Circule

Technical profile of the 'Tsirkul' insecticide

The 'Tsirkul' insecticide, manufactured by Hangzhou Ruijiang Chemical Co., Ltd., is a specialized contact-action insecticide and acaricide designed for crop protection in winter rape, sunflower, and winter wheat. Formulated as an emulsifiable concentrate (EC), it creates a stable emulsion that adheres well to leaf surfaces, providing uniform distribution and resistance to immediate washout. Its core value lies in the immediate impact on pests upon contact, which is essential for managing outbreaks in high-density fields.

Action mechanics and operational guidelines

The active mechanism involves direct penetration of the insect's cuticle, leading to rapid neurotoxic effects. As a contact-type agent, its effectiveness is highly dependent on application precision. Key technical specifications include:

• Application rate: 0.15–0.4 L/ha, allowing for dosage adjustments based on the severity of the infestation.
• Treatment limit: Maximum of 2 applications, which is a strategic constraint to prevent the development of pest resistance.
• Pre-harvest interval: 20–30 days, essential for regulatory compliance and safety.

Because 'Tsirkul' is classified under Hazard Class 2, safety protocols during mixing and spraying are mandatory. The contact-only mode of action dictates the need for high-quality spraying equipment to ensure full coverage, as the product does not possess systemic translaminar properties. Efficient field performance is best achieved when weather conditions are stable, ensuring the chemical remains on the plant surfaces to intercept target pests effectively.