Fungicide formulation, timing and software. Get all these proper and likelihood is you’ll have efficient suppression of fusarium head blight (FHB) in your winter wheat crop.
Syngenta Canada formulations and purposes supervisor Doug Baumann notes that these three elements of management all must work collectively for growers to attain optimum FHB management. On this episode of RealAgriculture’s Wheat Faculty, Baumann explains that 60 per cent of fungicide efficacy depends on the product formulation, whereas timing accounts for 25 per cent of success, and software 15 per cent.
Any aggressive fungicide has to have the correct lively elements. “That’s desk stakes,” says Baumann. A protracted shelf life is essential, as is comfort and the performance of the product. “When software time comes, quite a lot of acres have to be coated really easy dealing with, pumping and cleanup are all attributes of a extremely good formulation.”
With regards to timing, newer fungicides proceed to develop the applying window. As an alternative of the normal 61 to 63 window on the BBCH (Biologische Bundesanstalt, Bundessortenamt and Chemical business) scale, purposes may be made out of stage 57 to 65. Baumann notes that wheat fungicides like Syngenta’s Miravis Ace have actually stretched the applying window — it may be sprayed as early as 50 per cent head emergence up till 50 per cent of the heads on the principle stems are in flower. (Story continues after the video.)
Utility could solely account for 15 per cent of fungicide success, however that is the place growers and applicators must earn their spurs by successfully portray the 24 wheat heads present in every sq. foot of their wheat crop. For Baumann, software begins with water quantity and droplet dimension. He says 15 gallons per acre is a naked minimal and recommends growers push it to 20 gallons each time potential to get good protection.
Baumann notes that the business has moved towards a coarser droplet as a result of it has a larger capability to penetrate the wheat head. It might probably additionally keep extra momentum, permitting the droplet to higher maintain its spray angle and extra effectively goal the front and back of the wheat head.
Within the video, Baumann additionally discusses the necessity for the correct nozzle and why two angles of assault are required to get good protection. Increase peak and travelling pace of the sprayer are additionally essential for software success. “A bit bit slower and just a little bit decrease,” he stresses.
Click on right here for extra Wheat Faculty movies.