Crop Protection

Iodine-forms can be effective to control fungal or bacterial diseases in plants. Iodide can be oxidized to hypoiodide, effective in disruption of fungal proteins. Formulations releasing molecular iodine on the plant surface can serve to control plant pathogens. Methyl iodide is investigated as an alternative to methyl bromide in applications to the soil as a fumigant.
An iodine containing herbicide is loxynil (4′-hydroxy-3′, 5′-diiodo-benzoic acid). In this organic compound iodine is incorporated in the molecule structure. It is formulated for controlling specific annual broad-leaved weeds, and effective as a post-emergence eradicator of weeds associated with cereals in Europe.