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Image Subject Name Scientific Name Description
0454044 Verticillium wilt Verticillium albo atrum General view of hop garden affected by the progressive strain of Verticillium albo-atrum.
0656022 Dothistroma needle blight Mycosphaerella pini Mycosphaerella pini on Pinus maximinoi; note aggregated, strongly erumpent ascostromata with needle reddening. Compare with No. 0656021.
0656028 Tomato Black Ring Virus Nepovirus TBRV Chlorotic streaking in a leaf of strawberry cv. Talisman infected with tomato black ring nepovirus.
0656029 Tomato Black Ring Virus Nepovirus TBRV Chlorotic streaking in a leaf of strawberry cv. Talisman infected with tomato black ring nepovirus.
0656030 Tomato Black Ring Virus Nepovirus TBRV Chlorotic spots and ringspots in a leaf of raspberry cv. Malling Exploit infected with tomato black ring nepovirus.
0656027 Tomato Black Ring Virus Nepovirus TBRV Chlorotic spots and ringspots in a leaf of strawberry cv. Talisman, infected with tomato black ring nepovirus.
0656021 brown spot needle blight of pine Mycosphaerella dearnessii Mycosphaerella dearnessii on Pinus oocarpa; note linearly arranged, solitary erumpent ascostromata. Compare with No. 0656022
0176001 Tobacco Ringspot Virus Nepovirus TRSV
0454039 chrysanthemum white rust Puccinia horiana Lower surface of Puccinia horiana-infected chrysanthemum leaf, showing buff pink teliosori.
0454035 Red stele root rot of strawberry Phytophthora fragariae fragariae Strawberry runner root system infected by Phytophthora fragariae var. fragariae, showing typical rat's tail appearance.
0454023 potato wart disease Synchytrium endobioticum Synchytrium endobioticum: newly harvested, warted potato tubers of cv. Duke of York; note that some warts are already starting to rot.
0454020 ray (flower) blight of chrysanthemum Didymella ligulicola Chrysanthemum leaf with lesion caused by Didymella ligulicola.
0176068 Bean Common Mosaic Virus Potyvirus BCMV Mosaic symptoms caused by bean common mosaic potyvirus in Phaseolus vulgaris.
0162100 Strawberry Crinkle Virus Cytorhabdovirus SCrV Symptoms in pot-grown strawberry plant.
0454016 Dutch elm disease Ophiostoma ulmi Elm tree severely attacked by Ophiostoma ulmi in late summer, showing a range of foliar symptoms.
0176069 Bean Common Mosaic Virus Potyvirus BCMV Black root necrosis reaction caused by a serotype strain (NL3) of bean common mosaic potyvirus in a Phaseolus vulgaris genotype possessing I gene resistance.
0162072 Arabis Mosaic Virus Nepovirus ArMV
0656019 brown spot needle blight of pine Mycosphaerella dearnessii Close-up of brown spot (Mycosphaerella dearnessii) symptoms on Pinus oocarpa.
0176011 Tomato Yellow Leaf Curl Virus Begomovirus TYLCV Infected shoot in greenhouse grown tomato plant.
0656081 bacterial canker of poplar Xanthomonas populi Canker, girdling stem of a highly susceptible Populus tremula tree.
0454038 chrysanthemum white rust Puccinia horiana Upper surface of Puccinia horiana-infected chrysanthemum leaf, showing chlorotic spotting.
0176047 Dothistroma needle blight Mycosphaerella pini showing infection of both young and old foliage.
0162104 Tobacco Ringspot Virus Nepovirus TRSV
0162014 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Potato plant in pot showing wilt symptoms.
0162013 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Bacterial ooze exuding from eye of potato tuber.
0162071 Arabis Mosaic Virus Nepovirus ArMV Symptoms on raspberry (Rubus idaeus cv. Malling Admiral).
0656020 Dothistroma needle blight Mycosphaerella pini Mycosphaerella pini (red band needle blight) on Pinus maximinoi; note general reddening of needles.
0454001 bacterial canker of poplar Xanthomonas populi Leaf scar canker caused by Xanthomonas populi on young stem of poplar.
0454033 Red stele root rot of strawberry Phytophthora fragariae fragariae Strawberry plants infected by Phytophthora fragariae var. fragariae, showing poor growth and wilting.
