Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Grading criteria of severity of R. solanacearum.
| Grade | Disease Description |
|---|---|
| DI-0 | No visible symptoms |
| DI-1 | Up to 25% of leaves wilted |
| DI-2 | 25–50% of leaves wilted |
| DI-3 | 50–75% of leaves wilted |
| DI-4 | 75–100% of leaves wilted, the plants always died |
