Skip to main content
Customize by ZIP Code

User account menu

  • HELP CENTER
  • Log in
Menu Search
Home Home
Ortho

Main Navigation (US)

  • Bugs

    • Products

    • Essential Oils

    • Tips & Solutions

    • Featured Products

      Ortho® BugClear™ Insect Killer for Lawns & Landscapes Ready-to-Spray Front
      Ortho® BugClear™ Insect Killer for Lawns & Landscapes Ready-to-Spray
      Ortho® Home Defense® Max Indoor Insect Barrier with Extended Reach Comfort Wand® Front
      Ortho® Home Defense Max® Indoor Insect Barrier with Extended Reach Comfort Wand®
    • Featured Articles

      House fly sitting on a table.
      How to Get Rid of Bugs Indoors
      Modern kitchen with white cabinets and an ant infestation.
      How to Get Rid of Ants in the Kitchen
  • Garden

    • Products

    • Tips & Solutions

    • Featured Products

      Ortho® Dial N Spray® Hose End Sprayer
      Ortho® Dial N Spray® Hose End Sprayer
      Front of package
      Ortho® MAX® Garden Disease Control Concentrate
    • Featured Articles

      Yellow Lady Bug on Leaf
      Vegetable Garden Pests
      Large spider on a spider-web.
      The Benefits of Spiders in the Garden
  • Weeds

    • Products

    • Tips & Solutions

    • Featured Products

      Ortho® GroundClear® Super Weed & Grass Killer1
      Ortho® GroundClear® Super Weed & Grass Killer<sub>1</sub>
      Front of packaging
      Ortho® WeedClear™ Lawn Weed Killer Ready-to-Use with Comfort Wand
    • Featured Articles

      Dandelions growing in a field.
      Dandelions
      Landscape with mulch, pink flowers, grass, and a hardscape.
      6 Tips for a Weed-Free Landscape
  • Pollinator Promise

  • Purpose

  • Help Center

Search

Free shipping on all orders over $35!

weed control ortho

Plant Diseases

Plant Rust Disease - Identification & Control

Rust diseases produce raised pustules that rupture to release powdery, orange to red-colored spores on the underside of affected leaves. Light yellow spots can be seen on the upper leaf surface.

Plant Rust Disease - Identification & Control

Description

Leaf rust is a disease that attacks garden plants in wet, humid conditions. It is common on roses, snapdragons, hollyhocks, crabapples, and daylilies. 

Rust diseases produce raised pustules that rupture to release powdery, orange to red-colored spores on the underside of affected leaves. Light yellow spots can be seen on the upper leaf surface directly opposite the rust pustule on the bottom side of the leaf.

What To Do and Helpful Tips

  • Wet plant leaves encourage many fungal diseases, including rust. Apply water directly to the root, like with a soaker hose, to help prevent the disease, or water in the early morning so the leaves will dry quickly during the day.
     
  • Remove and destroy any infected plants to prevent the spores from spreading. Do not compost diseased plant material.
     
  • Select rust-resistant plant varieties and space the plants in the garden as recommended. Good air flow can help prevent many common garden diseases.
Main product image
Ortho® Rose & Flower Disease Control Concentrate
Learn More
Main image of product
Ortho® Tree & Shrub Fruit Tree Spray
Learn More
Front of package
Ortho® MAX® Garden Disease Control Concentrate
Learn More
2022-08-18
2022-08-18
Ortho
135
81
/en-us/library/plant-diseases/plant-rust-disease-identification-control
https://www.ortho.com/sites/g/files/oydgjc116/files/styles/large/public/asset_images/Rust_0.png?itok=njOa8O0x
STILL NEED HELP?
TWEET US
LIVE CHAT
EMAIL US

Home

© 2022 The Scotts Company LLC. World rights reserved.

Ortho Family

  • Careers
  • Our Brands
  • Scotts Miracle-Gro

Resources

  • Check Order Status
  • Return Policy
  • Conditions of Use
  • Privacy Notice
  • About Cookies
  • About Interest Based Ads
  • Do Not Sell My Personal Information
  • Contact Us
  • Investor Relations
  • Site Map
  • Responsible Bug Disclosure Program

Connect

  • Twitter
  • YouTube

Footer menu

  • Privacy
  • Terms & Conditions
  • Contact Us
  • Site Map
  • The Scotts Miracle-Gro Company
  • Our Brands
  • Investor Relations
  • Careers