Spring barley with Austral plus

[Laggard]

Going to drill some spring barley after sugar beet. Is it worth having it dressed with Austral plus for wheat bulb fly? Also what do people think of RGT Planet?

 

[Brisel]

Planet is a good variety, easily marketable around here as there's good export demand. Brewing only. Not sensitive to nitrogen so I'm putting 150 kg/ha N on and it's comfortably under 1.85 N.

When are you drilling it? Egg hatch is late January/early Feb so if you're sowing it now it will have run out of protection by then. Does barley suffer from WBF? @Woodlander ?

 

[Woodlander]

Planet is a good variety, easily marketable around here as there's good export demand. Brewing only. Not sensitive to nitrogen so I'm putting 150 kg/ha N on and it's comfortably under 1.85 N.

When are you drilling it? Egg hatch is late January/early Feb so if you're sowing it now it will have run out of protection by then. Does barley suffer from WBF? @Woodlander ?

Yes - both wheat and barley are susceptible to WBF. I've always said that Mid Nov is the earliest that it's worth using Austral plus for WBF control - it gives around 6 weeks protection. The seed treatment is the only chemical option now, so if there is a WBF problem in Jan/Feb you only have cultural options - rolling, early N...

@Laggard - what was the beet crop like - higher risk of WBF if it was gappy, the adults laying eggs on bare soil in July/August.

I'm pretty sure AHDB have come out and said that this will be a low pressure year for WBF

Have grown Planet here for two seasons as a seed crop. Two very different seasons, where I think it performed well under the circumstances.

Hope this helps

 

[Woodlander]

https://ahdb.org.uk/news/wheat-bulb-fly-pressure-stays-low-in-2018

 

[Laggard]

Beet crop had good ground coverage. Good to hear WBF pressure is low. Not planning on drilling until March most probably as land quite heavy.

 

[Hindsight]

You could sample and assessed the field for WBF. Then you will have a better idea of background risk. But if not sowing until March doubtful crop will be at risk - sowing past the egg hatch period.

 

[Flat 10]

I’ve drilled SB in late Feb after beet and had quite bad WBF. Don’t dress for it though but now more inclined to roll and leave it a bit later to drill.