Timely label upgrade for spring

Customers looking for ways to control a range of broadleaf weeds in straight ryegrass, or mixed plantain ryegrass pastures, can now utilise selective herbicide Kamba 750 from Nufarm, thanks to a new label extension approved in July.

Previously Kamba 750 application for these uses was limited to spot spraying, and the change is expected to be welcome news for both resellers and growers as the new growing season gets underway.

Sonja Vreugdenhil, Nufarm technical specialist, says the new claim builds on trial work done by Nufarm to get Kamba 750 approved for use in plantain swards in 2018 and is a good example of the company’s ability to continue adding value to off-patent chemistry.

“This is going to complement a lot of farm systems, and the 14 day grazing withholding period will make it relatively easy for farmers to schedule applications in line with their grazing rotations.

The new use we will see is on existing pure swards of annual ryegrass, if needed, as well as more permanent ryegrass pastures where clover is absent, and can be easily re-sown after if required.

Kamba 750 is very damaging to clover, so it should not be used where clover is present or desired. But the plantback is 28 days, so that gives farmers an option to clean up permanent pasture infested with broadleaf weeds then come back in after a month to sow and re-establish clover seed.”

It can also be used tank-mixed with Crucial glyphosate as part of spring spray-out ahead of sowing brassicas, cereals or new pasture.

Kamba 750 is a Group 4 herbicide, and contains 750 grams per litre dicamba, the only formulation with this concentration of active ingredient available in New Zealand.

It controls or suppresses many common broadleaf weeds, annual, biennial and perennial, including Californian thistle, bindweed, fathen and dock; and is also approved for use in maize, cereals, turf, kale, linseed and oilseed rape.