13/04/2020
W**d Killer Mode of Action
Contact w**d killers (e.g. W**d Weapon Natural Power ) cause damage wherever they touch a plant. To work well, a contact w**d killer should thoroughly cover the leaves and stems. Contact w**d killers work best on small annual w**ds. They have less effect on perennial w**ds unless applications are repeated. Most contact w**d killers work very quickly (1-3 days).
Systemic w**d killers (e.g. W**d Weapon Extra Strength ) are absorbed and moved throughout the plant. They are sometimes applied to the foliage and sometimes to the soil although some systemic w**dkillers such as glyphosate in W**d Weapon Extra Strength are inactivated by contact with clay particles in the soil. They can be absorbed and translocated (moved) from the foliage, roots or stems to other parts of the plant.
Systemic herbicides work well on perennial w**ds because the herbicide is moved to parts of the plant other than where it was applied. This feature is particularly valuable for killing root, tuber and rhizome growth on perennial w**ds.
W**d Weapon Rapid Action combines both contact and systemic action giving the fastest effects on w**ds and still killing down tot he roots.
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