Cereal fungicide/pesticide combo approved on oats

Revised, April 26 –– A combination of two seed treatments against wheat and barley diseases and an insecticide to suppress wireworm in those crops can now also be used to protect oats, starting this spring.

Syngenta Crop Protection Canada last week announced the expanded label for its seed treatment Cruiser Maxx Cereals, which combines its insecticide Cruiser and fungicide Dividend XL RTA.

The product is billed as providing “early-season suppression” of wireworm, suppression of common root rot and control of diseases including seed rot caused by fusarium, pythium, penicillium and aspergillus; seedling blight caused by seed- and soil-borne fusarium; damping-off caused by pythium; loose smut; and covered smut.

The new labelled rate for use on oats is 325 millilitres per 100 kilograms of seed, the same as for wheat and barley, the company said.

Cruiser Maxx Cereals’s active ingredients include thiamethoxam insecticide, which Syngenta already markets in its Cruiser and Actara brands; difenoconazole, an active in Dividend; and metalaxyl-m, an active in Syngenta brands such as Apron and Helix as well as Dividend.

No pump

For growers in Western Canada, Syngenta noted, Health Canada’s Pest Management Regulatory Agency (PMRA) has now also lifted the “closed system” requirement for Cruiser Maxx Cereals.

The removal of that requirement cuts out the need for a pump to be used when extracting the product, which in the West “will be of particular value to growers treating on-farm,” Paul Allen, seed care brand manager for Syngenta Canada, said in a release.

In Eastern Canada, however, the PMRA still requires Cruiser Maxx Cereals sold in the East to be handled in a closed system — which means closed mixing, loading, calibrating and treatment equipment — and to be applied only by trained commercial seed treaters.

That’s because in the East, the Cruiser Maxx Cereals formulation includes more thiamethoxam insecticide, at a rate of 30 grams of active ingredient (gai) per 100 kg of seed, compared to 10 grams in the formulation sold in the West.

The higher rate of thiamethoxam is needed in the Ontario market for the product to control European chafer, a “pervasive” pest not considered an issue in the West, the company said.

CORRECTION/CLARIFICATION: A version of this article that was published on this site last week — and has since been deleted — did not mention that the “closed system” requirement for Cruiser Maxx Cereals in fact still stands in Eastern Canada. The deleted article also incorrectly stated that the lifting of the “closed system” requirement now allowed growers to treat seed on-farm, when in fact growers in the West were previously allowed to treat on-farm, but with a closed system. We regret the error.

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