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Flower Diseases

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Updated: February 24, 2023

IPM - Prevent, Identify, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland using IPM
no lawn landscape
Updated: June 25, 2024

Aster Yellows Disease on Flowers

If you see gnarly looking growths on asters, coneflowers, or similar species, the plant probably has aster yellows.
purple coneflowers have green petals and they are stunted - growing abnormally - this is caused by aster yellows disease
Updated: March 7, 2023

Wilt Diseases on Flowers

General description of fungal and bacterial wilt diseases of flowers.
fusarium wilt symptoms on chrysanthemum
Updated: March 7, 2023

Virus Diseases on Flowers

Learn to identify the symptoms of various viruses of flowers.
spots on astilbe leaf - cucumber mosaic virus symptoms
Updated: March 7, 2023

Southern Blight Disease on Flowers

Identify and control the spread of Southern blight disease on flowers.
southern blight symptoms on delphinium
Updated: March 7, 2023

Wilt Diseases of Vinca

Phomopsis and phoma are wilt diseases on vinca groundcover.
wilting and browning vinca - phoma symptoms
Updated: March 7, 2023

Rust Disease on Flowers and Vines

Learn to spot rust disease on flowers and vines.
red spots on hollyhock leaves - rust symptoms
Updated: March 7, 2023

Root, Crown, and Stem Rots on Flowers

Identify and manage root, crown, and stem rots on flowers and groundcovers.
root rot symptoms on pansy
Updated: March 7, 2023

Powdery Mildew Disease on Flowers

Learn to identify powdery mildew symptoms and its management on flowers.
powdery mildew on phlox leaves
Updated: March 7, 2023

Volutella Dieback of Pachysandra Groundcover

Identify symptoms of volutella dieback disease on pachysandra groundcover.
brown spots on pachysandra - volutella symptoms