Bacterial Testing |
Method |
| Pantoea ananatis pv. ananatis | Dilution plating |
| Pseudomonas marginalis pv. marginalis | Dilution plating |
| Pseudomonas syringae pv. porri | Dilution plating |
| Pseudomonas syringae pv. syringae | Dilution plating |
| Pseudomonas viridiflava | Dilution plating |
| Xanthomonas axonopodis pv. alli | Dilution plating |
Available Tests on Onion
Fungal Testing |
Method |
| Alternaria porri | Blotter |
| Aspergillus niger | Blotter |
| Botrytis aclada | Agar plating |
| Botrytis allii | Agar plating |
| Botrytis byssoidea | Agar plating |
| Botrytis squamosa | Agar plating |
| Colletotrichum dematium | Blotter |
| Diaporthe phaseolorum var. cojas | Blotter |
| Diaporthe phaseolorum var. sojae | Blotter |
| Glomus iintraradices (Rhizophagus irregularis) | Agar plating |
| Peronospora destructor | Seed wash microscopy |
| Phomopsis longicolla | Blotter |
| Pleospora harbarum | Blotter |
| Puccinia allii | Seed wash microscopy |
| Urocystis cepulae | Seed wash microscopy |
| Urocystis magica | Seed wash microscopy |
| Verticillium dahliae | Freeze blotter |
Other Testing |
Method |
| Aphelenchoides fragariae | Baermann funnel |
| Ditylenchus dipsaci | Baermann funnel |
| Aster yellows (Phytoplasma) | PCR |
Have a Specific Testing Request?
Contact us if you need a test not listed above—we’re here to help.
