Sempra 1L may only be used for weed control in winter wheat, winter barley, winter rye, triticale, spring barley and spring wheat.

Sempra 1L is absorbed through the leaves of the weed and also acts as a contact agent.

When the agent is sprayed out, it forms a film on the soil surface and from here it will be absorbed by the sprouting weeds.

When sprayed late, Sempra 1L can cause white spots on the crop.

The spots disappear within a few days. It does not affect the yield of the crop.

The effect of the treatment is usually seen after 2-5 days, when the weed appears pale and sweaty, or the weed turns white.

New weeds will often sprout normally, later turn white and eventually die out.