OSR frost kill

[casemx 270]

Got quite a bit of frost kill on winter OSR . There is new growth appearing from just above the soil will this new growth actually make a crop ? The whole crop had N and sulphur two weeks ago and the good plants are growing rapidly . Thanks

 

[Flatlander]

Seen that here in Canada on spring canola. It grew back fine but was later maturing. Being this early into the growing season I doubt you’ll even notice it in June.

 

[Green oak]

Got quite a bit of frost kill on winter OSR . There is new growth appearing from just above the soil will this new growth actually make a crop ? The whole crop had N and sulphur two weeks ago and the good plants are growing rapidly . Thanks

Do you think that’s frost kill. there was great looking oil seed rape in the autumn going backward at alarming rate around north Essex. Due to csfb.

 

[serri]

Got quite a bit of frost kill on winter OSR . There is new growth appearing from just above the soil will this new growth actually make a crop ? The whole crop had N and sulphur two weeks ago and the good plants are growing rapidly .

Looks more like csfb lavae damage to me as well as frost damage, can see plenty of lavae activity on the leaf stalks. Had some look similar a few years back ,never really got going, ended up doing half ton acre.

 

[ollie989898]

I too would be wary that the crop going backwards wasn't due to CSFB. All crops of OSR that don't look quite right by this time of year or which seem to be going backwards should carry a strong suspicion of CSFB activity.

 

[Brisel]

Check that the plants aren’t in fact infested with Winter Stem Weevil, not CSFB.

 

[Green oak]

To be fair Obviously there’s not a lot going for the crop going forward . But when my rape really started going backwards is when the astro kerb was applied. It was like I applied acid to the leaf.

 

[T Hectares]

I have winter kill, definitely not Larvae or stem weevil
I’ve had some beans hit too, first time I’ve seen both crops hit so hard
There was plenty of talk of crops being hit at our field day this week @Brisel

 

[Laggard]

To be fair Obviously there’s not a lot going for the crop going forward . But when my rape really started going backwards is when the astro kerb was applied. It was like I applied acid to the leaf.

Same here.

 

[Flat 10]

Check that the plants aren’t in fact infested with Winter Stem Weevil, not CSFB.

Will that make much practical difference?

 

[Brisel]

Will that make much practical difference?

Not really. Whilst I’m not defending flea beetle, the little buggers get the blame for more than their fair share.

 

[ajd132]

Crops around here look terrible now despairing looking amazing in the autumn. I think it’s a mixture of all the aforementioned and pigeons. Also looks like some have completely nuked some rape with liquid fertiliser.

 

[casemx 270]

I have looked can find some of the csfb larvae but think it's a combination but definitely some frost damage

 

[Laggard]

If you’ve paid the BSPB plant breeders royalty and the crop fails, can you reclaim it?

 

[fieldfarmer]

If you’ve paid the BSPB plant breeders royalty and the crop fails, can you reclaim it?

Nope,

 

[yellow belly]

Got quite a bit of frost kill on winter OSR . There is new growth appearing from just above the soil will this new growth actually make a crop ? The whole crop had N and sulphur two weeks ago and the good plants are growing rapidly . Thanks

in the 1990s one very cold march it did not start growing till april

 

[Try to succeed]

My most forward crops are worst hit by the same symptoms. There’s is obvious frost damage in leaf petioles from a few csfb larvae. However if you slice some plants in half, the heart and root have mush, with no signs of any larvae. Neighbouring fields of same variety and treatment are then strangely untouched
Someone suggested boron deficiency?

 

[Try to succeed]

Worth mentioning the above crops in question were filling the rows out a couple of months ago

 

[richard hammond]

Check that the plants aren’t in fact infested with Winter Stem Weevil, not CSFB.

Winter Stem Weevil can be found easily in lots of crops,

 

[casemx 270]

My most forward crops are worst hit by the same symptoms. There’s is obvious frost damage in leaf petioles from a few csfb larvae. However if you slice some plants in half, the heart and root have mush, with no signs of any larvae. Neighbouring fields of same variety and treatment are then strangely untouched
Someone suggested boron deficiency?
View attachment 1095692

Ours looks very similar to this but then a load of plants a fine