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Bayer continues to focus on creating innovative crop solutions to help famers control existing crop threats, get ahead of emerging ones and ensure we are offering a diverse set of products, from Seed to Harvest.
From seed to harvest, Bayer is your trusted source for whole farm, tailored crop solutions.
If you’ve got questions, we’ve got answers. It’s everything you need to know, all in one quick, easy to access place.
Find out how to get the most out of your crop and the most out of your money.
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Reason® fungicide provides disease protection in many crops including potatoes, bulb vegetables, brassica leafy vegetables, carrots, cucurbits, spinach, tomato and turnip green. When applied in a foliar application and mixed with a contact fungicide like Dithane™ DG or Bravo® 500, Reason provides early and late blight protection in potatoes and tomatoes, downy mildew control in many vegetables and cavity spot control for carrots. Its local systemic activity protects new growth and its translaminar movement protects both sides of the leaf.
Reason can also be used as a potato seed-piece treatment when seed-borne late blight is a threat. Applied as is or in a tank-mix, it gives you the highest level of disease and insect protection available from a seed-piece treatment program.
Labels and MSDS
Reason Fact Sheet
Reason 500 SC Label
Reason 500 SC MSDS
Alternate with fungicides having a different mode of action other than Group 11 every 7 to 10 days after each application of Reason fungicide.
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