Biochemistry

Photosynthetic electron transport inhibitor at the photosystem II receptor site. Maize tolerance is attributed to rapid detoxification by glutathione transferases.

Mode of action

Selective systemic herbicide, absorbed principally through the roots, but also through the foliage, with translocation acropetally in the xylem and accumulation in the apical meristems and leaves.

Uses

Pre- and post-emergence control of annual broad-leaved weeds and annual grasses in maize, sorghum, sugar cane, pineapples, chemical fallow, grassland, macadamia nuts, conifers, and industrial weed control. Used also in combinations with many other herbicides.

Phytotoxicity

Phytotoxic to many crops, including most vegetables, potatoes, soya beans, and peanuts.

Biochemistry

Photosynthetic electron transport inhibitor at the photosystem II receptor site

Mode of action

Selective systemic herbicide, absorbed by the leaves and roots, with translocation acropetally in the xylem, and accumulation in the apical meristems.

Uses

Pre- and post-emergence control of most annual grasses and broad-leaved weeds in pineapples, sugar cane, bananas, citrus fruit, maize, cassava, coffee, tea, sisal, cocoa, oil palms, and on non-crop land. Application rates are in the range 2-4 kg/ ha , except when used as a directed spray on maize. Also used as a potato haulm desiccant.

Phytotoxicity

Some sugar cane varieties show temporary chlorosis and scorching of lower leaves.