BITTER EXTRA

Three-way Synergy: The Science of Bitter Extra

The efficacy of 'Bitter Extra' relies on a balanced combination of three active ingredients: desmedipham, phenmedipham, and ethofumesate. This formulation provides systemic control over a broad range of broad-leaved weeds in fodder and table beet crops. Each component has a specific task: desmedipham and phenmedipham work to inhibit photosynthesis, while ethofumesate provides residual soil action, preventing subsequent germination flushes.

Technical Composition Breakdown

• Desmedipham and Phenmedipham (carbamates): These act as photosynthesis inhibitors. Their synergistic effect allows for the control of weeds even at slightly advanced growth stages, provided they are treated early (before reaching the 2-true-leaf stage).
• Ethofumesate (benzofurans): This is critical for managing stubborn weeds such as cleavers (Galium aparine) and black-bindweed. It creates a soil barrier that prevents weed seeds from establishing.

The emulsifiable concentrate formulation, developed by experts at 'Laboratorios Alcotan S.A.' (Spain) and 'Schirm GmbH' (Germany), ensures superior leaf surface coverage, reducing wash-off risks and increasing the rate of systemic absorption.

Practical Application Standards

Bitter Extra is a post-emergence herbicide that demands precise timing. A split-application strategy (up to 3 treatments per season) is highly recommended. This approach manages the 'waves' of weed emergence common in unpredictable weather conditions. As a herbicide with a Class 3 safety rating, it requires a 30-day pre-harvest interval (PHI).

With an application rate of 1–3 liters per hectare, it targets a wide spectrum of weeds, including common lambsquarters, redroot pigweed, shepherd's purse, and common chickweed. Its systemic mode of action ensures that the active ingredients are translocated throughout the weed’s vascular system, ensuring complete suppression.