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EC number: 618-690-2 | CAS number: 90982-32-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EPA OPP 122-1 (Terrestrial Plant Toxicity Tier I (seedling emergence))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPP 122-1 (Terrestrial Plant Toxicity Tier I (vegetative vigor))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPP 123-1 (Seedling Emergence Tier II)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPP 123-1 (Vegetative Vigor Tier II)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
- EC Number:
- 618-690-2
- Cas Number:
- 90982-32-4
- Molecular formula:
- C15H15ClN4O6S
- IUPAC Name:
- ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
- Test material form:
- solid
- Details on test material:
- Purity: 97.95%
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test substrate
- Vehicle:
- yes
- Remarks:
- HPLC grade Acetone
Test organisms
open allclose all
- Species:
- Allium cepa
- Plant group:
- Monocotyledonae (monocots)
- Species:
- Zea mays
- Plant group:
- Monocotyledonae (monocots)
- Species:
- Triticum aestivum
- Plant group:
- Monocotyledonae (monocots)
- Species:
- Sorghum vulgare
- Plant group:
- Monocotyledonae (monocots)
- Species:
- Beta vulgaris
- Plant group:
- Dicotyledonae (dicots)
- Species:
- Glycine max (G. soja)
- Plant group:
- Dicotyledonae (dicots)
- Species:
- Pisum sativum
- Plant group:
- Dicotyledonae (dicots)
- Species:
- Lycopersicon esculentum
- Plant group:
- Dicotyledonae (dicots)
- Species:
- Brassica napus
- Plant group:
- Dicotyledonae (dicots)
- Species:
- Cucumis sativus
- Plant group:
- Dicotyledonae (dicots)
Study design
- Test type:
- seedling emergence toxicity / vegetative vigour test
- Study type:
- laboratory study
- Substrate type:
- other: Steam-pasteurized Sassafras loamy sand
- Total exposure duration:
- 21 d
Test conditions
- Test temperature:
- 15-43°C
- Nominal and measured concentrations:
- Tier I emergence (E22T1): 0.244 mg/L (nominal); 0.230 mg/L (analytical)
Tier 2 emergence (E22T2): 0.244 mg/L (nominal); 0.230 mg/L (analytical)
Tier 2 emergence (E22T2A): 0.244 mg/L (nominal); 0.251 mg/L (analytical)
Tier 2 Vigor (V22T2): 0.244 mg/L (nominal); 0.241 mg/L (analytical) - Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Cucumis sativus
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Cucumis sativus
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.002 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Cucumis sativus
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.013 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Beta vulgaris
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Beta vulgaris
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.002 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Beta vulgaris
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.008 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.005 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.018 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.046 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Zea mays
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- < 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Zea mays
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Zea mays
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.094 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.005 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.029 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.162 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Pisum sativum
- Duration:
- 21 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.02 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Pisum sativum
- Duration:
- 21 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.051 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Pisum sativum
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.221 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.325 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- > 3.9 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- > 3.9 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 (After preemergence exposure)
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot height
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot height
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Brassica napus
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.002 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot height
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Allium cepa
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Allium cepa
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Allium cepa
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Pisum sativum
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Pisum sativum
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Pisum sativum
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.004 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Beta vulgaris
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Beta vulgaris
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.001 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Beta vulgaris
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.005 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.004 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.014 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Cucumis sativus
