Spray Topping Barley Grass. We’ve listed some practical tips to combat Barley Grass LATE SPRING & SUMMER Identify areas of infestation in spring Stop these areas seeding by grazing hard then spray with Glyphosate 450 (200ml/ha Glyphosate can be useful) In areas identified for Barley Grass control spray again with Glyphosate 2L/ha over summer if your pastures are green.
“Weed control is a serious issue for Australian grain growers with herbicide resistance reducing the available options the very best time to stop weeds is before they get started so spray topping late season weeds particularly ryegrass before they set seed is a major benefit for subsequent crops” he said.
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Spraytopping with paraquat is used to control problem grass weeds such as barley grass (Hordeum glaucum and H leporinum) and annual ryegrass (Lolium rigidum) La pulverización de cobertura con paraquat se utiliza para controlar las malas hierbas gramíneas problemáticas como la cebada (Hordeum glaucum y H leporinum) y el ryegrass anual (Lolium rigidum).
How do you get rid of barley grass? AskingLot.com
Diquat is the only registered product for croptopping barley however it is important to check with the maltsters before spraying as some impose restrictions on croptopping Effective croptopping can however be as good as a break or fallow.
Herbicides Syngenta
Spray with a calibrated boom spray raised to give double overlap at the level of the seed heads Refer to Adjuvant section under General Instructions Weeds Controlled Barley grass State 280 mL plus adjuvant Critical Comments Manage paddocks as above Spray after head emergence but when all seed heads are green and there is no sign of haying off.
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Spray topping Spray topping is the use of a nonselective herbicide at a lower than usual concentration to basically severely wound the grass and prevent it forming proper seeds The application is strong enough to reduce the amount of seeds but weak enough that the grasses surrounding the barley grass (that you want to keep) are not killed off totally.