would be to look at using Latitude on part or all of the field. But currently there is no recommendation for it. I believe a few years ago there was an EAMU (Extension of Authorisation for Minor Use) to allow its use on Rye but I don't think that is still in operation. Without an EAMU a merchant could not apply it. It may be possible for the manufacturer to apply for a new one.

 

[AndrewM]

Won't you get ergot problems in continuous rye?

 

[Al R]

Won't you get ergot problems in continuous rye?

It’s for AD

@Rob_AD could it have been more drought related in the dry spring as opposed to actual take all? Circles of it or whole fields?

 

[Digester Man]

It’s for AD

@Rob_AD could it have been more drought related in the dry spring as opposed to actual take all? Circles of it or whole fields?

Unfortunately Lab confirmed its Take All. Widespread across a 40 acre field. Getting it in most of our whole crop cereal ground now in both rye and triticale

 

[Barry]

I have checked and there is still an EAMU for the application of latitude on Rye, it was renewed in 2019.