| 5458613 |
rose rosette disease |
Uncharacterised agent RRD |
Witches' broom of rose rosette disease with bright red shoots emerging in the spring. |
| 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 |
| 0002057 |
rose bud and flower mite |
Phyllocoptes fructiphilus |
dorsal shield of female showing the distinctive pattern that identifies this mite as seen by the Scanning Electron Microscope |
| 5224018 |
crown gall |
Rhizobium radiobacter |
|
| 5224020 |
crown gall |
Rhizobium radiobacter |
|
| 5223041 |
crown gall |
Rhizobium radiobacter |
|
| 5223042 |
crown gall |
Rhizobium radiobacter |
|
| 5223043 |
crown gall |
Rhizobium radiobacter |
|
| 1482004 |
cottony cushion scale |
Icerya purchasi |
collected on multiflora rose, 20 July 1986 |
| 1330065 |
rose rosette disease |
Uncharacterised agent RRD |
Martin County, KY |
| 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 |
| 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) |
| 0002053 |
rose rosette disease |
Uncharacterised agent RRD |
Witches' broom of rose rosette disease (yellow stems), heavily affected by powdery mildew |
| 0002056 |
rose bud and flower mite |
Phyllocoptes fructiphilus |
ventral surface near head end as seen by the Scanning Electron Microscope; the mite is about 50 microns wide at the genital coverflap |
| 0580052 |
rose rosette disease |
Uncharacterised agent RRD |
map of known distribution in the USA |
