Erysiphaceae (family)

Powdery Mildews at Kambah, ACT

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Erysiphaceae (family) MichaelMulvaney 5 Dec 2019
Unverified HarveyPerkins 28 Apr 2019

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User's notes

Powdery mildew (possibly Podosphaera sp.) infesting zucchini leaves and stems. The ladybird is a fungus-eating ladybird Illeis galbula about 4-5 mm long.

2 comments

Pam
   28 Apr 2019
Great photo. Thanks for the information about Illeis galbula.
   29 Apr 2019
It seems both Golovinomyces orontii and Podosphaera fusca (for relevant synonymy see Species fungorum) occur on Zucchini and occur in Australia. Examination with a compound microscope would be needed to distinguish between the genera and molecular methods may be necessary to confirm species. Not a group I've ever really looked at, so family level identification of Erysiphaceae is as far as I can take it. Current reference seems to be: Taxonomic Manual of the Erysiphales (Powdery Mildews) by Uwe Braun and Roger TA Cook pub. 2012.

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  • 1 Abundance
  • 14 Apr 2019 02:10 PM Recorded on
  • HarveyPerkins Recorded by

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