Lontrel Grand, WG

When weeds become the primary challenge

In fields dedicated to sugar beets, oilseed rape, onions, or flax, controlling perennial weeds often turns into a long-term battle. When thistles (Cirsium and Sonchus) dominate the area, standard herbicides often fall short. This is where Lontrel Grand, WG comes in—a systemic herbicide based on clopyralid that doesn't just burn the foliage, but destroys the weed right down to its root system.

Practical application scenarios

Agronomists choose this product for post-emergence treatment when crops are well-established and weeds are in their active growth phase. The key advantage of this herbicide is its exceptional selectivity. You can confidently apply it to cereals or vegetable crops without worrying about crop stunting or yield reduction.

• Control of stubborn species: Highly effective against weeds resistant to other herbicides, including Cirsium arvense, Sonchus arvensis, Ambrosia artemisiifolia, Anthemis cotula, and Polygonum convolvulus.
• Systemic action: Clopyralid rapidly penetrates through leaves and translocates to the plant's growing points, shutting down the root system. This makes it an essential tool for field preparation, as weed patches are cleared for a long duration.
• Ease of use: The water-dispersible granule formulation dissolves easily in tank mixes, does not dust, and requires no specialized equipment for preparation.

Important agronomic considerations

When applying Lontrel Grand, WG, it is crucial to remember it is a post-emergence herbicide. Peak efficacy is achieved with a single application at the recommended rates (0.12–0.66 kg/ha depending on infestation). Observe the pre-harvest interval of 60 days. While the product is classified under hazard class 3, ensure weather conditions are optimal during application—avoid strong winds and rainfall shortly after to allow maximum uptake of the active ingredient by the weeds.