| 1572870 |
black spot |
Alternaria brassicicola |
Leaf spot on cabbage caused by Alternaria brassicicola or A. brassicae. April 1997? |
| 1572861 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572862 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572859 |
black spot |
Alternaria brassicicola |
Leaf spot on cabbage caused by Alternaria brassicicola or A. brassicae. April 1997 |
| 5473913 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Culture margin; one-month post plating |
| 5473915 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Gross morphology of culture surface; one-month post plating
In vitro |
| 1571929 |
downy mildew |
Peronospora destructor |
Abundant sporulation of Peronospora destructor on onion leaf. February 1996 |
| 5426756 |
anthracnose |
Colletotrichum spp. |
|
| 1563691 |
edema |
|
Cross section through an edema blister on the surface of a root. Notice the enlarged, colorless cells forming the blister that easily ruptures and turn black when colonized by microbes (Feb92, cv.Jewel)
|
| 1563683 |
edema |
|
Photomicrograph showing enlarged cells in a blister. |
| 5393157 |
black Sigatoka disease |
Mycosphaerella fijiensis |
sporodochium, conidia, close-up; microscope, fresh tissue; Musa x 'Williams' |
| 5337077 |
Ascochyta fungi |
Ascochyta spp. |
|
| 5383189 |
brown spot |
Alternaria alternata |
Dark mass of conidia |
| 5383190 |
brown spot |
Alternaria alternata |
Lesions on pumpkin |
| 5357457 |
crown rust |
Puccinia coronata |
Close-up view of aecia and pycnia of crown rust of oat (Puccinia coronata) on a leaf of its alternate host, common buckthorn (Rhamnus cathartica). |
| 5366820 |
apple scab |
Venturia inaequalis |
Close-up view of apple scab (Venturia inaequalis) on a crabapple leaf. |
| 5366790 |
Marssonina blight of poplar |
Marssonina populi |
Close-up view of Marssonina blight (Marssonina populi) on an aspen leaf. |
| 5366791 |
Marssonina blight of poplar |
Marssonina populi |
Close-up view of Marssonina blight (Marssonina populi) on an aspen leaf. |
| 5365351 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365348 |
dry bean rust |
Uromyces appendiculatus |
Pycnia of rust (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5365347 |
dry bean rust |
Uromyces appendiculatus |
Rust pycnium (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5358870 |
Floury leaf spot |
Mycovellosiella phaseoli |
Bean leaves displaying symptoms of floury leaf spot (Mycovellosiella phaseoli) in Colombia. |
| 5357178 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of a pycnium and an aecium of bean rust (Uromyces appendiculatus). |
| 5357627 |
Phoma blights |
Phoma spp. |
Close-up view of a bean stem displaying symptoms of Phoma leaf spot (Phoma sp.). |
| 5357624 |
bean anthracnose |
Colletotrichum lindemuthianum |
Close-up view of a bean leaf petiole, displaying symptoms of bean anthracnose (Colletotrichum lindemuthianum). |
| 5357623 |
bean angular leaf spot |
Phaeoisariopsis griseola |
Close-up view of the symptoms of angular leaf spot disease (Phaeoisariopsis griseola) in dry beans. |
| 5367338 |
powdery mildew |
Leveillula taurica |
Close-up view of powdery mildew (Leveillula taurica) on onion leaves. |
| 5366488 |
onion rust |
Puccinia allii |
Evidence of Puccinia porri (P. allii), a rust infecting onions. |
