Trial Report · Plant Growth Regulator

Flumetralin Duo EC

An emulsifiable concentrate that is both locally systemic and contact-acting — for the control of suckers on flue-cured and burley tobacco.

Flumetralin Duo EC product bottle

Product Specification

Active Ingredients
135 g/l Flumetralin
300 g/l N-Decanol
Inert Ingredients
565 g/l
Formulation
Emulsifiable Concentrate (EC)
Target Crop
Flue-cured & burley tobacco

The Trial

Several small-scale tobacco trials were carried out in the 2021/22 and 2022/23 seasons comparing two suckericide options — Flumetralin Duo EC against straight N-Decanol. The application target was the same in both treatments: the sucker bud at the leaf axil. Growing conditions were matched across the comparison.

Sucker Response

Close-ups of the sucker bud the day after each treatment show two very different responses.

Sucker bud after N-Decanol application

N-Decanol

The N-Decanol application has burnt the sucker, leaving open tissue that increases the risk of barn rot during curing.

Sucker bud after Flumetralin Duo EC application

Flumetralin Duo EC

Recommended

The Flumetralin Duo EC application has cleanly distorted the sucker — effective control without the tissue damage that leads to rot.

Whole-Plant Comparison

Plants from each treatment placed side-by-side after the trial. The N-Decanol plant (right) shows continued sucker growth that consumes leaf-quality energy; the Flumetralin Duo EC plant (left) holds cleaner, more compact growth.

Two tobacco plants side by side after suckericide treatment

Key Finding

Flumetralin Duo EC delivers effective sucker control without the tissue burn that N-Decanol leaves behind — reducing barn-rot risk during curing while keeping leaf-quality energy in the primary leaf.