Minor use registrations added to Quadris fungicide label

Syngenta Canada Inc. is pleased to announce that Quadris® fungicide (active ingredient: azoxystrobin) has received Minor Use Registration for suppression of Alternaria leaf spot (Alternaria brassicae) on cabbage, suppression of blossom blight (Ascochyta spp. and Alternaria spp.) on cumin and suppression of black root rot (Rhizoctonia fragariae) on strawberries

"These minor use registrations were added to the Quadris label at the request of Canadian growers who face challenges with certain diseases and want the protection that Quadris has to offer,” stated Eric Phillips, Asset Lead, Fungicides and Insecticides for Syngenta Canada Inc.

Quadris is a broad-spectrum, preventative fungicide with systemic properties. Optimum disease control is obtained when Quadris is used as a protective treatment prior to disease establishment

Cabbage

Alternaria leaf spot can cause losses from spotting lesions on the heads of cabbage, reducing yields and increasing the number of unmarketable heads. Symptoms appear first on the older leaves as small yellowish lesions that expand to resemble a target with concentric light and dark areas. Alternaria leaf spot can quickly spread from the leaves to the heads, with the lesions ranging in size from pinpoint to several centimeters in width.

Cumin

Blossom blight infected plants show minute, brownish necrotic spots, which later turn a shade of black. Diseased plants fail to produce seeds. If seeds are produced, they remain shriveled, light in weight and dark in color.

Strawberries

Black root rot on strawberries is a very complex and serious disease. It affects primary feeder and perennial roots of the strawberries. Often symptoms are not evident until a year or two after planting. Infected roots develop black lesions on the surface that eventually extend into the interior tissue, resulting in the entire root becoming black and rotted through. Infected plants typically appear wilted and stunted, particularly around fruiting time when there is greater demand on the roots for water and nutrients. As a result, less fruit is produced from the infected plants. Additionally, plants with black root rot are susceptible to secondary pathogen infections and can be at higher risk of winter injury. Management of black root rot begins with disease avoidance and keeping plants healthy and vigorous from transplanting through to harvest.

"We continue to listen to our customers and work with them and government agencies to pursue registrations for those smaller crops that are sometimes overlooked yet still need to be protected from disease if they are to provide returns to the producers,” concluded Phillips.