Welsh terms for types or instances of plant diseases.

NOTE: This is a set category. It should contain terms for plant diseases, not merely terms related to plant diseases. It may contain more general terms (e.g. types of plant diseases) or more specific terms (e.g. names of specific plant diseases), although there may be related categories specifically for these types of terms.

The following label generates this category: plant diseaseedit. To generate this category using this label, use {{lb|cy|label}}.