Dithane® M-45 fungicide

Dithane® M-45 fungicide  

Active Ingredient: mancozeb, a coordination product of zinc ion and manganese ethylene bisdithiocarbamate

Profile: Dithane® M-45 fungicide is a high quality mancozeb contact fungicide with broad registrations on more than 30 vegetable, fruit, field, vine and specialty crops. The product provides broad spectrum activity with no resistance problems. Used for outdoor and greenhouse-grown crops.


  • Dithane has been used successfully for more than 30 years on a wide range of crops
  • Provides broad spectrum activity with no resistance issues
  • Excellent tank-mix partner for disease resistance management
  • Less costly than Bravo
  • High margins of crop safety
  • Low persistence in the environment and no leaching potential

Application Timing: 
Applications are often made on 7 to 10 day schedules. On some crops such as apples, Dithane M-45 is used in a preventive program throughout the season with sprays beginning prebloom. Preventive programs are also initiated early on crops such as tomatoes (when seedlings emerge or after transplanting), potatoes (when plants are 4 to 6 inches high) and watermelons (when plants are in 2 leaf stage).

For more information on this product, see its label and/or safety data sheet.