Agricultural Herbicides Pendimethalin 95% TC prevent annual weeds
Oral - rat LD50: 1050 mg / kg; oral - mouse LD50: 1340 mg / kg
Flammability hazard characteristics
Combustion produces toxic nitrogen oxides.
Storage and transportation characteristics
Warehouse ventilation low temperature drying, separate from food
raw materials storage and transportation
Fire extinguishing agent
Dry powder, foam, sandy soil
LD501250mg/kg in rats, LD501620mg/kg in mice, LD50 > 5000mg/kg
in rabbits, and LC50 > 320mg/m3 in rats. It has no irritation on
skin and eyes. Rats were fed for 2 years without any dose of
100mg/kg per day. There were no teratogenic, carcinogenic and
mutagenic effects in the test dosage, and no abnormalities were
found in the third generation reproductive test and delayed
neurotoxicity test. The bluish gills had no influence on 0.1mg/L,
rainbow trout for 0.075mg/L and catfish for 0.32mg/L. The LC50 of
wild duck is 10338mg/kg and quail is LC504187mg/kg. The LD50 of
bee's mouth is 50 g/.
The pure product is orange-yellow crystalline solid, m.p.54-58 C
(56-58 C) and vapor pressure 40 Pa (3.99 x 10-5 Pa) (25 C). Soluble
in chlorinated hydrocarbon and aromatic hydrocarbon solvents,
acetone 700g/L, isopropanol 77g/L, xylene 628g/L, corn oil 148g/L,
solubility in water at 20 C 0.33mg/L. It is stable to acids and
Two nitroaniline herbicides. Inhibit the division of meristem
cells. The buds, stems and roots of weeds play a role in the
process of germination. The absorption sites of dicotyledons are
hypocotyls and monocotyledons are young buds. The symptoms of
injury are inhibition of young buds and secondary roots.
It can be used in corn, soybean, wheat, cotton, vegetable and
orchard to control weeds such as barnyard grass, cathay, bluegrass,
Chenopodium, amaranth and so on. For soybean and peanut fields, 33%
EC 30-45 mL/100 M2 (effective ingredient 10-15 g/100 m2), 33% EC 30
mL/100 M2 (effective ingredient 10 g/100 m2) for corn fields, and
33% EC 15-22 mL/100 M2 (effective ingredient 5-7.5 g/100 m2) for
Selective herbicides are used to control annual grasses and some
annual broad-leaved weeds. It is applied before the seedlings of
cereals, maize and rice, or before the sprouts of broad beans,
cotton, peanuts and soybeans. It can also prevent tobacco root
sucking in vegetable fields before or before transplanting.
It is used to control annual grasses and some broad-leaved weeds.
High effective agrochemical
Oral Acute oral LD50 for rats >5000, male mice 1620, female mice
1340, rabbits >5000, beagle dogs >5000 mg/kg. Skin and eye
Acute percutaneous LD50 for rabbits >2000 mg/kg. Non-irritating
to skin and eyes (rabbits). Inhalation LC50 for rats >320 mg/l.
NOEL In 2 y feeding trials, rats receiving 100 mg/kg diet showed no
ill-effects. Water GV 20 mg/l (TDI 5 mg/kg b.w.). Toxicity class
WHO (a.i.) III; EPA (formulation) III EC classification R43| N;
Pendimethalin Mode of action Selective herbicide, absorbed by the
roots and leaves. Affected plants die shortly after germination or
following emergence from the soil. Pendimethalin Uses Control of
most annual grasses and many annual broad-leaved weeds, at 0.6-2.4
kg/ha, in cereals, onions, leeks, garlic, fennel, maize, sorghum,
rice, soya beans, peanuts, brassicas, carrots, celery, black
salsify, peas, field beans, lupins, evening primrose, tulips,
potatoes, cotton, hops, pome fruit, stone fruit, berry fruit
(including strawberries), citrus fruit, lettuce, aubergines,
capsicums, established turf, and in transplanted tomatoes,
sunflowers, and tobacco. Applied pre-plant incorporated,
pre-emergence, pre-transplanting, or early post-emergence.
Pendimethalin also used for control of suckers in tobacco.
Phytotoxicity Injury to maize may occur if used as a pre-plant,
soil-incorporated treatment. Pendimethalin Formulation types EC;
GR; SC; WG.