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Diseases - Root and Butt / Root and Stem Diseases


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54 Images of 6 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5430019 charcoal rot Macrophomina phaseolina Seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina.
5430020 charcoal rot Macrophomina phaseolina Single seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina.
5430021 charcoal rot Macrophomina phaseolina Soybean seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina.
5430091 Pythium diseases Pythium spp. filamentous and terminal sporagia Host: Nicotiana tabacum variety Tennessee 90
5430092 Pythium diseases Pythium spp. filamentous and terminal sporagia Host: Nicotina tabacum variety Tennessee 90
5424438 black rot Guignardia bidwellii Spores of the fungus Phyllosticta ampelicida.
5430070 charcoal rot Macrophomina phaseolina Young, infected plants
5430071 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia"
5430072 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia"
5430073 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia"
5368519 Fusarium wilts, blights, rots and damping-off Fusarium spp. Large pumpkin with extensive rotting.
5368520 Fusarium wilts, blights, rots and damping-off Fusarium spp. Close-up of infected area of fruit with white, fungal mycelium.
5368521 Fusarium wilts, blights, rots and damping-off Fusarium spp. Close-up of infected with white, fungal mycelium around the outer edge and masses of spores in the center.
5368522 Fusarium wilts, blights, rots and damping-off Fusarium spp. Close-up of infected with white, fungal mycelium around the outer edge and masses of spores in the center.
5368804 Phytophthora root and crown rots Phytophthora spp. Fruit decay is dark brown often with darkened, wavy rings around the margin.
5368805 Phytophthora root and crown rots Phytophthora spp. Single, decayed fruit with darkened, wavy rings around the margin.
5368806 Phytophthora root and crown rots Phytophthora spp. Single, decayed fruit with darkened, wavy rings around the margin.
5368807 Phytophthora root and crown rots Phytophthora spp. Single, decayed fruit with darkened, infected area.
5369048 Pythium diseases Pythium spp. Roots turn gray/black and outer root tissue can pull away easily.
5369049 Pythium diseases Pythium spp. Roots turn gray/black and outer root tissue can pull away easily.
5369050 Pythium diseases Pythium spp. sexual reproductive spores ("oospores") seen in roots; look like hollow tires.
5369051 Pythium diseases Pythium spp. A single sexual reproductive spore ("oospore")
5369011 Pythium diseases Pythium spp. oospores in root tissue. Narrowleaf Madole
5369012 Pythium diseases Pythium spp. oospores in root tissue. Narrowleaf Madole
5369013 Pythium diseases Pythium spp. oospores in root tissue. Narrowleaf Madole
5369014 Pythium diseases Pythium spp. oospores in root tissue. Narrowleaf Madole
5368505 charcoal rot Macrophomina phaseolina discoloration of tissue due to infection
5368506 charcoal rot Macrophomina phaseolina discoloration of tissue due to infection
5368507 charcoal rot Macrophomina phaseolina discoloration of tissue due to infection
5368508 charcoal rot Macrophomina phaseolina discoloration of tissue due to infection
5368624 Pythium diseases Pythium spp. tissue decay due to infection by a species of Pythium
5368625 Pythium diseases Pythium spp. tissue decay due to infection by a species of Pythium
5368626 Pythium diseases Pythium spp. oospores of a species of Pythium
5368627 Pythium diseases Pythium spp. oospores of a species of Pythium
5368628 Pythium diseases Pythium spp. oospores of a species of Pythium
5368629 Pythium diseases Pythium spp. oospores of a species of Pythium
5368658 black rot Guignardia bidwellii Dark, spore-producing bodies ("pycnidia") on fruit
5368659 black rot Guignardia bidwellii Dark, spore-producing bodies ("pycnidia") on fruit oozing tan tendrils of spores
5368660 black rot Guignardia bidwellii Spore-producing body ("pycnidia") oozing spores
5368721 black rot Botryosphaeria obtusa Irregular brown spots/blotches with lighter centers and darker borders on leaves
5368722 black rot Botryosphaeria obtusa Irregular brown spots/blotches with lighter centers and darker borders on leaves
5368723 black rot Botryosphaeria obtusa A single black, spore-producing body ("pycnidia")
5368724 black rot Botryosphaeria obtusa Dark, asexual conidia of the fungus Spheropsis malorum coming from single pycnidia.
5368875 Pythium diseases Pythium spp. Plants were overwatered which stressed the plants. Roots were infected with Pythium and Rhizoctonia.
5368876 Pythium diseases Pythium spp. Plants were overwatered which stressed the plants. Roots were infected with Pythium and Rhizoctonia.
5368879 Pythium diseases Pythium spp. filamentous and one terminal sporangia. Tennessee 90
5368880 Pythium diseases Pythium spp. filamentous and one terminal sporangia with zoospores (round structure at bottom right). Tennessee 90
5368881 Pythium diseases Pythium spp. filamentous sporangia. Tennessee 90
5368882 Pythium diseases Pythium spp. zoospores releasing from a terminal sporangium. Tennessee 90
5369021 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia"
5369022 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia".
5369023 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia".
5369024 charcoal rot Macrophomina phaseolina Many survival structures of the fungus called "microsclerotia".
5369076 black rot Guignardia bidwellii Spores of the fungus Phyllosticta ampelicida.

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