| Image |
Descriptor |
Description |
Photographer |
| 5360001 |
Field |
View of onion field showing relative resistance of two varieties of onion to Iris Yellow Spot Virus - the variety "Sterling" is on the left and "Granero" on the right. |
Howard F. Schwartz |
| 5365663 |
Field |
A field of onions infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367586 |
Field |
A volunteer onion plant in a field corn field showing symptoms of Iris Yellow Spot Virus infection. |
Howard F. Schwartz |
| 5365668 |
Infestation |
A field of onions severely damaged by infection with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5365665 |
Infestation |
Onion plants severely infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5358570 |
Management |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358571 |
Management |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358572 |
Management |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358573 |
Management |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5367574 |
Plant(s) |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in an alfalfa field. |
Howard F. Schwartz |
| 5367581 |
Plant(s) |
Weeds and volunteer onion plants adjacent to an agricultural field, a potential reservoir for Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367582 |
Plant(s) |
Weeds and volunteer onion plants, a potential reservoir for Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367583 |
Plant(s) |
Weeds and volunteer onion plants adjacent to agricultural fields - a potential reservoir for Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367584 |
Plant(s) |
Weeds and volunteer onion plants adjacent to agricultural fields - a potential reservoir for Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367585 |
Plant(s) |
Volunteer onion plant in field corn, showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367587 |
Plant(s) |
Volunteer onion plant in field corn, showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367591 |
Plant(s) |
Volunteer onion plant in a field of carrots, a potential reservoir for the Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367592 |
Plant(s) |
Volunteer onion plant in a field of carrots, a potential reservoir for the Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367593 |
Plant(s) |
Volunteer onion plant in a field of carrots, a potential reservoir for the Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367594 |
Plant(s) |
Volunteer onion plant in a field of carrots, a potential reservoir for the Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5358574 |
Research |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358575 |
Research |
Experimental use of straw mulch as a management technique against thrips in onion plots researching Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358576 |
Research |
Onion seedlings in an experimental plot using straw mulch as a management technique against thrips in research on Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5358577 |
Research |
Onion seedlings in an experimental plot using straw mulch as a management technique against thrips in research on Iris Yellow Spot Virus (IYSV), 2004. |
Howard F. Schwartz |
| 5359800 |
Research |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
| 5359801 |
Research |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
| 5359802 |
Research |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
| 5359803 |
Research |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
| 5359804 |
Research |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
| 5358524 |
Research |
David Gent doing an ELISA test in the laboratory to identify the presence of Iris Yellow Spot Virus on imported seedling transplants of onions (spring 2004) |
Howard F. Schwartz |
| 5358525 |
Research |
Preparation of tissues for an ELISA test in the laboratory to identify the presence of Iris Yellow Spot Virus on imported seedling transplants of onions (spring 2004) |
Howard F. Schwartz |
| 5358526 |
Research |
Preparation of tissues for an ELISA test in the laboratory to identify the presence of Iris Yellow Spot Virus on imported seedling transplants of onions (spring 2004) |
Howard F. Schwartz |
| 5358520 |
Research |
Soil sampling in a multidisciplinary geospatial research project in the fall of 2003. |
Howard F. Schwartz |
| 5358521 |
Research |
Soil sampling in a multidisciplinary geospatial research project in the fall of 2003. |
Howard F. Schwartz |
| 5360004 |
Research |
Study plot used in a 2003 variety trial testing relative resistance to Iris Yellow Spot Virus, Eaton, Colorado. |
Howard F. Schwartz |
| 5360005 |
Research |
Onion plants in research study conducted in 2003 on varietal resistance to Iris Yellow Spot Virus, Eaton, Colorado. |
Howard F. Schwartz |
| 5360006 |
Research |
Onion plants in research study conducted in 2003 on varietal resistance to Iris Yellow Spot Virus, Eaton, Colorado. |
Howard F. Schwartz |
| 5360007 |
Research |
Onion plants in research study conducted in 2003 on varietal resistance to Iris Yellow Spot Virus, Eaton, Colorado. |
Howard F. Schwartz |
| 5367596 |
Sampling |
Sampling soil for geospatial testing during research on Iris Yellow Spot Virus in onions. |
Howard F. Schwartz |
| 5359984 |
Site |
Field of onions with plots marked for research on Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367579 |
Survey |
David Gent, scouting an alfalfa field, finds a volunteer onion plant infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367580 |
Survey |
Jillian Lang, scouting an alfalfa field, finds a volunteer onion plant infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367589 |
Survey |
David Gent and Jillian Lang, scouting a field of corn for volunteer onion plants that could be harboring Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367590 |
Survey |
David Gent, scouting a field of corn for volunteer onion plants that could harbor Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5367588 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on a volunteer onion plant in a corn field. |
Howard F. Schwartz |
| 5367575 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in an alfalfa field. |
Howard F. Schwartz |
| 5367576 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in an alfalfa field. |
Howard F. Schwartz |
