Erysiphaceae (family) at Kambah, ACT

Powdery Mildews at Kambah, ACT

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Identification history

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

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Author'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 wrote:

28 Apr 2019

Great photo. Thanks for the information about Illeis galbula.

KenT wrote:

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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