James W. Amrine Jr.'s Images
Title: ProfessorOrganization: West Virginia University
Unit: Division of Plant and Soil Sciences, Box 6108
Country: United States
| 16 Images of 5 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 0002055 | rose rosette disease | Uncharacterised agent RRD | diseased stem on left with an enlarged thorny stem; normal stem and flower on right |
| 0002051 | rose rosette disease | Uncharacterised agent RRD | Irregular reddening of leaf caused by rose rosette disease |
| 0002054 | rose rosette disease | Uncharacterised agent RRD | symptomatic inflorescence (red pannicle, accompanied by normal flowers on healthy foliage (a separate plant) |
| 0002067 | rose stem girdler | Agrilus cuprescens | close up of girdle and broken cane |
| 0002066 | rose stem girdler | Agrilus cuprescens | a "flag" caused by the break of a cane at the girdle (August) |
| 0002065 | rose stem girdler | Agrilus cuprescens | girdled cane caused by larva (August); the oviposition site is at the right edge of the girdle; the cane will probably die distal to the girdle |
| 0002064 | rose stem girdler | Agrilus cuprescens | a mating pair on a leaflet (May); the male is the smaller, upper beetle |
| 0002052 | rose rosette disease | Uncharacterised agent RRD | bright red shoots emerging in the spring |
| 0002053 | rose rosette disease | Uncharacterised agent RRD | Witches' broom of rose rosette disease (yellow stems), heavily affected by powdery mildew |
| 0002058 | rose bud and flower mite | Phyllocoptes fructiphilus | dorsal shield of female as seen in the light microscope, using phase contrast microscopy |
| 0002059 | multiflora rose seed chalcid | Megastigmus aculeatus nigroflavus | three females in a dissecting tray; the left female is about 2 mm long |
| 0002060 | multiflora rose | Rosa multiflora | hypanthia or hips |
| 0002061 | multiflora rose | Rosa multiflora | A dissected hip: the soft fruit shell is on the right (typical of mid-November), five normal-sized seed are at the upper left, and three "dwarf" seed, representing unpollinated ovules at the lower left; note the abundant, sharply tapered fibers that are always present in the hip; they irritate the digestive tract of song birds, causing the seed to move quickly through the gut (in just a few hours). |
| 0002062 | multiflora rose seed chalcid | Megastigmus aculeatus nigroflavus | ovipositing female, inserting her ovipositor near the edge of the dried inflorescence |
| 0002063 | multiflora rose seed chalcid | Megastigmus aculeatus nigroflavus | dissected seeds showing larvae and a pupa that were inside (May) |
| 0580052 | rose rosette disease | Uncharacterised agent RRD | map of known distribution in the USA |
