Difference between revisions of "Alfalfa:Photos"
(Created page with "'''Alfalfa Pest and Nutritional Disorder Photos''' == Agrobacterium_tumefaciens == ''Agrobacterium tumefaciens'' Large galls from inoculation of young plants with Agr...") |
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− | + | Alfalfa Pest and Nutritional Disorder Photos | |
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''Alfalfa stem nematode white flagging, Ditylenchus dipsaci'' (Gerald D. Griffin, USDA) | ''Alfalfa stem nematode white flagging, Ditylenchus dipsaci'' (Gerald D. Griffin, USDA) | ||
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''Alfalfa stem nematode damage'' (H. F. Schwartz; Colorado State University) | ''Alfalfa stem nematode damage'' (H. F. Schwartz; Colorado State University) | ||
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''Alfalfa stem nematode damage'' (H. F. Schwartz; Colorado State University) | ''Alfalfa stem nematode damage'' (H. F. Schwartz; Colorado State University) | ||
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''Anthracnose - Sorghum '' | ''Anthracnose - Sorghum '' | ||
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''Aphanomyces root rot'' on inoculated seedlings; rating 1 (healthy) to 5 (dead) (Deborah Samac) | ''Aphanomyces root rot'' on inoculated seedlings; rating 1 (healthy) to 5 (dead) (Deborah Samac) | ||
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''Ascochyta Rough Spot - Sorghum '' | ''Ascochyta Rough Spot - Sorghum '' | ||
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''Bacterial leaf spot '' (Fred Frosheiser) | ''Bacterial leaf spot '' (Fred Frosheiser) | ||
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''Bacterial leaf spot '' (Fred Frosheiser) | ''Bacterial leaf spot '' (Fred Frosheiser) | ||
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''Bacterial leaf spot water-soaked lesions'' (Donald L. Stuteville, Kansas State University) | ''Bacterial leaf spot water-soaked lesions'' (Donald L. Stuteville, Kansas State University) | ||
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''Bacterial leaf spot translucent lesions'' (Donald L. Stuteville, Kansas State University) | ''Bacterial leaf spot translucent lesions'' (Donald L. Stuteville, Kansas State University) | ||
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''Bacterial leaf spot lesions, alfalfa stems 3 weeks after inoculation'' (Donald L. Stuteville, Kansas State University | ''Bacterial leaf spot lesions, alfalfa stems 3 weeks after inoculation'' (Donald L. Stuteville, Kansas State University | ||
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''Bacterial wilt root cross sections. Most diseased (top left) to healthy (bottom right)'' (Barnes) | ''Bacterial wilt root cross sections. Most diseased (top left) to healthy (bottom right)'' (Barnes) | ||
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''Bacterial wilt symptoms in the field (front plant) compared to a healthy plant behind'' (Deborah Samac) | ''Bacterial wilt symptoms in the field (front plant) compared to a healthy plant behind'' (Deborah Samac) | ||
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''Bacterial wilt symptoms. Healthy plant (left), diseased root section (middle), diseased plant (right)'' (Barnes) | ''Bacterial wilt symptoms. Healthy plant (left), diseased root section (middle), diseased plant (right)'' (Barnes) | ||
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''Blister beetle on alfalfa'' (Colorado State University) | ''Blister beetle on alfalfa'' (Colorado State University) | ||
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''Calonectria crotalariae infected alfalfa plant (base and stem)'' (Donald L. Stuteville, Kansas State University) | ''Calonectria crotalariae infected alfalfa plant (base and stem)'' (Donald L. Stuteville, Kansas State University) | ||
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''Leaf spot, Cercospora medicaginis'' (William G. Willis, Kansas State University) | ''Leaf spot, Cercospora medicaginis'' (William G. Willis, Kansas State University) | ||
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''Cercospora on leaves '' (Fred Frosheiser) | ''Cercospora on leaves '' (Fred Frosheiser) | ||
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''Cercospora on stems'' (Fred Frosheiser) | ''Cercospora on stems'' (Fred Frosheiser) | ||
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''Common leaf spot'' (Fred Frosheiser) | ''Common leaf spot'' (Fred Frosheiser) | ||
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''Commonleaf spot'' (Fred Frosheiser) | ''Commonleaf spot'' (Fred Frosheiser) | ||
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'Common leaf spot'' (William G. Willis, Kansas State University) | 'Common leaf spot'' (William G. Willis, Kansas State University) | ||
