Contador 20%

Systemic Pest Control: Technical Overview of Kontador 20%

The efficacy of the insecticide "Kontador 20%" by Nertus is rooted in the properties of imidacloprid, a key representative of the neonicotinoid chemical class. Unlike contact-only poisons, this product functions through systemic penetration: after spraying, the active ingredient is absorbed by the plant and distributed throughout its vascular system. This is critical for protecting fast-growing crops like potatoes or apples, ensuring that new foliage also receives a protective dose of the insecticide.

Mechanism of Action and Pharmacokinetics

Imidacloprid targets the nicotinic acetylcholine receptors in the insect nervous system. By blocking nerve impulse transmission, the agent causes paralysis, convulsions, and eventually death in pests. Key technical advantages include:

• Extended Protection: Due to high mobility within plant tissues, "Kontador 20%" provides protection for 20–30 days, significantly reducing the number of required treatments.
• Suspension Concentrate: This formulation ensures optimal stability of the spray solution, uniform coverage of leaf surfaces, and high resistance to wash-off by precipitation.
• Broad Spectrum Control: Systemic activity allows for effective management of both externally feeding pests (Colorado potato beetle, cereal leaf beetle) and those that are hidden or sap-sucking (aphids, thrips, leafhoppers).

Practical Application Guidelines

When using the product, it is essential to follow the Nertus technical guidelines: the maximum application rate is 0.5 L/ha. The product is intended for a single application during the growing season. In conditions of moderate to high pest density, the systemic approach of "Kontador" minimizes the risk of crop loss, as activity begins immediately upon contact or ingestion of treated plant tissues. Adherence to the 3rd hazard class safety protocols requires standard personal protective equipment, and the 20–30 day pre-harvest interval ensures high-quality, residue-free produce.