Molybdenum, like other heavy metals, deactivates viruses by denaturing their protein coat, and in this, molybdenum appears to be a particularly effective metal/metalloid.

This hardly needs translation. Provide adequate or generous molybdenum to reverse viral infections in plants. To know what is adequate molybdenum in your context you really need a sap analysis to identify what plants are absorbing. Soil tests are useful for molybdenum, but in some cases, molybdenum can show up very low in the soil, yet be at high levels in the plant. The mysteries of biology at work.

This is another case where nutrition management solves problems where are there are no synthetic chemical solutions.

1. Datnoff, L. E., Elmer, W. H., Huber, D. M. & Others. Mineral nutrition and plant disease. (American Phytopathological Society (APS Press), 2007).

2. Verma, H. N. & Verma, G. S. Inhibition of local lesion production by some chemical compounds. Indian Phytopathol 20, 176–178 (1967).