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''Common leaf spot lesions (magnified view), dentate margins, Pseudopeziza medicaginis apothecia rupturing, host epidermis'' (William G. Willis, Kansas State University) | ''Common leaf spot lesions (magnified view), dentate margins, Pseudopeziza medicaginis apothecia rupturing, host epidermis'' (William G. Willis, Kansas State University) | ||
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''Dodder'' (USDA-ARS) | ''Dodder'' (USDA-ARS) | ||
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''Downy mildew'' (Fred Frosheiser) | ''Downy mildew'' (Fred Frosheiser) | ||
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''Shoot systemically infected with downy mildew fungus, Peronospora trifoliorum'' (Kenneth T. Leath, USDA) | ''Shoot systemically infected with downy mildew fungus, Peronospora trifoliorum'' (Kenneth T. Leath, USDA) | ||
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''Downy mildew, upper (left), lower (right) surfaces, leaflets '' (Donald L. Stuteville, Kansas State University) | ''Downy mildew, upper (left), lower (right) surfaces, leaflets '' (Donald L. Stuteville, Kansas State University) | ||
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''Downy mildew fungus oospores (Peronospora trifoliorum), cotyledon stained, sudan iv'' (Donald L. Stuteville, Kansas State University) | ''Downy mildew fungus oospores (Peronospora trifoliorum), cotyledon stained, sudan iv'' (Donald L. Stuteville, Kansas State University) | ||
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''Downy mildew in the field (Fred Frosheiser)'' | ''Downy mildew in the field (Fred Frosheiser)'' | ||
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''Differences in foliar tolerance, low temperature among spaced plants'' (Donald L. Stuteville, Kansas State University) | ''Differences in foliar tolerance, low temperature among spaced plants'' (Donald L. Stuteville, Kansas State University) | ||
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''Frost injury'' (Barnes) | ''Frost injury'' (Barnes) | ||
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''Frost injury'' (Barnes) | ''Frost injury'' (Barnes) | ||
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''Fusarium wilt in alfalfa roots, cross sections. Healthy (top left) to most diseased (bottom right)'' (Fred Frosheiser) | ''Fusarium wilt in alfalfa roots, cross sections. Healthy (top left) to most diseased (bottom right)'' (Fred Frosheiser) | ||
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''Fusarium wilt in alfalfa roots, longitudinal section '' (Barnes) | ''Fusarium wilt in alfalfa roots, longitudinal section '' (Barnes) | ||
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''Fusarium wilt (left) and bacterial wilt (right)'' (Barnes) | ''Fusarium wilt (left) and bacterial wilt (right)'' (Barnes) | ||
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''Genetic abnormality: taproot tumors'' (Donald K. Barnes, USDA) | ''Genetic abnormality: taproot tumors'' (Donald K. Barnes, USDA) | ||
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''Genetic abnormality: heavy bark condition, rough root showing lack, functional small roots'' (Donald K. Barnes, USDA) | ''Genetic abnormality: heavy bark condition, rough root showing lack, functional small roots'' (Donald K. Barnes, USDA) | ||
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''Genetic abnormalities'' : pale green leaves, stem (left), normal green leaves, stem, light red stem, dark red stem (right)(Donald K. Barnes, USDA) | ''Genetic abnormalities'' : pale green leaves, stem (left), normal green leaves, stem, light red stem, dark red stem (right)(Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : white leaf spotting induced, low temperatures, long days (Donald K. Barnes, USDA) | ''Genetic abnormality'' : white leaf spotting induced, low temperatures, long days (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : mottled leaf (Donald K. Barnes, USDA) | ''Genetic abnormality'' : mottled leaf (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : white mosaic leaf spotting (Donald K. Barnes, USDA) | ''Genetic abnormality'' : white mosaic leaf spotting (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : golden tip, characterized, chlorosis, newly developed leaves (Donald K. Barnes, USDA) | ''Genetic abnormality'' : golden tip, characterized, chlorosis, newly developed leaves (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : curled leaf (Donald K. Barnes, USDA) | ''Genetic abnormality'' : curled leaf (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : vestigial flower, branched raceme (Donald K. Barnes, USDA) | ''Genetic abnormality'' : vestigial flower, branched raceme (Donald K. Barnes, USDA) | ||
