Last year Dow AgroSciences launched the first new active ingredient for broad-leaved weed control in cereal crops in two decades. Pixxaro EC is based on the company’s new active ingredient, Arylex (halauxifen-methyl), and fluroxpyr, which is already deployed in Starane.
The product is now available to growers for use in winter and spring cereal crops, except oats.
Winter cereals can be treated from three leaves from 1 February and spring cereals from 1 March, right up to GS45.
The company’s cereals herbicide specialist, Stuart Jackson, says the product’s key USP is flexibility, providing reliable control of cleavers, cranesbill, poppy, dead nettles, fumitory and chickweed in cold, damp or warm conditions.
“Pixarro is not just another synthetic auxin-based (hormone) herbicide,” he said. “It has a unique binding site enabling it to work reliably during poor growing conditions.
“Growers who want to get on with spring weed control early can spray in cold conditions and allow Pixxaro to sit in the plant until it starts to grow without any degradation,” Mr Jackson said.
“It has excellent compatibility with a range of fungicides, grass weed killers and PGRs, meaning that it can tank mix well with other applications later in the season.”
Typical dose rates are low at just 0.5L/ha, but Mr Jackson recommends a tailored approach from agronomists and growers to tackle the issues specific to the farm.
Growers who didn’t apply a residual herbicide, or have found the application to be ineffective, may have pansies and large speedwells to control.
“Mixing Pixxaro and 75ml/ha of DFF in cool, moist conditions early on would get a complete job,” he said.
Alternatively, a tank mix with a picolinafen-based product such as Picona at 2.0l/ha is extremely effective.
Mid-season, mixing 0.375l/ha Pixxaro and an SU at half rate, or a dicamba-based product such as High Load Mircam at 1l/ha will cover a wide spectrum of weeds.
“In trials, Pixxaro has shown to be a real cleaver killer, delivering better control than all other products in the market,” Mr Jackson added.
“The simplest and most reliable way is mixing 0.25L/ha Pixxaro with T1 or T2 fungicides to take out this competitive weed with visible results by the time the sprayer is leaving the field.”
For optimum performance during tough conditions, Mr Jackson advises growers to mix in an adjuvant.
The non-ALS mode of action is also likely to appeal to growers with poppy and chickweed with suspected or confirmed resistance to sulfonylurea products.
There are no specific requirements restricting nozzle choices or water volumes, and growers have a full range of following crop options, with the exception of small seeded legumes. The product also has a 5m reducible buffer zone.
Original article in CPM.