East’s corn, soy growers get ‘next-gen’ fungicide ingredient

Already cleared for launch into pulse crops in the West, a “next-generation” fungicide ingredient’s debut in Eastern Canada is expected to be in corn and soybean crops.

BASF Canada said Wednesday it has picked up registration in Eastern Canada for Priaxor fungicide, which combines pyraclostrobin — the Group 11 active ingredient in BASF’s Headline — with the company’s new active ingredient Xemium, for use on corn and soybeans.

Xemium — BASF’s brand for fluxapyroxad, part of the carboxamide family (Group 7) — was already registered last year combined with pyraclostrobin in Priaxor DS, for disease control in field peas, lentils and chickpeas.

Priaxor’s new label for corn covers its use in field corn, sweet corn, seed corn and popping corn crops, for control of common rust, gray leaf spot and northern leaf blight, and for suppression of eye spot, both at 0.3 litres per hectare.

For soybeans, Priaxor is approved for control of Asian soybean rust at an application rate of 0.3 to 0.45 l/ha; for control of frog eye leaf spot and septoria brown spot at 0.24 to 0.3. l/ha; and for suppression of sclerotinia stem rot at 0.45 l/ha.

Xemium “allows growers to control pathogens over a broad range of stages” of fungal growth, BASF field biologist Rob Miller said in a release. The combined actives are expected to inhibit spore germination, mycelial growth and sporulation.

“The main difference with Xemium is its strong mobility characteristics,” he added. “It is able to redistribute itself on the plant and leaf surface to provide more continuous and consistent disease control so it can protect the parts of the plant that were missed during spraying.”

Combined with pyraclostrobin, the company said, Priaxor’s multiple modes of action from Group 7 and 11 give corn and soybean growers “a new tool to be used as part of their fungicide resistance strategy.”

The company in 2010 submitted registration dossiers for Xemium to ag chemical regulatory agencies worldwide, billing it as a “next-generation” carboxamide.

BASF then announced in August last year that it had picked up Canadian registration for Xemium on a list of row crops and horticultural crops.

The new Priaxor label on BASF’s website for Eastern Canada also covers it for control of certain cereal (wheat, barley, rye, triticale) diseases at 0.225 to 0.3 l/ha; and for control of leaf and stem rust in grasses (bluegrasses, fescues, ryegrasses) grown for seed, at the same application rate. –– AGCanada.com Network

Related stories:
‘Next-generation’ fungicide cleared for row crops, Aug. 9, 2012
Pulse-crop fungicide first with new active ingredient, Nov. 23, 2012

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