Failed Oilseed rape Crops?

[Cross farmer]

Just wondering if anyone's oil seed rape crop has failed or produced a poor yield due to Brassica Cyst Nematode rather than Cabbage Stem Flea Beetle?

 

[Clive]

Just wondering if anyone's oil seed rape crop has failed or produced a poor yield due to Brassica Cyst Nematode rather than Cabbage Stem Flea Beetle?

everything gets blamed on CSFB regardless - many people seem to have even forgotten about slugs

 

[snarling bee]

Just wondering if anyone's oil seed rape crop has failed or produced a poor yield due to Brassica Cyst Nematode rather than Cabbage Stem Flea Beetle?

Or even cabbage root fly on early drilled osr

 

[Brisel]

Lots of winter stem weevil in Dorset last winter too. CSFB got all the blame for that.

 

[Northdowns Martin]

Snails have had a good go at ours. Get many on the chalk

 

[Flat 10]

Just wondering if anyone's oil seed rape crop has failed or produced a poor yield due to Brassica Cyst Nematode rather than Cabbage Stem Flea Beetle?

Never heard of it....enlighten us

 

[Cross farmer]

Never heard of it....enlighten us

Some years ago our agronomist at the time noticed that a particular field of Oilseed rape looked very poor and suggested that Brassica Cyst Nematode could be the problem. Soil was tested and numbers were high so we didn't grow Osr in that particular field for about 12 years after sampling the soil again. Result a very good crop of Oilseed rape, although it was a good OSR year. it certainly did better than our other fields and we've never had a tight rotation. I have no idea about the biology of Brassica Cyst Nematode but they are a nemotode which causes trouble with Brassicas. I have looked back at my file and the proper name is Heterodera Cruciferae. Hope that helps.

 

[Flat 10]

Some years ago our agronomist at the time noticed that a particular field of Oilseed rape looked very poor and suggested that Brassica Cyst Nematode could be the problem. Soil was tested and numbers were high so we didn't grow Osr in that particular field for about 12 years after sampling the soil again. Result a very good crop of Oilseed rape, although it was a good OSR year. it certainly did better than our other fields and we've never had a tight rotation. I have no idea about the biology of Brassica Cyst Nematode but they are a nemotode which causes trouble with Brassicas. I have looked back at my file and the proper name is Heterodera Cruciferae. Hope that helps.

Can you see it on the roots with the naked eye? Thanks for this , all interesting.

 

[Elliott]

We have had some soil test results come back with high number of brassica cyst nematode. Rape last year was very poor. Csfb got the blame. The area has grown a lot of cauliflower historically though not any more.
Are there cover crops that are good for the reduction in brassica nematode numbers? Seems to be lots advertised for Beet cyst nematode.

 

[solo]

I had nematode issues a couple of years ago and have found layer manure to be the best response so far. I haven’t tried osr since on the field. I’ve stuck with spring barley for now to try and reduce numbers and by making their habitat less habitable with the layer manure. Here’s a link to my thread although it seems a different variant to yours.

Nematodes

This field is a light sandy soil with some gravel. I have managed the field for the last 18 years without major issues. Prior to this it was in rotation of spring barley, rye and sugar beet. The rotation since has been winter osr, winter wheat, (winter wheat or spring barley), spring barley...

thefarmingforum.co.uk

 

[Bogweevil]

Can you see it on the roots with the naked eye? Thanks for this , all interesting.

Yes, little lemon shaped cysts like PCN, tho' I have never seen it - useful reminder to look harder in future when stunting observed.

More from AHDB: https://ahdb.org.uk/integrated-management-of-cyst-nematodes-in-oilseed-rape