Merpan Vg

Reliable crop protection: Field experience with Merpan WG

When it comes to contact fungicides, understanding how a product performs in real-world conditions is key. Merpan WG from ADAMA is a classic solution for apple orchards and legumes, proven to withstand challenging weather. Its main advantage is reliability: the active ingredient, captan (from the phthalimide class), creates a protective barrier on the surface of leaves and fruit, preventing fungal spores from penetrating the plant tissue.

Operational features

For an agronomist, working with water-dispersible granules is all about convenience. The granules dissolve quickly in the sprayer tank, generate no dust, and do not clog nozzles—a critical factor during high-volume operations.

• Efficacy against scab and rot: On apple trees, this product is a top-tier tool. Preventive application keeps scab under control, provided the treatment schedule is strictly followed.
• Application flexibility: The dosage range of 1.9–2.5 kg/ha allows for precise adjustment of protection intensity based on the actual disease pressure.
• Contact action: It is crucial to remember that this is not a systemic fungicide; coverage quality accounts for 90% of the success. Ensure thorough application to hit every surface.

Practical advice

In crops like soybeans and peas, Merpan WG effectively suppresses the development of anthracnose and ascochytosis. I personally recommend using it in anti-resistance programs; rotating with systemic products yields excellent results and secures higher yields. The maximum allowed number of applications is 3 times per season. Since the product is classified as Hazard Class 2, wearing personal protective equipment while mixing is non-negotiable. Even though it is a contact-only product, it remains a powerful tool in the arsenal of any professional agronomist who knows how to build a smart crop protection strategy.