Phytophthora ramorum(PHYTRA)
Photos
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Sporangia (bar = 20 µm) on a non-selective non-selective medium (CPA).
Viburnum leaf tip necrosis.
Courtesy: Crown copyright Fera Science Ltd
Needle dieback on Taxus.
Courtesy: Crown copyright Fera Science Ltd
Oak - dead tree.
Courtesy: Crown copyright Fera Science Ltd
Chlamydospore on a selective medium [P5ARP(H)].
Sporangia on a selective medium [P5ARP(H)].
Typical outgrowth of colony on a non-selective medium (CPA).
Chlamydospore (bar = 20 µm) on a non-selective non-selective medium (CPA).
Typical coralloid mycelium on a selective medium [P5ARP(H)].
Leaf blight symptoms on Kalmia latifolia.
Courtesy: Crown copyright Fera Science Ltd
Viburnum stem base discoloration and necrosis.
Courtesy: Crown copyright Fera Science Ltd
Leaf blight symptoms on Pieris.
Courtesy: Crown copyright Fera Science Ltd
Typical slow growing colony on a selective medium [P5ARP(H)].
Larch plantation heavily infected with P. ramorum. Crown thinning.
Courtesy: Alexandra Schlenzig
First symptoms of P. ramorum on larch: Yellowing of single branches.
Courtesy: Alexandra Schlenzig
Forest edge with P. ramorum-infected larch tops in background
Courtesy: Alexandra Schlenzig
First symptoms of P. ramorum on larch: Dieback of single branches.
Courtesy: Alexandra Schlenzig
Canker on Quercus falcata.
Courtesy: Crown copyright Fera Science Ltd
Bleeding canker on oak.
Courtesy: Crown copyright Fera Science Ltd
Rhododendron shoot canker.
Courtesy: Crown copyright Fera Science Ltd
Rhododendron shoot tip wilt.
Courtesy: Crown copyright Fera Science Ltd
Rhododendron leaf necrosis of midrib from petiole.
Courtesy: Crown copyright Fera Science Ltd
Leaf blight symptoms on Camellia.
Courtesy: Crown copyright Fera Science Ltd
Leaf blight symptoms on Leucothoe.
Courtesy: Crown copyright Fera Science Ltd
Canker on Quercus rubra.
Courtesy: Crown copyright Fera Science Ltd
Leaf blight symptoms on Syringa.
Courtesy: Crown copyright Fera Science Ltd
Phytophthora ramorum in Quercus rubra
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Fagus sylvatica
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Fagus sylvatica
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Quercus rubra
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Quercus rubra
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Fagus sylvatica
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Rhododendron
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Rhododendron
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Rhododendron
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)
Phytophthora ramorum in Rhododendron
Courtesy: Wietse den Hartog NVWA (NPPO the Netherlands)