In conjunction with Bayer we will be keeping track of winter wheat crop development this season as emergence is likely to be variable following the challenging conditions.
All varieties regardless of drilling date are now beyond full flag leaf emergence at Hinton Waldrist, and the anthers are emerging on October sown fast developers like Skyfall, Extase and Graham.
For site manager Ben Giles he cannot recall a season recently where the anthers have been out so soon after T2 application at Hinton Waldrist.
It has taken him a little by surprise and he wonders if plant stress has been a factor in the race to flower and then start grain fill.
But whatever the reason it doesn’t change the situation for growers, the time between GS39 and GS63-65.
Where the target is foliar top up, Mr Giles says it isn’t a critical issue, as there is more timing flexibility.
Indeed, with low disease pressure at the moment he questions whether growers need to spray at all unless covering a late brown rust infection.
“As you’re not specifically targeting the ear you can time the application for when the T2 spray might be running out of steam. This is likely to be around 2 – 3 weeks after it went on, depending on what was used.”
But for those wanting a safeguard against fusarium and mycotoxins he says timing is everything with such a narrow window. “You have to spray at the first sign of anthers emerging from the middle of the ear. Miss that and fusarium protection can be compromised.”