SPEKA

Efficient Desiccation and Weed Control

«Speka» is a specialized solution designed for agronomists managing sunflower crops. Based on diquat, this product serves two primary purposes: acting as a non-selective herbicide to manage annual broadleaf weeds and functioning as a powerful desiccant to prepare crops for harvest. Manufactured by «Nanjing Essence Fine-Chemical Co., Ltd.» (China), this product is engineered to deliver quick, measurable results in the field.

Why agronomists rely on «Speka»

• Rapid Contact Action: As a contact-based product, it starts working immediately upon contact with green tissue, causing rapid dehydration of plant cells.
• Harvest Optimization: «Speka» acts as a drying agent, standardizing moisture levels in sunflower seeds. This is crucial during adverse autumn weather, allowing for harvesting to begin 7–10 days earlier than naturally expected.
• Field Efficiency: By effectively killing weeds that often clog combine headers, the product reduces machinery downtime and minimizes harvest losses.

The product is supplied as a water-soluble concentrate, ensuring easy tank-mixing and uniform coverage across the leaf surface. It is classified under hazard class 3, requiring standard safety precautions during handling and application.

Practical Application Tips

«Speka» effectiveness is strictly dependent on direct contact with the foliage. Therefore, high-quality application technology is essential to ensure full coverage. The optimal timing for application is when sunflower seeds have reached the browning stage and moisture content is approximately 30–35%. Applying the product at this stage helps prevent fungal infections on sunflower heads during maturation by ensuring rapid drying.