Phoma control

[Bruce Almighty]

Most of our rape looks like it should make it, I'd rather it was more advanced, but to be expected this year
Agronomist has recommended Proline, Boron & Hallmark
My concern is that a lot of the stubble will be getting sprayed & are we wasting money ?
The variety is Elgar sown at 2kg/ac early September
Last year's rape did 1.75 t/ac & 2018 did 1.6 so it's been worthwhile in the past

 

[Heathland]

Sprayed mine last week,but only the crops that I thought are viable...........and I could safely travel on.
Very similar size to your crops and you could easily find Phoma lesions.

 

[B'o'B]

What is your agronomist hoping to achieve with the Hallmark?

 

[Bruce Almighty]

What is your agronomist hoping to achieve with the Hallmark?

More flea beetle control

 

[B'o'B]

More flea beetle control

How many previous applications?

 

[Bruce Almighty]

How many previous applications?

2 but not with Hallmark

 

[B'o'B]

2 but not with Hallmark

Even if not Hallmark the mode of action will be the same. It may make you feel like your doing something by putting it in, but it will be a waste of money.

 

[Gong Farmer]

Don't like arguing with agronomist's recommendations (unless the Proline was Kestrel, of course ) but that crop is past any threat from flea beetle now.

 

[AndrewB]

What is your agronomist hoping to achieve with the Hallmark?

Stem weevil maybe, once you notice it in spring it’s too late!

 

[Brisel]

Phoma levels well above threshold here. If I can get spraying weather I'll do Proline + Astrokerb which will tide the crop over until I can get frosts for charlock control with Fox.

The trouble with insecticides at this time of year is you've got to be perfect with the timing to catch the larvae as they hatch and crawl towards the leaf petioles. Any later than that and you're just wasting chemical. the TuYV carrying myzus aphids are resistant to pyrethroids.