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''Genetic variability'' , seed color: normal (center), tan, black, dark red, mottled, light red mottled seed colors, nonuniform distribution, red endosperm pigment (Donald K. Barnes, USDA) | ''Genetic variability'' , seed color: normal (center), tan, black, dark red, mottled, light red mottled seed colors, nonuniform distribution, red endosperm pigment (Donald K. Barnes, USDA) | ||
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''Genetic abnormalities white (normal), tan, brown roots'' (Donald K. Barnes, USDA) | ''Genetic abnormalities white (normal), tan, brown roots'' (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : red root (Donald K. Barnes, USDA) | ''Genetic abnormality'' : red root (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : cross section, roots showing normal white internal root (left), orange root (Donald K. Barnes, USDA) | ''Genetic abnormality'' : cross section, roots showing normal white internal root (left), orange root (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : stem cuttings showing normal rooting (left), abnormal callus tumor (Donald K. Barnes, USDA) | ''Genetic abnormality'' : stem cuttings showing normal rooting (left), abnormal callus tumor (Donald K. Barnes, USDA) | ||
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''Genetic abnormality'' : excessive root lenticel development, healthy tissue underneath (left), normal root, plant grown, wet soil (Donald K. Barnes, USDA) | ''Genetic abnormality'' : excessive root lenticel development, healthy tissue underneath (left), normal root, plant grown, wet soil (Donald K. Barnes, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD103.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD103.JPG] |
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''Genetic abnormality'' : variability, expression, rough root; normal root, right (Donald K. Barnes, USDA) | ''Genetic abnormality'' : variability, expression, rough root; normal root, right (Donald K. Barnes, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD104.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD104.JPG] |
Line 797: | Line 797: | ||
''Helminthosporium Leaf Spot - Bermuda '' | ''Helminthosporium Leaf Spot - Bermuda '' | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/usdad268.jpg http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_usdad268.jpg] |
Line 811: | Line 811: | ||
''Ineffective nodulation'' (2 plants on left), effective nodulation (2 plants on right) (Barnes) | ''Ineffective nodulation'' (2 plants on left), effective nodulation (2 plants on right) (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR22.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR22.JPG] |
Line 823: | Line 823: | ||
''White ineffective nodules'' (right) and effective nodules (left) (Barnes) | ''White ineffective nodules'' (right) and effective nodules (left) (Barnes) | ||
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Line 835: | Line 835: | ||
''Leaf Spot - Alfalfa Pseudopeziza Jonesii '' | ''Leaf Spot - Alfalfa Pseudopeziza Jonesii '' | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/usdad263.jpg http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_usdad263.jpg] |
Line 847: | Line 847: | ||
''Leaf Spot - Alfalfa Pseudopeziza Medicaginis '' | ''Leaf Spot - Alfalfa Pseudopeziza Medicaginis '' | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/usdad262.jpg http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_usdad262.jpg] |
Line 859: | Line 859: | ||
''Lepto leaf spot'' (Fred Frosheiser) | ''Lepto leaf spot'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR26.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR26.JPG] |
Line 871: | Line 871: | ||
''Neocosmospora vasinfecta perithecia (red) exuding ascospores (orange) on alfalfa stem, water agar'' (Donald L. Stuteville, Kansas State University) | ''Neocosmospora vasinfecta perithecia (red) exuding ascospores (orange) on alfalfa stem, water agar'' (Donald L. Stuteville, Kansas State University) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD079.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD079.JPG] |
Line 887: | Line 887: | ||
''Ineffective plants growing in sand with nil nitrogen (left) compared to effective plants (right)'' (Barnes) | ''Ineffective plants growing in sand with nil nitrogen (left) compared to effective plants (right)'' (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR23.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR23.JPG] |
Line 899: | Line 899: | ||
''Ineffective plants growing in sand with nil nitrogen (right) compared to effective plants (left)'' (Barnes) | ''Ineffective plants growing in sand with nil nitrogen (right) compared to effective plants (left)'' (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR24.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR24.JPG] |
Line 911: | Line 911: | ||
''Ozone damage'' rated 0 (no damage) to 10 (severe damage) (Fred Frosheiser) | ''Ozone damage'' rated 0 (no damage) to 10 (severe damage) (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR30.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR30.JPG] |
