TWIGAMETHALIN is a broad-spectrum selective residual herbicide for the control of many annual grasses and annual broad-leaved weeds in wheat, rice and barley. It is absorbed through the roots of the weeds as they germinate/emerge and the leaves of weeds that are already present. The affected plant dies shortly after germination or following emergence from the soil. It works by inhibiting cell division and cell multiplication. Gramoxone kills all green vegetation by contact action. It does not affect the brown mature back of trees.

TWIGAMETHALIN is a broad-spectrum selective residual herbicide for the control of many annual grasses and annual broad-leaved weeds in wheat, rice and barley. It is absorbed through the roots of the weeds as they germinate/emerge and the leaves of weeds that are already present. The affected plant dies shortly after germination or following emergence from the soil. It works by inhibiting cell division and cell multiplication. Gramoxone kills all green vegetation by contact action. It does not affect the brown mature back of trees.

Topcane 700 WG uptake is via roots. Topcane 700 WG works through the inhibition of photosystem II. This is by the destruction of chlorophyll and carotenoids leading to chlorosis (yellowing), and the formation of free radicals that destroy cell membranes, causing necrosis and death. The herbicide does not prevent the emergence of weeds, but action is manifested once the plant begins to rely on photosynthesis. Symptoms appear first on older bigger leaves that consume more water. The spectrum of activity.