Carrot Country

Chemical Update

Carrot Country
Summer 2006

Ridomil Gold® Bravo® SC Now Available for Use on Carrots and Other Vegetables
Ridomil Gold® Bravo® SC fungicide has received federal approval from the U.S. Environmental Protection Agency (EPA) for use on carrots and vegetables, including tomatoes, potatoes, cabbage, cauliflower, broccoli, cucurbits, onions, garlic and potatoes. This latest addition to Syngenta’s vegetable and potato fungicide portfolio provides growers with a new, user friendly liquid premix formulation of Ridomil Gold® Bravo® with an optimized ratio of the active ingredients chlorothalonil and mefenoxam to maximize disease control.

Bravo, containing the active ingredient chlorothalonil, is a broad-spectrum protectant fungicide that controls many diseases. Ridomil Gold, a systemic fungicide containing the active ingredient mefenoxam, provides control of downy mildew and late blight diseases in certain crops. Applied to labeled crops as a foliar spray by irrigation, air or ground, Ridomil Gold Bravo SC moves throughout the plant to protect foliar surfaces, thereby preventing disease infection before it starts.

“This new, innovative soluble concentrate formulation continues the Ridomil Gold Bravo tradition by providing growers with outstanding disease control, convenience, user-friendly formulations and a better value,” said David Laird, Syngenta Crop Protection fungicide brand manager. In addition to exceptional disease control, Ridomil Gold Bravo SC provides growers with a shorter pre-harvest interval for green onions and tomatoes, improved rotational crop restrictions and reduced Personal Protective Equipment (PPE) regulations.

“The formulation of Ridomil Gold Bravo SC reduces the chlorothalonil load in the product makeup while maintaining the mefenoxam level, providing more efficient disease control to meet growers’ needs,” Laird said. “With Ridomil Gold Bravo SC, less active ingredient is needed to get the job done, reducing environmental loading while increasing growers’ bottom line.”

Under severe disease conditions, Bravo® Weatherstik® may be added to Ridomil Gold Bravo SC to provide maximum control of diseases such as Alternaria, Anthracnose, Cercospora, black mold, gray mold and Rhizoctonia fruit rot. See the product label for more information regarding the addition of Bravo WeatherStik to Ridomil Gold Bravo SC.

As a result of the EPA’s approval of the federal label, Syngenta is in the process of obtaining necessary state registrations in Florida, California, New York, New Jersey, Colorado, South Dakota, Washington, Connecticut, Massachusetts and Hawaii.

For more information about Ridomil Gold Bravo SC, contact your local Syngenta sales representative or visit Syngenta at www.syngentacropprotection.com or www.farmassist.com.

New Carrot Fungicide Announced
Amistar Top, a new Alternaria and powdery mildew fungicide for use in carrots, has been given UK approval.

Manufacturered by Syngenta, Amistar Top contains azoxystrobin and difenoconazole and is being recommended at 1.0litre/ha, equivalent to 0.8litres/ha of Amistar and 125g/ha of difenoconazole.

Difenoconazole is a completely new fungicide for UK carrot growers, according to Syngenta’s Jon Ogborn. To give persistent broad-spectrum protection, trial feedback suggests that growers will achieve the best Alternaria control by starting the fungicide program with Amistar Top at the onset of canopy development.

A second application towards the end of the fungicide program would protect from disease infection and provide valuable green-leaf extension, he added, noting that interspersing the program with a non-strobilurin fungicide would provide strong protection against powdery mildew as well as Alternaria and yield threatening Cercospora.