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Diseases

Powdery mildew — Phlox paniculata

Phlox paniculata L.

A fungal disease caused by Erysiphe cichoracearum that affects leaves, stems, and flower stalks, leading to desiccation and reduced winter hardiness of the plant.

In the reference 68 varieties crop Garden phlox, where this is mentioned in the description.

The causal agents of powdery mildew on Phlox paniculata are fungi of the order Erysiphales, predominantly Erysiphe cichoracearum (synonym Golovinomyces cichoracearum), specifically the form Erysiphe cichoracearum D.C. f. phlogis Jacz. Initial symptoms appear in early summer as a loose, white mycelial coating on the lower parts of the plant.

As the disease progresses, the coating becomes dense, acquiring a felt-like texture and a grayish-brown hue, covering all above-ground plant organs. This inhibits photosynthesis, causing leaves to curl and dry out, as well as an overall loss of aesthetic appeal and plant vigor. In breeding, resistance to the pathogen is evaluated as a phenotypic varietal trait without the identification of specific genetic markers.

General information about the subject — on the page Powdery mildew.

Sources8

Varieties of Garden phlox mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Barsixty

Active

Phlox paniculata L. · Garden phlox

G.B.H BARTELS

6 records

Barsixtytwo

Active

Phlox paniculata L. · Garden phlox

G.B.H BARTELS

6 records

Delilah

Active

Phlox paniculata L. · Garden phlox

Oudshoorn Hubertus Gerardus

4 records

Verscan

Active

Phlox paniculata L. · Garden phlox

Verschoor Janus

4 records

Versde

Active

Phlox paniculata L. · Garden phlox

Verschoor Janus

4 records

Barsixtyone

Active

Phlox paniculata L. · Garden phlox

G.B.H BARTELS

5 records

Bartwentynine

Active

Phlox paniculata L. · Garden phlox

G.B.H BARTELS

4 records

Pina Colada

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

Aureole

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

Purple Kiss

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

Verpri

Active

Phlox paniculata L. · Garden phlox

Verschoor Janus

3 records

Alexandra

Active

Phlox paniculata L. · Garden phlox

Geerlings-Meyer

3 records

Balkapolav

Active

Phlox paniculata L. · Garden phlox

Kievit Christa

3 records

Glamour Girl

Active

Phlox paniculata L. · Garden phlox

Walters Gardens Inc

3 records

Balkapowibi

Active

Phlox paniculata L. · Garden phlox

Kievit Christa

3 records

Fondant Fancy

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

Peppermint Twist

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

Tequila Sunrise

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem 2015 CS, NL

3 records

Ditomsur

Active

Phlox paniculata L. · Garden phlox

Tonies Hubertus Josephus|Noordwijkerhout, NL

3 records

Appofalp

Active

Phlox paniculata L. · Garden phlox

van den Haak Jelle

4 records

Ditosdre

Active

Phlox paniculata L. · Garden phlox

Tonies Hubertus Josephus|Noordwijkerhout, NL

3 records

Ditosse

Active

Phlox paniculata L. · Garden phlox

Tonies Hubertus Josephus|Noordwijkerhout, NL

3 records

Cosmopolitan

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem, NL

3 records

APPOTTPI

Active

Phlox paniculata L. · Garden phlox

van den Haak Jelle

4 records