Active ingredient
|
Quinclorac
|
||
Chemical name
|
3,7-dichloro-8-quinolinecarboxylic acid
|
||
Classification
|
Herbicide / Agrochemical
|
||
Formulation
|
75%WDG, 50%WP, 25%SC
|
||
Biochemistry
|
Synthetic auxin (acting like indolylacetic acid); also inhibitor of cell wall (cellulose) biosynthesis.
|
||
Mode of action
|
Rapidly absorbed through the foliage. Weak auxin activity as determined in wheat coleoptile elongation test, cucumber root elongation test, cucumber curvature test and ethylene biosynthesis test in soya beans. No influence on Hill reaction. Plant response is similar to IAA or auxin-type herbicides of the class of benzoic acids.
|
||
Usage
|
Pre- and post-emergence control of grass weeds (Echinochloa spp., Aeschynomene spp., Sesbania spp.) and other weeds in direct-seeded and transplanted rice, at 0.25-0.75 kg/ha.
|
||
Applications
|
Oral: Acute oral LD50 for rats 2680, mice >5000 mg/kg.
Skin and eye: Acute percutaneous LD50 for rats >2000 mg/kg. Non-irritating to eyes and skin (rabbits). Eye irritant; non-irritating to skin (rabbits). Inhalation: LC50 (4 h) for rats >5.2 mg/l. NOEL: (2 y) for rats 533 mg/kg b.w. Other: Not carcinogenic. |
||
Certificate of quality
|
Quinclorac 25% SC
|
||
Item
Appearance A.I. Content pH value Suspensibility Residual after being poured Residual after abstersion |
Specification
Light yellow liquid ≥25% 3.3-6.0 ≥90% ≤8.0% ≤0.6% |
CROP
|
WEED
|
RECOMMENDED RATE
|
USAGE
|
Direct sowing rice fields
|
Barnyard grass and other weeds
|
187.5-225 g/ha
|
Cauline leaf spray
|
Rice transplanting field
|
Barnyard grass and other weeds
|
178.5-375 g/ha
|
Cauline leaf spray
|