Line 923: | Line 923: | ||
''Peanut Mottle Virus - Clover '' | ''Peanut Mottle Virus - Clover '' | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/usdad264.jpg http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_usdad264.jpg] |
Line 935: | Line 935: | ||
''Germinating oospore of Phytophthora medicaginis with zoosporangium'' (Fred Frosheiser) | ''Germinating oospore of Phytophthora medicaginis with zoosporangium'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR38.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR38.JPG] |
Line 947: | Line 947: | ||
''Zoosporangia of Phytophthora medicaginis stained red'' (Fred Frosheiser) | ''Zoosporangia of Phytophthora medicaginis stained red'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR39.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR39.JPG] |
Line 959: | Line 959: | ||
''Phytophthora root rot symptoms in July'' (Fred Frosheiser) | ''Phytophthora root rot symptoms in July'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR36.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR36.JPG] |
Line 971: | Line 971: | ||
''Phytophthora root rot, healthy (left) to most diseased (right)'' (Barnes) | ''Phytophthora root rot, healthy (left) to most diseased (right)'' (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR37.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR37.JPG] |
Line 983: | Line 983: | ||
''Phytophthora root rot, young plants'' (Fred Frosheiser) | ''Phytophthora root rot, young plants'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR35.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR35.JPG] |
Line 995: | Line 995: | ||
''Pseudoplea Leaf Spot - Clover '' | ''Pseudoplea Leaf Spot - Clover '' | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/usdad267.jpg http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_usdad267.jpg] |
Line 1,007: | Line 1,007: | ||
''Effective (eff) rhizobium nodules on alfalfa root, three types, ineffective (in) nodules induced, alfalfa plant genotype'' (Carroll P. Vance, USDA) | ''Effective (eff) rhizobium nodules on alfalfa root, three types, ineffective (in) nodules induced, alfalfa plant genotype'' (Carroll P. Vance, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD107.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD107.JPG] |
Line 1,023: | Line 1,023: | ||
''Rhizoctonia'' (3 plants on right), healthy (3 plants on left) (Barnes) | ''Rhizoctonia'' (3 plants on right), healthy (3 plants on left) (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR46.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR46.JPG] |
Line 1,035: | Line 1,035: | ||
''Rhizoctonia symptoms'' (Barnes) | ''Rhizoctonia symptoms'' (Barnes) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR45.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR45.JPG] |
Line 1,047: | Line 1,047: | ||
''Root knot nematode symptoms '' (left and right), healthy plant (middle) (Fred Frosheiser) | ''Root knot nematode symptoms '' (left and right), healthy plant (middle) (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR29.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR29.JPG] |
Line 1,059: | Line 1,059: | ||
''Root knot nematode'' 12 healthy plants (left), 12 susceptible plants (right) (Fred Frosheiser) | ''Root knot nematode'' 12 healthy plants (left), 12 susceptible plants (right) (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR27.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR27.JPG] |
Line 1,071: | Line 1,071: | ||
''Root knot nematode symptoms'' (Fred Frosheiser) | ''Root knot nematode symptoms'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR28.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR28.JPG] |
Line 1,083: | Line 1,083: | ||
''Root-lesion nematode'' field symptoms (center), healthy plants (left and right) (Deborah Samac) | ''Root-lesion nematode'' field symptoms (center), healthy plants (left and right) (Deborah Samac) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR40.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR40.JPG] |
Line 1,095: | Line 1,095: | ||
''Root-lesion nematode'' symptoms (right) and healthy plant (left) (Theis) | ''Root-lesion nematode'' symptoms (right) and healthy plant (left) (Theis) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR41.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR41.JPG] |
Line 1,107: | Line 1,107: | ||
''Root-lesion nematodes and eggs stained red in alfalfa roots'' (Deborah Samac) | ''Root-lesion nematodes and eggs stained red in alfalfa roots'' (Deborah Samac) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR42.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR42.JPG] |
Line 1,119: | Line 1,119: | ||
