Zumur

Mechanisms of Action: Decoding the Zumer Formula

The herbicide "Zumer," developed by F.Agan Chemical Manufacturers Ltd., Israel, represents a sophisticated fusion of two distinct chemical classes: glyphosate and oxyfluorfen (a diphenyl ether derivative). This combination is engineered to overcome the limitations of single-active-ingredient treatments by providing both rapid contact necrosis and long-term systemic translocation.

Technical Synergy: Glyphosate vs. Oxyfluorfen

The systemic component, glyphosate, is essential for tackling stubborn perennial weeds. It moves through the phloem to the roots, preventing the amino acid biosynthesis necessary for plant survival. However, systemic action alone is often slow. This is where the contact action of oxyfluorfen comes into play. By disrupting cell membrane integrity, oxyfluorfen acts as a catalyst, providing immediate visible damage to the foliage. This dual-action approach is critical for orchard and vineyard management, where weed competition must be eliminated rapidly and thoroughly.

Operational Guidelines

• Application Crops: Specifically designed for established apple orchards and vineyards. Its broad-spectrum action effectively suppresses both annual and perennial grasses and broad-leaved weeds.
• Formulation and Delivery: Presented as a Suspension Concentrate (SC), the product is formulated to maintain stability within the spray tank, ensuring consistent coverage. The application rate ranges from 3 to 6 liters per hectare, providing flexibility based on the weed pressure intensity.
• Safety and Timing: Zumer is a non-selective, post-emergence herbicide. When applying, precision is paramount; avoid contact with the foliage or green bark of the crops. With a hazard class of 3, the product is manageable under standard agricultural safety protocols.

By limiting the intervention to 1–2 applications per season, Zumer ensures that orchards and vineyards remain clear of invasive vegetation, minimizing nutrient competition and maximizing the yield potential of the primary culture.