Phytopathologia Mediterranea (2001) 40, S429-S432

Akif Eskalen and W. Douglas Gubler (2001)
Association of spores of Phaeomoniella chlamydospora, Phaeoacremonium inflatipes, and Pm. aleophilum with grapevine cordons in California
Phytopathologia Mediterranea 40 (Suppl.), S429-S432
Abstract: Esca (black measles) of grapevine has long been known to occur wherever grapes are grown. Phaeomoniella chlamydospora and two species of Phaeoacremonium, Pm. inflatipes and Pm. aleophilum, have been associated with esca and Petri grapevine decline in major production regions of California. Though present in symptomatic grapevines and capable of causing foliar symptoms of esca, Phaeomoniella chlamydospora does not cause the typical symptoms on fruit. However, trapping studies showed that spores of Pa. chlamydospora, Pm. inflatipes and Pm. aleophilum were captured throughout the year in vineyards ranging from the north California coast to the southern San Joaquin Valley. They can be considered airborne fungi capable of being water-splashed by pruning or other wounds during part of their biological cycle. Trapping of spores coincided with rainfall events for Pa. chlamydospora and Pm. inflatipes, and to a lesser degree for Pm. aleophilum. However, this last species was trapped during periods of time when rainfall did not occur and was trapped longer into the summer.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Akif Eskalen, Walter D. Gubler

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phaeoacremonium inflatipes	Grapevine (Vitis)	U.S.A. (SW)
	Phaeomoniella chlamydospora	Grapevine (Vitis)	U.S.A. (SW)
	Phaeoacremonium minimum	Grapevine (Vitis)	U.S.A. (SW)