Leafdrop v.r.k., (Dicquat 150 g/l)

Managing Sunflower Desiccation: Field Experience with «Listopad»

When harvest time approaches, the priority is to standardize seed moisture and stop the progression of head diseases. This season, we relied on «Listopad» (150 g/l Diquat) manufactured by Zhejiang Agrin Company Ltd. This is a contact-type herbicide, meaning it acts exactly where it hits, drying the green mass effectively without systemic translocation.

Operational Insights

The product comes as a water-soluble concentrate, which is easy to handle during tank mixing. Since it is a non-selective contact herbicide, coverage quality is paramount. Whether using aerial application or ground sprayers, the nozzle calibration must ensure uniform droplets to avoid leaving green patches in the field. When applying via leaf spraying, we noticed that it works exceptionally well in bright, sunny conditions, which accelerates the desiccation process.

Performance and Efficiency

• Speed of Action: The wilting effect is visible within days, significantly speeding up the drying of the plant canopy.
• Harvest Optimization: By drying the stalks and heads, the combine moves through the field much more efficiently, reducing mechanical strain and harvest losses.
• Ease of Handling: As a Class 3 hazard material, it requires standard protective equipment but remains a highly predictable tool for farm operators.

The product from Zhejiang Agrin Company Ltd. delivers consistent concentration and performance. We encountered no issues with filter clogging or poor solubility, making it a reliable choice for field operations. For best results, operators should time the application carefully to ensure the herbicide has sufficient days of sunlight before anticipated rainfall. It effectively turns green, wet sunflowers into ready-to-thresh crops, making the logistical side of harvest significantly smoother.