Lontgrand

Targeted Control of Hard-to-Kill Weeds

The efficacy of "Lontgrand" relies on Clopyralid, an active ingredient from the pyridine carboxylic acid family. Unlike contact herbicides that merely burn off the foliage, this systemic herbicide translocates through the plant tissues to reach the roots and growing points. This capability is vital for managing deep-rooted perennial weeds like Canada thistle (Cirsium arvense) and field sow-thistle, which are known for their ability to regenerate from root fragments.

Mechanism of Action and Selectivity

"Lontgrand" functions as an auxin-mimic herbicide. Upon application, it disrupts the normal hormonal balance within sensitive weeds, leading to uncontrolled cell division and eventual plant decay. Its selective nature ensures it targets problematic species while leaving major crops—such as sugar beets, winter rapeseed, corn, and small grains—untouched. This makes it an essential tool for post-emergence weed management strategies.

Technical Application Specs

• Formulation: Supplied as a water-based solution, ensuring stability in the spray tank and uniform coverage on leaf surfaces.
• Application Method: As a post-emergence (insurance) herbicide, it is best applied during active weed growth, maximizing the absorption of the active ingredient.
• Dosage and Safety: Application rates range from 0.3 to 1 L/ha depending on weed density and species composition. Users must adhere to a 40-day pre-harvest interval (PHI).

Manufactured by "Nanjing Essence Fine-Chemical Co., Ltd" (China), this product is formulated to meet high-grade standards. By addressing difficult targets like ragweed, scentless chamomile, wild buckwheat, and cornflower, "Lontgrand" provides a robust solution for protecting yield potential in intensive agricultural production systems.