| 5367577 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in an alfalfa field. |
Howard F. Schwartz |
| 5367578 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in an alfalfa field. |
Howard F. Schwartz |
| 5365669 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365670 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365671 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365672 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5367565 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367566 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant in a dry bean field. |
Howard F. Schwartz |
| 5367567 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367568 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367569 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367570 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367571 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367572 |
Symptoms |
Symptoms of Iris Yellow Spot Virus found in a volunteer onion plant. |
Howard F. Schwartz |
| 5367573 |
Symptoms |
A volunteer onion plant with symptoms of Iris Yellow Spot Virus (IYSV) infection in the field. |
Howard F. Schwartz |
| 5359985 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359986 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359987 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359988 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359989 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359990 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359991 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359992 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359993 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359994 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359995 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359996 |
Symptoms |
Onion leaves showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359997 |
Symptoms |
Onion leaves showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359998 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359999 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359783 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359784 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359785 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359786 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359787 |
Symptoms |
A field onion plant showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359788 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359789 |
Symptoms |
A field onion plant showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359790 |
Symptoms |
A field onion plant leaf showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359791 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359792 |
Symptoms |
Field onion plants showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359793 |
Symptoms |
Field onion plant leaves showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359794 |
Symptoms |
A field onion plant leaf showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359795 |
Symptoms |
A field onion plant leaf showing symptoms caused by the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359796 |
Symptoms |
Field onion plants showing symptoms of the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359797 |
Symptoms |
Field onion plants showing symptoms of the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5359798 |
Symptoms |
Field onion plants showing symptoms of the Iris Yellow Spot Virus (IYSV). |
Howard F. Schwartz |
| 5362048 |
Symptoms |
Onion straw mulch, Iris Yellow Spot Virus, Insect, Thrips |
Howard F. Schwartz |
| 5362050 |
Symptoms |
Onion straw mulch, Iris Yellow Spot Virus, Insect, Thrips |
Howard F. Schwartz |
| 5362052 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus, vectored by thrips. |
Howard F. Schwartz |
| 5362054 |
Symptoms |
Onion plants showing symptoms of Iris Yellow Spot Virus, vectored by thrips. |
Howard F. Schwartz |
| 5365619 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365620 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365621 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365622 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365623 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365624 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365625 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365626 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365627 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365628 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365629 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365630 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5365631 |
Symptoms |
Symptoms of Iris Yellow Spot Virus on onions, vectored by thrips. |
Howard F. Schwartz |
| 5358522 |
Symptoms |
Imported seedling transplant infected with Iris Yellow Spot Virus (spring 2004). |
Howard F. Schwartz |
| 5358523 |
Symptoms |
Imported seedling transplant infected with Iris Yellow Spot Virus (spring 2004). |
Howard F. Schwartz |
| 2200065 |
Symptoms |
Symptoms on bulb onion |
Whitney Cranshaw |
| 2200066 |
Symptoms |
Symptoms on bulb onion |
Whitney Cranshaw |
| 5303063 |
Symptoms |
Characteristic angular leaf lesion |
Whitney Cranshaw |
| 5303064 |
Symptoms |
Showing extensive leaf lesions on heavily affected plant. |
Whitney Cranshaw |
| 5303067 |
Symptoms |
Showing extensive leaf lesions on heavily affected plant |
Whitney Cranshaw |
| 5303068 |
Symptoms |
Leaf lesions |
Whitney Cranshaw |
| 5360002 |
Symptoms |
View of onion field (variety "Sterling") infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5360003 |
Symptoms |
View of onion field (variety "Granero") infected with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5365666 |
Symptoms |
Field of onions severely damaged by infection with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5365667 |
Symptoms |
Field of onions severely damaged by infection with Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5365664 |
Symptoms |
Field of onions severely damaged by an infestation of Iris Yellow Spot Virus. |
Howard F. Schwartz |
| 5359799 |
Treatment |
Field onion plants during the 1999 Iris Yellow Spot Virus (IYSV) variety trial at Ault. |
Howard F. Schwartz |