0162082 Potato Spindle Tuber Viroid Pospiviroid PSTVd Symptoms in pot-grown tomato plant.
0176010 Tomato Yellow Leaf Curl Virus Begomovirus TYLCV Healthy and infected leaves.
0454034 red stele Phytophthora fragariae Healthy control strawberry plants (not affected by Phytophthora fragariae).
1277108 Phytophthora disease of alders Phytophthora alni
0454017 Dutch elm disease Ophiostoma ulmi Cross section of an Ophiostoma ulmi-infected elm branch, showing characteristic dark spots in the wood.
0176046 brown spot needle blight of pine Mycosphaerella dearnessii on second year foliage of Pinus maximinoi.
5110058 Phytophthora kernoviae Phytophthora kernoviae Organism grown on P5ARP[H] medium (Jeffers SN and Martin SB (1986) Comparison of two media selective for Phytophthora and Pythium sp. Plant disease 70, 1038-1043). Note earlier spelling of organism prior to publication of official name.
1949019 Japanese pear rust Gymnosporangium asiaticum Aecidia (Roestelia stage) of Gymnosporangium asiaticum on pear.
1949020 Japanese pear rust Gymnosporangium asiaticum Telia of Gymnosporangium asiaticum on the alternate host Juniperus chinensis.
0725099 gangrene Phoma exigua var. foveata External symptoms of Phoma exigua var. foveata on potato tubers showing irregularly shaped, sunken lesions.
0725098 gangrene Phoma exigua var. foveata Internal symptoms of Phoma exigua var. foveata on potato tubers showing more or less extensive cavities with definitive margins. Black and white photo
0725094 Sapstreak disease of maple Ceratocystis virescens Trunk of Acer saccharum showing sap streak symptoms due to Ceratocystis virescens.
0725093 oak wilt Ceratocystis fagacearum Sporulating mat on red oak killed by Ceratocystis fagacearum.
0725092 oak wilt Ceratocystis fagacearum Xylem of red oak affected by Ceratocystis fagacearum showing diffuse stain (often there is less stain than this).
0725089 Cherry Necrotic Rusty Mottle Virus Foveavirus CNRMV Cherry necrotic rusty mottle disease in Prunus avium cv. Frogmore, showing necrotic spots. Black and white photo
0725065 oak wilt Ceratocystis fagacearum Ceratocystis fagacearum in red oak (probably northern pin oak Quercus ellipsoidalis) surrounding a new house in Minnesota. (It was probably the pruning of trees during the building of the house that allowed oak wilt to enter the stand.
0660081 Raspberry Ringspot Virus Nepovirus RpRSV Raspberry ringspot nepovirus infection in raspberry cv. Malling Jewel, showing chlorotic blotches.
0656098 Strawberry Vein Banding Virus Caulimovirus SVBV Leaf symptoms of infection by strawberry veinbanding caulimovirus in Fragaria vesca (UC-1). Black and white image
0656097 Raspberry Ringspot Virus Nepovirus RpRSV Raspberry ringspot nepovirus infection in strawberry cv. Huxley, showing irregularly shaped chlorotic blotches, some with a necrotic centre. Black and white image
0656092 Verticillium wilt Verticillium albo atrum Yellowing and tiger-striping effect on hop leaves affected by the progressive strain of Verticillium albo-atrum.
0656091 gladiolus rust Uromyces transversalis Uredia of Uromyces transversalis on gladiolus leaf, showing sori typically elongated across the leaf.
0656089 ray (flower) blight of chrysanthemum Didymella ligulicola Symptoms of Didymella ligulicola on flowering stems of chrysanthemum. Black and white image
0656090 rust Puccinia pelargonii-zonalis Severe infection of pelargonium leaf by Puccinia pelargonii-zonalis showing characteristic concentric rings of uredosori.
0656084 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Transverse section of potato tuber infected by Clavibacter michiganensis subsp. sepedonicus; showing discoloration of vascular ring and adjacent tissue, and bacterial ooze.
5170093 turkey tail Trametes versicolor on woodland floor deadwood
5170094 turkey tail Trametes versicolor Lateral view showing tiers.
5170095 turkey tail Trametes versicolor
5137062 Phytophthora kernoviae Phytophthora kernoviae From Mycol.Res 109, 853-859; Colony types of Phytophthora kernoviae. Figs 1-4. After10 d at 20 xC on CA in complete darkness. Figs 5-6. After 10 d at 20 x on CA with some exposure to light at 7 d for colony measurement. Figs 7-8. After 10 d on CA at ambient room temperature (y23 x) in diurnal light. (Figs 1, 5, isolate P1560; Figs 2, 6-7, isolate P1554; Fig. 3, P1601; Fig. 4, isolate P1608; Fig. 8, isolate P1600).
