The herbicidal effect of the product involves a combination systemic effect of 2,4-D and chlorsulfuron. Both active substances are absorbed mainly by leaves and roots, quickly move through the plant with assimilation or transpiration currents, accumulating in young meristematic tissues of leaves, stems and roots (growth points).
2,4-D is a hormone-like herbicide (synthetic auxin) that disrupt plant growth, causing tissue outgrowth and deformation of xylem and phloem cells, which inhibits the movement of photosynthesis products, and the plant dies. 2,4-D ethers cause deeper damage to roots, compared to salts. When the recommended consumption rates are followed, 2,4-D is quickly inactivated in the soil and disintegrates within 1-1.5 months.
Chlorsulfuron inhibits acetolactate synthase, suppressing the biosynthesis of the essential amino acids leucine, isoleucine and valine. Chlorsulfuron decomposes in the soil for a long period of time, therefore it has a soil effect.
Rate of exposure
The herbicide effect against weeds (particularly those sensitive to 2,4-D) starts within a few hours after treatment. Visible signs of the effect of both components against weeds appear 2-7 days after spraying (cessation of growth, chlorosis, death of growth points, necrosis). Then the rest of the plant is affected, including the root system. Dicotyledonous weeds resistant to 2,4-D are affected slowly (5-10 days) and die in 2-3 weeks. Some of them, especially those at a later stage of growth, do not die at the time of application. However, they stop growing, remain in the lower layer and do not compete with crops.
Spectrum of action
Annual dicotyledonous weeds, including those resistant to 2,4-D, and some perennial dicotyledonous weeds.
Susceptible species: ragweed, green field speedwell, field gromwell, common persicaria, pale persicaria, field mustard, black bindweed, flixweed, treacle mustard, chickweed, narrow-leaved peppergrass, blue lettuce, European stickseed, common mallow, goosefoot, ball mustard, field milk thistle, shepherd's purse, common hemp-nettle, common sunflower, bladder campion, corn spurry, hedge-nettle betony, red-root amaranth, field pennycress, common henbit, etc.
Moderately susceptible species: field thistle, prickly lettuce, catchweed bedstraw, wormwood, forking larkspur, scentless false mayweed, etc.
Low susceptible species: field
pansy, common dandelion, field bindweed, common stork’s-bill, etc.
