Clomazone has a systemic effect in soil application; it penetrates roots and hypocotyl of weeds and moves along the xylem. It also has a contact effect when applied on vegetative weeds.
Clomazone inhibits the synthesis of pigments necessary for photosynthesis, primarily carotenoids and chlorophylls. As a result, susceptible plants show discolouration, necrosis of green tissues, dwarfing and eventually death.
Protective effect period
Clomazone has a long-term effect in the soil. As a result, it provides protection against weeds for 1-3 months (depending on the soil and climatic conditions).
Rate of exposure
A visible effect is observed within 1-2 days after application. Complete elimination of weeds occurs within a week with pre-emergence application and within 10-14 days when applied on vegetative weeds.
Spectrum of action
Annual dicotyledonous and grass weeds:
Goosefoot, barnyard grass, garden thistle, knotweed, field mustard, chickweed, shepherd’s purse, black nightshade, catchweed bedstraw, thorn apple, ragweed, mayweed, rough meadow grass, motherwort, field pennycress, buttonweed, crabgrass, sunflower drop, common purslane, cobblers pegs, common hemp-nettle, common henbit, field horsetail, etc.
