BioImages: The Virtual Field-Guide (UK)

Golovinomyces orontii (Castagne) V.P. Heluta, 1988 (a powdery mildew)

Date: 12 June 2005
Location: Berks, England
Voucher: 12/06/2005[A]
(Please quote this in any queries about this record)
State: Imperfect stage
Record Summary: on Winter-flowering Pansies
Associated organism: on live leaf, stem, sepal of Viola x wittrockiana
Identification Notes: White powdery covering of varying intensity covering green parts of the plant. Where heavily infected, the underlying tissue becomes dark greyish

Images etc

naked eye photograph Heavily infected leaf - upperside - close-up 500 by 238 pixels
naked eye photograph Heavily infected leaf - underside - close-up 500 by 230 pixels
naked eye photograph Host plant 500 by 411 pixels
naked eye photograph Infected flowering shoot 500 by 391 pixels
naked eye photograph Infected flowering shoot 500 by 430 pixels
naked eye photograph Infected leaf - upperside - close-up 500 by 248 pixels
naked eye photograph Infected leaf - underside - close-up 500 by 251 pixels
naked eye photograph Infected leaves 500 by 379 pixels
naked eye photograph Infected leaves 500 by 327 pixels
microscope photograph Conidia and conidiophores - magnified 500 by 405 pixels
microscope photograph Conidia and conidiophores - magnified 500 by 481 pixels
microscope photograph Conidiophore and conidia - magnified 492 by 500 pixels
microscope photograph Conidiophores and conidia - magnified 500 by 278 pixels
microscope photograph Conidiophores and conidia - magnified 500 by 333 pixels

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