''Rust on leaflet, uredinial pustules'' (Donald L. Stuteville, Kansas State University) | ''Rust on leaflet, uredinial pustules'' (Donald L. Stuteville, Kansas State University) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD022.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD022.JPG] |
Line 1,135: | Line 1,135: | ||
''Rust symptoms'' (Fred Frosheiser) | ''Rust symptoms'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR50.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR50.JPG] |
Line 1,147: | Line 1,147: | ||
''Rust symptoms and potato leaf hopper symptoms'' (Fred Frosheiser) | ''Rust symptoms and potato leaf hopper symptoms'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR51.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR51.JPG] |
Line 1,159: | Line 1,159: | ||
''Sclerotim'' Mature (brown) sclerotia (Sclerotium rolfsii) on plant base, Mycelium producing sclerotia progresses up the stem (Donald L. Stuteville, Kansas State University) | ''Sclerotim'' Mature (brown) sclerotia (Sclerotium rolfsii) on plant base, Mycelium producing sclerotia progresses up the stem (Donald L. Stuteville, Kansas State University) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD043.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD043.JPG] |
Line 1,175: | Line 1,175: | ||
''Spring blackstem and leaf spot'' (Fred Frosheiser) | ''Spring blackstem and leaf spot'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR33.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR33.JPG] |
Line 1,187: | Line 1,187: | ||
''Spring blackstem and leaf spot'' (Fred Frosheiser) | ''Spring blackstem and leaf spot'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR34.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR34.JPG] |
Line 1,199: | Line 1,199: | ||
''Stagnospora symptoms on leaf'' (Fred Frosheiser) | ''Stagnospora symptoms on leaf'' (Fred Frosheiser) | ||
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Line 1,211: | Line 1,211: | ||
''Stagnospora symptoms on the crown'' (Fred Frosheiser) | ''Stagnospora symptoms on the crown'' (Fred Frosheiser) | ||
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Line 1,223: | Line 1,223: | ||
''Stem canker, Rhizoctonia solani'' (William G. Willis, Kansas State University) | ''Stem canker, Rhizoctonia solani'' (William G. Willis, Kansas State University) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD035.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD035.JPG] |
Line 1,239: | Line 1,239: | ||
''Stem nematode'' (Fred Frosheiser) | ''Stem nematode'' (Fred Frosheiser) | ||
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Line 1,251: | Line 1,251: | ||
''Stem nematode'' (Fred Frosheiser) | ''Stem nematode'' (Fred Frosheiser) | ||
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Line 1,263: | Line 1,263: | ||
''Stem nematode'' (Fred Frosheiser) | ''Stem nematode'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR14.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR14.JPG] |
Line 1,275: | Line 1,275: | ||
''Stem nematode symptoms in the field (white flagging)'' (Fred Frosheisegr) | ''Stem nematode symptoms in the field (white flagging)'' (Fred Frosheisegr) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR16.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR16.JPG] |
Line 1,287: | Line 1,287: | ||
''Stem nematode on inoculated seedlings'' Resistant plants (left); susceptible plants (right) (Fred Forosheiser) | ''Stem nematode on inoculated seedlings'' Resistant plants (left); susceptible plants (right) (Fred Forosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR15.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR15.JPG] |
Line 1,299: | Line 1,299: | ||
''Stemphylium symptoms'' (Fred Frosheiser) | ''Stemphylium symptoms'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR49.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR49.JPG] |
Line 1,311: | Line 1,311: | ||
''Sulfur dioxide injury'' (Kenneth T. Leath, USDA) | ''Sulfur dioxide injury'' (Kenneth T. Leath, USDA) | ||
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Line 1,327: | Line 1,327: | ||
''Tarspot, Phoma medicaginis'' (Kenneth T. Leath, USDA) | ''Tarspot, Phoma medicaginis'' (Kenneth T. Leath, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD024.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD024.JPG] |
Line 1,343: | Line 1,343: | ||
''Verticillium albo-atrum infected leaflets, v-shaped chlorosis, tip, curling'' (Kenneth T. Leath, USDA) | ''Verticillium albo-atrum infected leaflets, v-shaped chlorosis, tip, curling'' (Kenneth T. Leath, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD064.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD064.JPG] |
Line 1,359: | Line 1,359: | ||
''Verticillium albo-atrum infected leaflets, pinkish necrosis'' (Kenneth T. Leath, USDA) | ''Verticillium albo-atrum infected leaflets, pinkish necrosis'' (Kenneth T. Leath, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD066.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD066.JPG] |
