New Oomycete-specific Fungicide from Syngenta

Micora™, a new fungicide from Syngenta, is now registered for use on greenhouse and outdoor ornamentals and vegetable transplants to be sold to retail consumers. Micora™ contains the active ingredient mandipropamid (a carboxylic acid amide), which is specific for the downy mildews and Phytophthora, and may be applied either as a foliar spray or a soil drench. Please read the label before using.

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About Don Ferrin

I am an associate professor and extension specialist in the Department of Plant Patholgy & Crop Physiology with the LSU AgCenter in Baton Rouge. I have statewide responsibility for issues and educational programs related to diseases of all horticultural crops in Louisiana.
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2 Responses to New Oomycete-specific Fungicide from Syngenta

  1. Gerard Ballanco says:

    Is there anything special about its protection against downy mildew? I usually don’t have trouble with Phythopthora until the plants have been in the garden long enough for me to not recognize that they are staying too wet. how long does the protection last if applied to a 4 leaf stage vegetable seedling?

    • Don Ferrin says:

      Since this fungicide is only labeled for use as a foliar spray on a 7- to 10-day schedule on vegetable transplants during production, I doubt you would get more than a couple of weeks protection from an application. Once applied, the fungicide binds to the cuticle of the leaf and is not moved systemically, so new growth would not be protected. The same active ingredient is available for use on field-grown vegetables and is sold as Revus©.

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