By ing. Krishi Matias A. apostgui, Agronomist for Analyst System. Corteva Agriscience
Although 2,4-dichloro-phenoxyacetic acid (2,4-D) has been used since the beginning of the Green Revolution, in the mid-20th century, its enormous benefits have sometimes been overshadowed by the characteristics of older formulations. . activated this noble a tool with few downsides When applied in areas near sensitive crops.
2,4-D was the second herbicide to be used extensively around the world (the first was MCPA) and is still of great importance in irrigation systems today. broadleaf weed management Whole world. As it presents characteristics such as a very favorable ecotoxicological profile, low toxicity to animals, rapid degradation in both soil and water, relatively low doses of use per hectare, a very broad spectrum of weed control and a complex mode of action . this molecule A very strong herbicide, with little ability to produce resistant species,
What unfolded with the Green Revolution and allowed Malthus’ predictions to be disproved, continues today with continued scientific and technological advances in primary food production. Production systems need to constantly go adapt to new challengeswhich inevitably emerges at a certain point.
The advancement of difficult-to-control weeds has long been a main technical concern of farmers across vast areas of the world, which is why technology development companies have focused on creating alternatives to address the problem.
Corteva Agriscience developed in Argentina, since 2009, the Analyst system for weed control. Which was launched recently and has 3 fundamental pillars to tackle this problem.
the first column is Biotechnological events in staple crops, corn and soybeans, which gives them tolerance to active ingredients that allow them to control or manage tough weeds. refers to the second 2,4-D. new formulation of Which accompanies the system, Analyst Colex-D, which was initially launched on the market in 2016 and which improves on practically all aspects of the previous formulation of the molecule. Finally, but perhaps more important than the previous one, is the third pillar of the system. recommendations for use These new devices, in conjunction with already available technologies, maximize benefits in both weed control efficacy, spray safety, and overall production system stability.
If we focus on the second stage or pillar of the Analyst system, then enormous progress can be listed in terms of formulation technology. Enlist Colex-D is made from a salt that has never been marketed before in other products, 2,4-D choline salt. which, together with a package of adjuvants and coformulants, form what is known as Colex-D Technique.
This formulation technology provides four big advantages If we compare it with all others. Firstly, Colex-D technology significantly reduces the formation of fine droplets upon spraying; And so it significantly reduces the risk of drift by pulling the droplets out of the air. The power of the technology is such that when combined with the recommended air induction nozzles, flow can be reduced Or at 30 m downwind distance the speed of fine droplets increases by 90%.
Another very distinctive feature is that the active ingredient prepared with this technology is practically non-volatile, Therefore, the risk is eliminated that once the product is sprayed correctly, it will go into the gaseous phase and leak out a lot, damaging other crops.
The third characteristic is given by the high standard processes used while preparing the Analyst Colex-D, which makes it lack of specific odor For older formulations based on 2,4-D.
Finally, it is the only registered and approved product based on 2,4-D to be used on analyte crops, be it corn or soybeans, with the absolute certainty of being completely selective for them. As already mentioned, Corteva AgriScience has been working with this formulation for more than 12 years to catalog crops in Argentina and validate its total safety for them, as well as the surrounding areas. Can also reduce risk to sensitive crops.