Line 1,375: | Line 1,375: | ||
''Verticillium albo-atrum necrotic leaves infected'' (Kenneth T. Leath, USDA) | ''Verticillium albo-atrum necrotic leaves infected'' (Kenneth T. Leath, USDA) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF/AFD067.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/CROP_PH/LEGUMES/ALF_TH/tn_AFD067.JPG] |
Line 1,389: | Line 1,389: | ||
''Verticillium wilt crown symptoms'' (Fred Frosheiser) | ''Verticillium wilt crown symptoms'' (Fred Frosheiser) | ||
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Line 1,401: | Line 1,401: | ||
''Verticillium wilt foliar symptoms'' (Fred Frosheiser) | ''Verticillium wilt foliar symptoms'' (Fred Frosheiser) | ||
− | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/ | + | [http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD/ALF_CR53.JPG http://agwiki.org/mediawiki/AE_IMAGES/CROPPH/99ADD_TH/tn_ALF_CR53.JPG] |
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''Verticillium wilt foliar symptoms'' (Fred Frosheiser) | ''Verticillium wilt foliar symptoms'' (Fred Frosheiser) | ||
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''Violet root rot fungus (Rhizoctonia crocorum) on crown/root'' (William G. Willis, Kansas State University) | ''Violet root rot fungus (Rhizoctonia crocorum) on crown/root'' (William G. Willis, Kansas State University) | ||
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''Yellow leaf blotch early symptoms'' (William G. Willis, Kansas State University) | ''Yellow leaf blotch early symptoms'' (William G. Willis, Kansas State University) | ||
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Latest revision as of 08:51, 13 March 2016
Alfalfa Pest and Nutritional Disorder Photos
Contents
- 1 Agrobacterium_tumefaciens
- 2 Alfalfa_mosaic_virus
- 3 Alfalfa_mosaic_virus
- 4 Alfalfa_mosaic_virus
- 5 Alfalfa_stem_nematode_2
- 6 Alfalfa_stem_nematode_damage
- 7 Alfalfa_stem_nematode_damage
- 8 Anthracnose_-_Sorghum
- 9 Aphanomyces_root_rot
- 10 Ascochyta_Rough_Spot_-_Sorghum
- 11 Bacterial_leaf_spot
- 12 Bacterial_leaf_spot
- 13 Bacterial_leaf_spot_1
- 14 Bacterial_leaf_spot_2
- 15 Bacterial_leaf_spot_3
- 16 Bacterial_wilt
- 17 Bacterial_wilt_symptoms
- 18 Bacterial_wilt_symptoms
- 19 Blister_beetle_on_alfalfa
- 20 Calonectria_crotalariae
- 21 Cercospora_leaf_spot
- 22 Cercospora_on_leaves
- 23 Cercospora_on_stems
- 24 Common_leaf_spot
- 25 Common_leaf_spot
- 26 Common_leaf_spot_1
- 27 Common_leaf_spot_3
- 28 Dodder
- 29 Downy_mildew
- 30 Downy_mildew_1
- 31 Downy_mildew_2
- 32 Downy_mildew_3
- 33 Downy_mildew_in_the_field
- 34 Foliar_tolerance
- 35 Frost_injury
- 36 Frost_injury
- 37 Fusarium_wilt
- 38 Fusarium_wilt
- 39 Fusarium_wilt_(left)_and_bacterial_wilt_(right)
- 40 Genetic_abnormailty_12
- 41 Genetic_abnormailty_15
- 42 Genetic_abnormality_00
- 43 Genetic_abnormality_01
- 44 Genetic_abnormality_02
- 45 Genetic_abnormality_03
- 46 Genetic_abnormality_04
- 47 Genetic_abnormality_05
- 48 Genetic_abnormality_06
- 49 Genetic_abnormality_07
- 50 Genetic_abnormality_08
- 51 Genetic_abnormality_09
- 52 Genetic_abnormality_10
- 53 Genetic_abnormality_11
- 54 Genetic_abnormality_13
- 55 Genetic_abnormality_14
- 56 Helminthosporium_Leaf_Spot_-_Bermuda
- 57 Ineffective_nodulation
- 58 Ineffective_nodules
- 59 Leaf_Spot_-_Alfalfa_Pseudopeziza_Jonesii
- 60 Leaf_Spot_-_Alfalfa_Pseudopeziza_Medicaginis
- 61 Lepto_leaf_spot
- 62 Neocosmospora_vasinfecta
- 63 Nitrogen_deficiency
- 64 Nitrogen_deficiency
- 65 Ozone_damage
- 66 Peanut_Mottle_Virus_-_Clover
- 67 Phytophthora_medicaginis
- 68 Phytophthora_medicaginis
- 69 Phytophthora_root_rot
- 70 Phytophthora_root_rot
- 71 Phytophthora_root_rot
- 72 Pseudoplea_Leaf_Spot_-_Clover
- 73 Rhizobium_nodules_1
- 74 Rhizoctonia
- 75 Rhizoctonia_symptoms
- 76 Root_knot_nematode
- 77 Root_knot_nematode
- 78 Root_knot_nematode_symptoms
- 79 Root-lesion_nematode
- 80 Root-lesion_nematode
- 81 Root-lesion_nematodes
- 82 Rust_2
- 83 Rust_symptoms
- 84 Rust_symptoms
- 85 Sclerotium_1
- 86 Spring_blackstem_and_leaf_spot
- 87 Spring_blackstem_and_leaf_spot
- 88 Stagnospora_symptoms
- 89 Stagnospora_symptoms
- 90 Stem_canker
- 91 Stem_nematode
- 92 Stem_nematode
- 93 Stem_nematode
- 94 Stem_nematode
- 95 Stem_nematode_on_inoculated_seedlings
- 96 Stemphylium_symptoms
- 97 Sulfur_dioxide_injury
- 98 Tarspot
- 99 Verticillium_albo-atrum_1
- 100 Verticillium_albo-atrum_3
- 101 Verticillium_albo-atrum_4
- 102 Verticillium_wilt
- 103 Verticillium_wilt
- 104 Verticillium_wilt
- 105 Verticillium_wilt
- 106 Violet_root_rot_2
- 107 Yellow_leaf_blotch_1
Agrobacterium_tumefaciens
Agrobacterium tumefaciens Large galls from inoculation of young plants with Agrobacterium tumafaciens (Deborah Samac)
Alfalfa_mosaic_virus
Alfalfa mosaic virus (Fred Frosheiser)
Alfalfa_mosaic_virus
Alfalfa mosaic virus (Fred Frosheiser)
Alfalfa_mosaic_virus
Alfalfa mosaic virus (Fred Frosheiser)
Alfalfa_stem_nematode_2
