Junction fungicide/bactericide is extremely versatile, providing excellent control of a broad-spectrum of fungal and bacterial pathogens.

The two active ingredients, mancozeb and copper hydroxide work together to deliver maximum plant protection.  Junction is available in water-soluble packets, making it easy-to-handle, mix, and apply.

Active on 11 pathogens and mass, this powerful combination provides excellent control of many of the most difficult to manage ornamental diseases both in the nursery and landscape. 


  • Superior formulation
  • Low risk of resistance
  • Broad-spectrum disease control
  • Very fine particle size
  • Gradual moss control
  • Outstanding algae control


  • Easy-to-handle and easy on spray equipment
  • Great tool to incorporate into any IPM program
  • Eliminate multiple diseases as well as algae utilizing a single product
  • Maximizes leaf surface coverage for increased plant protection
  • Prevents turf voids from rapid moss control
  • Disease, algae and moss control in one

Click to enlarge.

Diseases Controlled

Junction controls a broad-spectrum of fungal and bacterial pathogens of ornamentals.

Fungal Pathogens

  • Alternaria
  • Anthracnose
  • Black Spot
  • Botrytis Blight
  • Cercospora Leaf Spot
  • Dothistroma Needle Blight
  • Downy Mildew
  • Leaf Spot
  • Needle and Twig Blights
  • Needle Cast
  • Phytophthrora Blight
  • Powdery Mildew
  • Rust
  • Scab

Bacterial Pathogens

  • Xanthomonas spp.
  • Pseudomonas spp.
  • Bacterial Blight
  • Erwinia spp.
  • Fireblight







Labeled plants:  Arborvitae, Azalea, Banana, Begonia, Camellia, Carnation, Chrysanthemum, Dahlia, Dogwood, Easter Lily, Elm, Euonymus, Geranium, Gladiolus, Indian Hawthorn, Juniper (Easter Red Cedar), Magnolia, Oak (Laurel), Pachysandra, Pansy, Pear, Peony, Photinia, Pyracantha, Rhododendron, Rose, Tulip, Viburnum, Walnut, Zinnia, and others.

Active ingredient:  Mancozeb & Copper Hydroxide

Suggested use:  Apply a thorough coverage spray at 1.5 to 3.5 pounds per 100 gallons. Begin at the first sign of disease and spray on a 7 - 14 day interval.

Where to buy:  To purchase Junction Fungicide/Bactericide, contact your SePRO Technical Specialist or distributor.  May not be registered in all states.  Always read and follow label directions.

Learn Tips for Protecting Nursery Crops from Dr. Ann Chase:

Controlling Nursery Diseases