5110055 Phytophthora kernoviae Phytophthora kernoviae Single sporangium (foreground) releasing zoospore
5110056 Phytophthora kernoviae Phytophthora kernoviae P. kernoviae sporangium.
5110059 Phytophthora kernoviae Phytophthora kernoviae necrosis of rhododendron leaves
5110060 Phytophthora kernoviae Phytophthora kernoviae necrotic lesion on stem
5110061 Phytophthora kernoviae Phytophthora kernoviae necrotic lesion on foliage
5110020 Phytophthora kernoviae Phytophthora kernoviae external lesion; 14 November 2003
5110021 Phytophthora kernoviae Phytophthora kernoviae lesion on trunk
5110022 Phytophthora kernoviae Phytophthora kernoviae bleeding lesion on trunk
5110053 Phytophthora kernoviae Phytophthora kernoviae
5110054 Phytophthora kernoviae Phytophthora kernoviae bleeding lesion on trunk
5110023 Phytophthora kernoviae Phytophthora kernoviae lesions of foliage of magnolia
5110024 Phytophthora kernoviae Phytophthora kernoviae wilting of infected rhododendron
5110025 Phytophthora kernoviae Phytophthora kernoviae wilting
0454043 gladiolus rust Uromyces transversalis Uredia (yellow-orange) and telia (dark brown) of Uromyces transversalis on gladiolus leaf.
0454040 potato wart disease Synchytrium endobioticum Dead resting (winter) sporangium of Synchytrium endobioticum.
0454042 potato wart disease Synchytrium endobioticum Live resting (winter) sporangium of Synchytrium endobioticum.
0454036 red stele Phytophthora fragariae Healthy root system of young strawberry runner, not affected by Phytophthora fragariae, showing normal lateral root development.
0454037 red stele Phytophthora fragariae Longitudinal section of roots of strawberry plants showing typical red-core symptoms caused by Phytophthora fragariae.
0176079 chrysanthemum white rust Puccinia horiana Lower surface of Puccinia horiana-infected chrysanthemum leaf, showing teliosori which have turned white due to presence of sporidia.
0176051 Dothistroma needle blight Mycosphaerella pini Dothistroma (Mycosphaerella pini anamorph) acervulus (transverse section); note hyaline mass.
0176049 Dothistroma needle blight Mycosphaerella pini Dothistroma anamorph of Mycosphaerella pini; note prominent, aggregated acervuli and exposed conidiogenous tissues.
0176077 Dutch elm disease Ophiostoma ulmi Elm shoots variously attacked by Dutch elm disease (Ophiostoma ulmi); note yellowing and browning of foliage and formation of crozier-like hooks at twig ends.
0176056 brown spot needle blight of pine Mycosphaerella dearnessii Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus maximinoi; compare with Nos. UGA0176054 and UGA0176055 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude.
0176054 brown spot needle blight of pine Mycosphaerella dearnessii Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus caribaea; compare with compare with Nos. UGA0176055 and UGA0176056 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude.
0176050 brown spot needle blight of pine Mycosphaerella dearnessii Lecanosticta (Mycosphaerella dearnessii anamorph) acervulus (transverse section); note dark (green) spore mass.
0176052 brown spot needle blight of pine Mycosphaerella dearnessii Asci of Mycosphaerella dearnessii.
0176053 brown spot needle blight of pine Mycosphaerella dearnessii Ascospores of Mycosphaerella dearnessii.
0176048 brown spot needle blight of pine Mycosphaerella dearnessii Lecanosticta anamorph of Mycosphaerella dearnessii; note solitary, discrete acervulus with green conidial cirrus exuding onto needle.
0176055 brown spot needle blight of pine Mycosphaerella dearnessii Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus oocarpa; compare with Nos. UGA0176054 and UGA0176056 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude.
0177058 Raspberry Ringspot Virus Nepovirus RpRSV Raspberry ringspot nepovirus infection in Chenopodium quinoa. Left: virulent isolate; right: mild isolate.
0176058 Tomato Black Ring Virus Nepovirus TBRV Irregularly shaped chlorotic spots and mottling in a leaf of strawberry cv. Auchincruive Climax infected with tomato black ring nepovirus.
1277025 Collybia fungus Collybia fusipes

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