It is a known fact that the Ministry of Agriculture and Rural Development has withdrawn all glyphosate-based plant protection products containing polyethoxylated tallow amine as a formulation component.
This decision is the consequence of the Implementing Regulation of the European Commission (EU) no. 2016/1313 of 1 August 2016 stating in Article 1 that “Member States shall ensure that plant protection products containing glyphosate do not contain the co-formulant POE-tallow amine (CAS No 61791-26-2).”
Following its withdrawal, tallow amine was substituted in the European Union by three main booster groups: alkyl phosphate ester (APE), alkyl polyglycoside (APG), and alkyl betaine (AB).
Compared to the old tallow amine, these boosters differ significantly in terms of weed control efficacy. The situation where all generics worked in a very similar way (depending on the quantity of the booster in the formulation) is now a thing of the past. Currently, the products differ both in the type of adjuvant and its quantity. These differences have a significant impact on the weed control results.
To clearly explain the differences in the effectiveness of the new boosters to users, Monsanto has decided to conduct impartial effectiveness testing. An independent research company was hired to carry out a professional experiment under field conditions.
For the purpose of the experiment, 9 formulations available in the EU, were compared to Roundup, with 6 products based on alkyl phosphate esters (APE), 2 products based on alkyl betaine (Betaine), and 1 product based on alkyl polyglycoside (APG). All products were POE-tallowamine-free, with different concentration levels of glyphosate in the form of IPA salt (360 g/L – 490 g/L). Monsanto’s product was the only one based on potassium salt.
The effectiveness of the products was tested on self-sown rape, with a very uniform coverage of the field area. Spraying was done on September 11 in the 4th leaf phase, when the plants were 15-20 cm high. The same dose was used for all formulations, i.e. 540 g of glyphosate per 1 hectare.
To ensure the objectivity of the assessments, researchers decided to use the vegetation index (NDVI), determined by a multispectral camera supported by a drone.
NDVI determines plant health by measuring the reflectance of red and infrared light. In practice, this means that the more red there is, the more effective the product.
In the images, you can see the differences in the effectiveness of the tested products, captured with a standard camera (image visible to the human eye) and a multispectral camera (digital image converted to NDVI).
32 days after the treatment, significant differences were seen in the effectiveness of each formulation. As you can see, Roundup was the most effective. This confirms Monsanto’s four decades of experience in developing top quality glyphosate-based formulations. Staring with the introduction of Transorb® technology, Monsanto has been consistently improving subsequent generations of its products.
The products in the Roundup family not only ensure highly effective weed control, but also offer a new quality of glyphosate use: excellent performance even under unfavorable weather conditions in a temperature range of 00C to 300C; short interval between spraying and cultivation; one hour between application and rain without affecting performance; easy to use; droplets with a lesser tendency to drift; many application possibilities with a broad label and ease of safe use.
We hope that an understanding of the current situation on the glyphosate market will allow you to consciously choose the most effective solution and ensure optimal use of the invested funds.
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