Alfalfa stem nematode white flagging, Ditylenchus dipsaci (Gerald D. Griffin, USDA)
Alfalfa_stem_nematode_damage
Alfalfa stem nematode damage (H. F. Schwartz; Colorado State University)
Alfalfa_stem_nematode_damage
Alfalfa stem nematode damage (H. F. Schwartz; Colorado State University)
Anthracnose_-_Sorghum
Anthracnose - Sorghum
Aphanomyces_root_rot
Aphanomyces root rot on inoculated seedlings; rating 1 (healthy) to 5 (dead) (Deborah Samac)
Ascochyta_Rough_Spot_-_Sorghum
Ascochyta Rough Spot - Sorghum
Bacterial_leaf_spot
Bacterial leaf spot (Fred Frosheiser)
Bacterial_leaf_spot
Bacterial leaf spot (Fred Frosheiser)
Bacterial_leaf_spot_1
Bacterial leaf spot water-soaked lesions (Donald L. Stuteville, Kansas State University)
Bacterial_leaf_spot_2
Bacterial leaf spot translucent lesions (Donald L. Stuteville, Kansas State University)
Bacterial_leaf_spot_3
Bacterial leaf spot lesions, alfalfa stems 3 weeks after inoculation (Donald L. Stuteville, Kansas State University
Bacterial_wilt
Bacterial wilt root cross sections. Most diseased (top left) to healthy (bottom right) (Barnes)
Bacterial_wilt_symptoms
Bacterial wilt symptoms in the field (front plant) compared to a healthy plant behind (Deborah Samac)
Bacterial_wilt_symptoms
Bacterial wilt symptoms. Healthy plant (left), diseased root section (middle), diseased plant (right) (Barnes)
Blister_beetle_on_alfalfa
Blister beetle on alfalfa (Colorado State University)
Calonectria_crotalariae
Calonectria crotalariae infected alfalfa plant (base and stem) (Donald L. Stuteville, Kansas State University)
Cercospora_leaf_spot
Leaf spot, Cercospora medicaginis (William G. Willis, Kansas State University)
Cercospora_on_leaves
Cercospora on leaves (Fred Frosheiser)
Cercospora_on_stems
Cercospora on stems (Fred Frosheiser)
Common_leaf_spot
Common leaf spot (Fred Frosheiser)
Common_leaf_spot
Commonleaf spot (Fred Frosheiser)
Common_leaf_spot_1
'Common leaf spot (William G. Willis, Kansas State University)
Common_leaf_spot_3
Common leaf spot lesions (magnified view), dentate margins, Pseudopeziza medicaginis apothecia rupturing, host epidermis (William G. Willis, Kansas State University)
Dodder
Dodder (USDA-ARS)
Downy_mildew
Downy mildew (Fred Frosheiser)
Downy_mildew_1
Shoot systemically infected with downy mildew fungus, Peronospora trifoliorum (Kenneth T. Leath, USDA)
Downy_mildew_2
Downy mildew, upper (left), lower (right) surfaces, leaflets (Donald L. Stuteville, Kansas State University)
Downy_mildew_3
Downy mildew fungus oospores (Peronospora trifoliorum), cotyledon stained, sudan iv (Donald L. Stuteville, Kansas State University)
Downy_mildew_in_the_field
Downy mildew in the field (Fred Frosheiser)
Foliar_tolerance
Differences in foliar tolerance, low temperature among spaced plants (Donald L. Stuteville, Kansas State University)
Frost_injury
Frost injury (Barnes)
Frost_injury
Frost injury (Barnes)
Fusarium_wilt
Fusarium wilt in alfalfa roots, cross sections. Healthy (top left) to most diseased (bottom right) (Fred Frosheiser)
Fusarium_wilt
Fusarium wilt in alfalfa roots, longitudinal section (Barnes)
Fusarium_wilt_(left)_and_bacterial_wilt_(right)
Fusarium wilt (left) and bacterial wilt (right) (Barnes)
Genetic_abnormailty_12
Genetic abnormality: taproot tumors (Donald K. Barnes, USDA)
Genetic_abnormailty_15
Genetic abnormality: heavy bark condition, rough root showing lack, functional small roots (Donald K. Barnes, USDA)
Genetic_abnormality_00
Genetic abnormalities : pale green leaves, stem (left), normal green leaves, stem, light red stem, dark red stem (right)(Donald K. Barnes, USDA)
Genetic_abnormality_01
Genetic abnormality : white leaf spotting induced, low temperatures, long days (Donald K. Barnes, USDA)
Genetic_abnormality_02
Genetic abnormality : mottled leaf (Donald K. Barnes, USDA)
Genetic_abnormality_03
Genetic abnormality : white mosaic leaf spotting (Donald K. Barnes, USDA)
Genetic_abnormality_04
Genetic abnormality : golden tip, characterized, chlorosis, newly developed leaves (Donald K. Barnes, USDA)
Genetic_abnormality_05
Genetic abnormality : curled leaf (Donald K. Barnes, USDA)
Genetic_abnormality_06
Genetic abnormality : vestigial flower, branched raceme (Donald K. Barnes, USDA)
Genetic_abnormality_07
Genetic variability , seed color: normal (center), tan, black, dark red, mottled, light red mottled seed colors, nonuniform distribution, red endosperm pigment (Donald K. Barnes, USDA)
Genetic_abnormality_08
Genetic abnormalities white (normal), tan, brown roots (Donald K. Barnes, USDA)
Genetic_abnormality_09
Genetic abnormality : red root (Donald K. Barnes, USDA)
Genetic_abnormality_10
Genetic abnormality : cross section, roots showing normal white internal root (left), orange root (Donald K. Barnes, USDA)
Genetic_abnormality_11
Genetic abnormality : stem cuttings showing normal rooting (left), abnormal callus tumor (Donald K. Barnes, USDA)
Genetic_abnormality_13
