HERBICIDE DEFENDA Paldis

Mechanism of action

The active ingredient of the herbicide Paldis belongs to the triketone chemical class and directly affects the carotenoid layer, disrupting photosynthesis; the weeds become discoloured and die quickly. Two days are needed to halt weed development; after 5 days the typical signs of the herbicide's action appear — whitening — and after 14 days — complete death. The herbicide's speed of action also depends on light intensity. On overcast days the action is slower. But complete death is ultimately achieved (only over a longer period).