| Use | CONTACT HERBICIDE
Bentazon selectively controls many sedge weeds.
SELECTIVE POSTEMERGENCE CONTROL OF MANY BROADLEAF WEEDS IN
ALFALFA, ASPARAGUS, CEREALS, CLOVER, DIGITALIS, FLAX, GARLIC, GRASSES,
LAWNS, NARCISSUS, ONIONS, ORNAMENTAL TURF, POTATOES, SORGHUM,
SUGARCANE, SOYBEANS, RICE, CORN, PEANUTS, DRY BEANS, DRY PEAS, SNAP
BEANS FOR SEED, GREEN (SUCCULENT) LIMA BEANS, & MINT.
Controls a number of broadleaved and sedge weeds primarily by contact actionin most
graminous and many large seeded leguminous crops.
A post-emergence herbicide with activity against a wide range of broadleaf weeds, as well as
yellow nutsedge. All types of beans, including soybeans, corn, sorghum, peanuts, peas, established
alfalfa, lawns, rice are tolerant to bentazon/, while soybean and Canada thistle show differential
activity.
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| Environmental Fate | TERRESTRIAL FATE: HERBICIDAL ACTIVITY IS BRIEF, GIVING NO
RESIDUAL PROBLEMS.
TERRESTRIAL FATE: The aromatic ring of bentazon was hydroxylated in soil. At
concentrations of 2 to 10 ppm, bentazon half-life = 2 to 5 weeks in soil. The hydroxybentazons
could not be detected, possibly because they were immediately incorporated into the humic
substances and fulvic acids. When soil was treated with bentazon, the major metabolite identified
was 2-amino-N-isopropyl benzamide.
TERRESTRIAL FATE: Bentazon does not persist in loamy sand soil. Within 15 wk, bentazon
broke down quantitatively at room temperature and 15% soil moisture. Anthranilic
acid-isopropylamide was identified. This broke down quickly.
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