TOUCHDOWN –  NESELEKTIVNI HERBICID NA OSNOVI SULFOSATA (=GLIFOSAT-TRIMESIUM) Z DODATKOM POSEBNEGA MOČILA

Vasja Hafner

Novartis Agro d.o.o., SI-1000 Ljubljana, Slovenija

Touchdown je neselektivni herbicid za zatiranje vseh enoletnih in večletnih plevelov. Rastline ga vsrkajo preko listov in stebel, v rastlini se premešča sistemično (akropetalno in bazipetalno) in zatre tako nadzemne dele rastline kot tudi korenine. Touchdown vsebuje novo trimesium sol glifosatne kisline (sulfosat) z dodatkom posebnega močila, ki izboljšuje oprijemljivost na listu, omočenje in prodiranje v list. Posledica je boljše herbicidno delovanje in njegova večja zanesljivost v primerjavi z običajnimi pripravki na glifosatni osnovi.

Biotično aktivni del sulfosata je glifosatna kislina. Med vsemi glifosatnimi solmi, ki so na tržišču, je sulfosat najbolj topen. Trimesium kation sulfosata izboljšuje absorbcijo aktivne snovi v rastlino, kar je verjetno glavni razlog za izboljšanje herbicidnega delovanja glifosatne kisline. Vnos sulfosata v list je hitrejši kot pri običajnih glifosatnih pripravkih. Posledica je večja odpornost proti izpiranju ter intenzivnejše delovanje. Touchdown vsebuje posebno močilo alkilpoliglukozid (APG), ki zaradi specifičnih lastnosti zagotavlja maksimalno oprijemljivost kapljic, optimalno porazdelitev depozita, oblikovanje homogene prevleke močila in sulfosata na listni površini, močno absorbcijo vlage, hiter prehod v floem in s tem hitro premeščanje, preprečevanje začetnih poškodb kutikule in membran (tipično pri drugih močilih oz. pri običajnih pripravkih na glifosatni osnovi) in posledično dodatno izboljšanje odpornosti proti izpiranju ter učinkovitosti delovanja.

Touchdown je zelo fleksibilen herbicid, ki ga lahko uporabljamo na strniščih, za tretiranja pred žetvijo v žitu, v sadovnjakih in vinogradih, na železnicah, na nekmetijskih zemljiščih in drugod.

ABSTRACT

TOUCHDOWN –  NON-SELECTIVE HERBICIDE BASED ON SULFOSATE (=GLYPHOSATE-TRIMESIUM) ENHANCED BY A UNIQUE WETTER SYSTEM

Touchdown is a non-selective herbicide for control of virtually all annual and perennial weeds. It is absorbed through leaves and stems of treated plants and then systemically (acropetal and basipetal movement) translocated throughout the plant and causing death of both foliage and roots. Touchdown contains the novel trimesium salt of glyphosate acid sulfosate enhanced by a unique wetter system, improving retention on the leaf, wetting and penetration. As a result, herbicidal activity and reliability improves, compared with ordinary glyphosate products.

Glyphosate acid is the biotically active herbicidal agent of sulfosate. Sulfosate is the most soluble of all glyphosate salts currently used. Trimesium cation in sulfosate enhances herbicidal activity of glyphosate acid, probably through its ability to improve uptake into the plant. Uptake of sulfosate into leaf is more rapid than with ordinary glyphosates. This offers advantages of rainfastness and greater robustness of performance. Touchdown contains the unique adjuvant alkylpolyglucoside (APG) which is well suited to provide maximum spray droplet retention, optimal spreading of deposit, staying together of an adjuvant and sulfosate in a homogenous phase on the leaf surface, strong absorbtion of the moisture, maximizing phloem loading and transport, prevention of initial damage to cuticle and membranes (typical for other adjuvants and ordinary glyphosate based products) and contribution to improved rainfastness and efficacy.

Touchdown is a highly versatile herbicide and can be used for stubble treatment, as a pre-harvest treatment in cereals, in orchards and vineyards, on railroads, on non crop land and more.