Genetic abnormality : excessive root lenticel development, healthy tissue underneath (left), normal root, plant grown, wet soil (Donald K. Barnes, USDA)
Genetic_abnormality_14
Genetic abnormality : variability, expression, rough root; normal root, right (Donald K. Barnes, USDA)
Helminthosporium_Leaf_Spot_-_Bermuda
Helminthosporium Leaf Spot - Bermuda
Ineffective_nodulation
Ineffective nodulation (2 plants on left), effective nodulation (2 plants on right) (Barnes)
Ineffective_nodules
White ineffective nodules (right) and effective nodules (left) (Barnes)
Leaf_Spot_-_Alfalfa_Pseudopeziza_Jonesii
Leaf Spot - Alfalfa Pseudopeziza Jonesii
Leaf_Spot_-_Alfalfa_Pseudopeziza_Medicaginis
Leaf Spot - Alfalfa Pseudopeziza Medicaginis
Lepto_leaf_spot
Lepto leaf spot (Fred Frosheiser)
Neocosmospora_vasinfecta
Neocosmospora vasinfecta perithecia (red) exuding ascospores (orange) on alfalfa stem, water agar (Donald L. Stuteville, Kansas State University)
Nitrogen_deficiency
Ineffective plants growing in sand with nil nitrogen (left) compared to effective plants (right) (Barnes)
Nitrogen_deficiency
Ineffective plants growing in sand with nil nitrogen (right) compared to effective plants (left) (Barnes)
Ozone_damage
Ozone damage rated 0 (no damage) to 10 (severe damage) (Fred Frosheiser)
Peanut_Mottle_Virus_-_Clover
Peanut Mottle Virus - Clover
Phytophthora_medicaginis
Germinating oospore of Phytophthora medicaginis with zoosporangium (Fred Frosheiser)
Phytophthora_medicaginis
Zoosporangia of Phytophthora medicaginis stained red (Fred Frosheiser)
Phytophthora_root_rot
Phytophthora root rot symptoms in July (Fred Frosheiser)
Phytophthora_root_rot
Phytophthora root rot, healthy (left) to most diseased (right) (Barnes)
Phytophthora_root_rot
Phytophthora root rot, young plants (Fred Frosheiser)
Pseudoplea_Leaf_Spot_-_Clover
Pseudoplea Leaf Spot - Clover
Rhizobium_nodules_1
Effective (eff) rhizobium nodules on alfalfa root, three types, ineffective (in) nodules induced, alfalfa plant genotype (Carroll P. Vance, USDA)
Rhizoctonia
Rhizoctonia (3 plants on right), healthy (3 plants on left) (Barnes)
Rhizoctonia_symptoms
Rhizoctonia symptoms (Barnes)
Root_knot_nematode
Root knot nematode symptoms (left and right), healthy plant (middle) (Fred Frosheiser)
Root_knot_nematode
Root knot nematode 12 healthy plants (left), 12 susceptible plants (right) (Fred Frosheiser)
Root_knot_nematode_symptoms
Root knot nematode symptoms (Fred Frosheiser)
Root-lesion_nematode
Root-lesion nematode field symptoms (center), healthy plants (left and right) (Deborah Samac)
Root-lesion_nematode
Root-lesion nematode symptoms (right) and healthy plant (left) (Theis)
Root-lesion_nematodes
Root-lesion nematodes and eggs stained red in alfalfa roots (Deborah Samac)
Rust_2
Rust on leaflet, uredinial pustules (Donald L. Stuteville, Kansas State University)
Rust_symptoms
Rust symptoms (Fred Frosheiser)
Rust_symptoms
Rust symptoms and potato leaf hopper symptoms (Fred Frosheiser)
Sclerotium_1
Sclerotim Mature (brown) sclerotia (Sclerotium rolfsii) on plant base, Mycelium producing sclerotia progresses up the stem (Donald L. Stuteville, Kansas State University)
Spring_blackstem_and_leaf_spot
Spring blackstem and leaf spot (Fred Frosheiser)
Spring_blackstem_and_leaf_spot
Spring blackstem and leaf spot (Fred Frosheiser)
Stagnospora_symptoms
Stagnospora symptoms on leaf (Fred Frosheiser)
Stagnospora_symptoms
Stagnospora symptoms on the crown (Fred Frosheiser)
Stem_canker
Stem canker, Rhizoctonia solani (William G. Willis, Kansas State University)
Stem_nematode
Stem nematode (Fred Frosheiser)
Stem_nematode
Stem nematode (Fred Frosheiser)
Stem_nematode
Stem nematode (Fred Frosheiser)
Stem_nematode
Stem nematode symptoms in the field (white flagging) (Fred Frosheisegr)
Stem_nematode_on_inoculated_seedlings
Stem nematode on inoculated seedlings Resistant plants (left); susceptible plants (right) (Fred Forosheiser)
Stemphylium_symptoms
Stemphylium symptoms (Fred Frosheiser)
Sulfur_dioxide_injury
Sulfur dioxide injury (Kenneth T. Leath, USDA)
Tarspot
Tarspot, Phoma medicaginis (Kenneth T. Leath, USDA)
Verticillium_albo-atrum_1
Verticillium albo-atrum infected leaflets, v-shaped chlorosis, tip, curling (Kenneth T. Leath, USDA)
Verticillium_albo-atrum_3
Verticillium albo-atrum infected leaflets, pinkish necrosis (Kenneth T. Leath, USDA)
Verticillium_albo-atrum_4
Verticillium albo-atrum necrotic leaves infected (Kenneth T. Leath, USDA)
Verticillium_wilt
Verticillium wilt crown symptoms (Fred Frosheiser)
Verticillium_wilt
Verticillium wilt foliar symptoms (Fred Frosheiser)
Verticillium_wilt
Verticillium wilt foliar symptoms (Fred Frosheiser)
Verticillium_wilt
Verticillium wilt in the field (Fred Frosheiser)
Violet_root_rot_2
Violet root rot fungus (Rhizoctonia crocorum) on crown/root (William G. Willis, Kansas State University)
Yellow_leaf_blotch_1
Yellow leaf blotch early symptoms (William G. Willis, Kansas State University)