Lindsey du Toit's Images
Title: Associate ProfessorOrganization: Washington State University
Unit: Plant Pathology
Country: United States
Web: http://
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| 13 Images of 3 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5472602 | aster yellows phytoplasma | Candidatus Phytoplasma asteris | Onion umbel infected with the aster yellows phytoplasma (left) compared with a healthy umbel (right), after opening of the spathe but prior to opening of the flowers in an onion seed crop in central Washington State. |
| 5472600 | aster yellows phytoplasma | Candidatus Phytoplasma asteris | Distorted flowers emerging from an immature onion umbel infected with the aster yellows phytoplasma (left) compared to a healthy onion umbel of the same maturity. |
| 5472601 | aster yellows phytoplasma | Candidatus Phytoplasma asteris | Distorted flowers emerging from an immature onion umbel infected with the aster yellows phytoplasma. |
| 5440230 | root rot/damping off | Rhizoctonia spp. | 'Spear-tipping' of onion roots associated with infection by Rhizoctonia species. |
| 5440172 | root rot/damping off | Rhizoctonia spp. | Severe stunting in an onion bulb crop associated with Rhizoctonia infection of seedlings. |
| 5439654 | root rot/damping off | Rhizoctonia spp. | Dematiaceous (dark) hyphae of Rhizoctonia on an onion seedling. Photo taken with a dissecting microscope at 12x magnification. |
| 5439655 | root rot/damping off | Rhizoctonia spp. | Dematiaceous hyphae of Rhizoctonia on an onion seedling. Photo taken with a dissecting microscope camera at 38x magnification. |
| 5439653 | root rot/damping off | Rhizoctonia spp. | Stunted patch in an onion bulb crop. |
| 5435810 | Botrytis leaf blight | Botrytis squamosa | |
| 5435811 | Botrytis leaf blight | Botrytis squamosa | |
| 5435812 | Botrytis leaf blight | Botrytis squamosa | |
| 5435813 | Botrytis leaf blight | Botrytis squamosa | |
| 5435814 | Botrytis leaf blight | Botrytis squamosa |
