Mode of action
Fenoxaprop-P-ethyl is effective against grass weeds. Quickly absorbed by leaves, fenoxaprop-P-ethyl moves in the basipetal and acropetal directions to various plant organs. In growth zones of grass weeds, the synthesis of cell membranes ceases. A day after the treatment, the preparation weakens weeds. Clodinafop-propargyl inhibits lipid biosynthesis. Mefenpyr-diethyl is not only an antidote for cultivated crops, but acts also as a synergist in combination with fenoxaprop-P-ethyl. Mefenpyr-diethyl eliminates the phytotoxic effect of fenoxaprop-P-ethyl on some crops, and in addition to crop protection it increases the level of weed suppression (in particular, black foxtail).
Protective effect period
Throughout the growing period. The product is effective against the weeds present in the crops at the time of treatment for 3–4 weeks. Thus, the second wave of weeds cannot seriously compete with the crop.
Rate of exposure
The product quickly penetrates the leaves of weedy plants, and the weed-crops competition can be significantly reduced almost in 24 hours. However, weed grass plants completely die in 10–15 days or later depending on the weather conditions. The fastest herbicidal action is achieved when treating weed grass plants at the early stages of development (at the growth stage of 2–3 leaves) and under favorable growth conditions (at optimum humidity and temperature).
Spectrum of action
Annual grass weeds, such as wild oat (species), ryegrass (species), barnyard grass, witchgrass, panicum ruderale, corn grass, wind grass, black foxtail, meadow grass (species), bristle grass (species), hairy crab grass, ribbon grass (species), etc.
