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University of Kentucky

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Image Subject Name Scientific Name Description
5427733 Phytophthora blight Phytophthora nicotianae Various stages of symptoms due to Phytophthora crown and root rot on gloxinia transplants
5388286 Phytophthora root rot Phytophthora cinnamomi Shrubs affected by phytophthora root rot.
5424461 Phytophthora blight Phytophthora nicotianae Characteristic disking of pith tissue of the lower stem (shank) of an infected tobacco plant.
5430477 Phytophthora root rot Phytophthora cactorum Close-up of bleeding canker on a beech trunk.
5424462 Phytophthora blight Phytophthora nicotianae Characteristic disking of pith tissue of the lower stem (shank) of an infected tobacco plant.
5368868 Phytophthora blight Phytophthora nicotianae Characteristic disking of pith tissue of the lower stem (shank) of an infected tobacco plant. Hybrid 403, a burley variety
5368705 Phytophthora blight Phytophthora nicotianae Asexual spore-producing bodies called "sporangia" of the fungus Phytophthora parasitica var. nicotianae. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue.
5368866 Phytophthora blight Phytophthora nicotianae Plants with Black shank wilt, turn yellow, and eventally die. Hybrid 403, a burley variety
5368865 Phytophthora blight Phytophthora nicotianae Plants with Black shank wilt, turn yellow, and eventually die. Hybrid 403, a burley variety
5368867 Phytophthora blight Phytophthora nicotianae Plants with Black shank wilt, turn yellow, and eventually die. Hybrid 403, a burley variety
5385794 Phytophthora root rot Phytophthora cactorum Blighting of new growth and/or flower buds
5385791 Phytophthora root rot Phytophthora cactorum Blighting of new growth and/or flower buds
5385796 Phytophthora root rot Phytophthora cactorum Pieces of blighted tissue incubated in water and viewed under the microscope
5385793 Phytophthora root rot Phytophthora cactorum Blighting of new growth and/or flower buds
5385795 Phytophthora root rot Phytophthora cactorum Blighting of new growth and/or flower buds
5385792 Phytophthora root rot Phytophthora cactorum Blighting of new growth and/or flower buds
5385797 Phytophthora root rot Phytophthora cactorum Sporangia, asexual spore-producing bodies of the fungus
5385799 Phytophthora root rot Phytophthora cactorum Sporangia, asexual spore-producing bodies of the fungus
5385800 Phytophthora root rot Phytophthora cactorum Sporangia, asexual spore-producing bodies of the fungus
5385798 Phytophthora root rot Phytophthora cactorum Sporangia, asexual spore-producing bodies of the fungus
5368293 Phytophthora blight Phytophthora nicotianae Zoospores swimming away from sporangium. From narrowleaf madole variety.
5368291 Phytophthora blight Phytophthora nicotianae Sporangium ready to release its zoospores. From narrowleaf madole variety.
5368292 Phytophthora blight Phytophthora nicotianae Zoospores swimming out of sporangium. From narrowleaf madole variety.
5368670 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359
5368675 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.
5368677 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.
5368672 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359
5368674 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark variety VA 359
5368676 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.
5368671 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359
5368673 Phytophthora blight Phytophthora nicotianae Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359
5368327 Phytophthora root and stem rot Phytophthora drechsleri Swollen, lobed, sporangia of Phytophthora dreschleri in culture.
5368323 Phytophthora root and stem rot Phytophthora drechsleri Stem split to see decay of pith tissue of the lower stem.
5368320 Phytophthora root and stem rot Phytophthora drechsleri Lower stem of a symptomatic plant. Fungal growth on the outside of the lower stem is not from the causal agent.
5368321 Phytophthora root and stem rot Phytophthora drechsleri Stem split to see decay of pith tissue of the lower stem.
5368322 Phytophthora root and stem rot Phytophthora drechsleri Close-up of infected pith tissue with disking similar to that seen with Black shank of tobacco.
5368325 Phytophthora root and stem rot Phytophthora drechsleri Pith tissue incubated in water induces formation of several sporangium.
5368326 Phytophthora root and stem rot Phytophthora drechsleri Mycelium of Phytophthora dreschleri in culture.
5368328 Phytophthora root and stem rot Phytophthora drechsleri Two sporangia where a new sporangium is growing up through the remains of an older, empty sporangium.
5368324 Phytophthora root and stem rot Phytophthora drechsleri Pith tissue incubated in water induces formation of a sporangium. This one is empty of spores.
5368331 Phytophthora root and stem rot Phytophthora drechsleri Zoospores just in the process of releasing from a sporangium.
5368332 Phytophthora root and stem rot Phytophthora drechsleri Zoospores swimming away from the sporangium.
5368329 Phytophthora root and stem rot Phytophthora drechsleri A new hyphal structure growing from below the base of an older, empty sporangium.
5368330 Phytophthora root and stem rot Phytophthora drechsleri A sporangium before it has released its spores.
5368333 Phytophthora root and stem rot Phytophthora drechsleri Zoospores released from the sporangium with two remaining in the sporangium.
5368334 Phytophthora root and stem rot Phytophthora drechsleri Zoospores beginning to move away from the vicinity of the sporangium.
5368452 black root rot Thielaviopsis basicola dark, thickened spores called "aleuriospores" within root tissue.
5368449 black root rot Thielaviopsis basicola dark, thickened spores called "aleuriospores" within root tissue.
5368450 black root rot Thielaviopsis basicola dark, thickened spores called "aleuriospores" within root tissue.
5368451 black root rot Thielaviopsis basicola dark, thickened spores called "aleuriospores" within root tissue.
5368640 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368641 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368646 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368643 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368644 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368642 take-all root rot Gaeumannomyces graminis var. graminis Plants overall were somewhat unthrifty but the root systems were not visually impaired.
5368645 take-all root rot Gaeumannomyces graminis var. graminis Ectotrophic hyphae and lobed hyphopodia of the fungus Gaeumannomyces graminis var. graminis.
5368639 take-all root rot Gaeumannomyces graminis var. graminis Plants overall were unthrifty and the root systems had a significant reduction in the number of roots.
5368706 Phytophthora blight Phytophthora nicotianae Asexual spore-producing bodies called "sporangia" of the fungus. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue. KY-14XL8
5368703 Phytophthora blight Phytophthora nicotianae Asexual spore-producing bodies called "sporangia" of the fungus. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue. KY-14XL8
5368704 Phytophthora blight Phytophthora nicotianae Asexual spore-producing bodies called "sporangia" of the fungus. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue. KY-14XL8

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