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.003 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Cucumis sativus
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.009 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Cucumis sativus
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.041 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Visual response
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.005 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.011 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Sorghum vulgare
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.026 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Zea mays
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Zea mays
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.011 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Zea mays
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.036 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.01 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.026 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Triticum aestivum
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.072 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- other: NOEL
- Effect conc.:
- 0.02 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- EC25
- Effect conc.:
- 0.06 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
- Key result
- Species:
- Glycine max (G. soja)
- Duration:
- 14 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.243 other: oz/acre
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- other: Shoot dry weight
- Remarks on result:
- other: Most sensitive parameter based on EC25 from foliar exposure to test substance with a nonionic surfactant
Applicant's summary and conclusion
- Conclusions:
- 14/21 days after preemergence exposure:
21 d EC25 (onion): 0.000183 oz ai/acre (shoot dry weight)
14 d EC25 (rape): 0.00104 oz ai/acre (visual response)
21 d EC25 (cucumber): 0.00157 oz ai/acre (shoot dry weight)
21 d EC25 (sugar beet): 0.00199 oz ai/acre (shoot dry weight)
14 d EC25 (tomato): 0.00502 oz ai/acre (visual response)
21 d EC25 (sorghum): 0.00989 oz ai/acre (shoot dry weight)
21 d EC25 (corn): 0.00991 oz ai/acre (shoot dry weight)
14 d EC25 (wheat): 0.0295 oz ai/acre (visual response)
21 d EC25 (pea): 0.0513 oz ai/acre (shoot dry weight)
14 d EC25 (soybean): >3.90 oz ai/acre (visual response)
From foliar exposure to the test substance with a nonionic surfactant:
14 d EC25 (rape): 0.000250 oz ai/acre (shoot height)
14 d EC25 (onion): 0.000712 oz ai/acre (shoot dry weight)
14 d EC25 (pea): 0.000903 oz ai/acre (visual response)
14 d EC25 (sugar beet): 0.00124 oz ai/acre (shoot dry weight)
14 d EC25 (tomato): 0.00398 oz ai/acre (shoot dry weight)
14 d EC25 (cucumber): 0.00912 oz ai/acre (visual response)
14 d EC25 (sorghum): 0.0106 oz ai/acre (shoot dry weight)
14 d EC25 (corn): 0.0111 oz ai/acre (shoot dry weight)
14 d EC25 (wheat): 0.0262 oz ai/acre (shoot dry weight)
14 d EC25 (soybean): 0.0602 oz ai/acre (shoot dry weight) - Executive summary:
Nontarget terrestrial plant response to the test substance was evaluated on 10 common terrestrial plant species according to the guidelines EPA OPP 122-1 and EPA OPP 123-1. Testing was conducted at rates of up to 1.30 oz ai/acre (the maximum use rate for a single application) to establish effects of the test substance on emergence and early seedling growth following soil surface application and on vegetative vigor following foliar exposure.
Parameters such as height, weight, and visual response were measured. Those plants exhibiting a 25% or greater inhibitory response when treated at the maximum use rate and those plants where a 25% or greater response could not be statistically refuted were treated with multiple rates of the test substance to establish a dose response curve. When possible, the rates producing 50% and 25% inhibitory effects (EC50 and EC25, respectively) and the no observable effect level (NOEL) were determined.
The results for the most sensitive parameter, based on the EC25, at 14 days after preemergence exposure to the test substance were as follows:
Plant
NOEL
(oz ai/acre
EC25
(oz ai/acre)
EC50
(oz ai/acre)
Most Sensitive
Parameter
Onion
0.0000793
0.000183
0.000981
Shoot Dry Weight*
Rape
0.00127
0.00104
0.00300
Visual Response
Cucumber
0.00254
0.00157
0.0126
Shoot Dry Weight*
Sugar beet
0.00254
0.00199
0.00767
Shoot Dry Weight*
Tomato
0.00254
0.00502
0.0176
Visual Response
Sorghum
0.0102
0.00989
0.0457
Shoot Dry Weight*
Corn
< 0.0102
0.00991
0.0938
Shoot Dry Weight*
Wheat
0.00508
0.0295
0.162
Visual Response
pea
0.0203
0.0513
0.221
Shoot Dry Weight*
Soybean
0.325
>3.90†
>3.90†
Visual Response
*Determining shoot dry weight is a destructive process. Therefore, this parameter was measured at the end of the test, 21 days after treatment.
†The upper limit for reported values was set at 3.90 oz ai/acre, 3X the maximum use rate.
The results for the most sensitive parameter, based on the EC25, from foliar exposure to the test substance with a nonionic surfactant were as follows:
Plant
NOEL
(oz ai/acre
EC25
(oz ai/acre)
EC50
(oz ai/acre)
Most Sensitive
Parameter
Rape
0.0000198
0.000250
0.00234
Shoot Height
onion
0.000317
0.000712
0.00142
Shoot Dry Weight
pea
0.00127
0.000903
0.00431
Visual Response
Sugar beet
0.000317
0.00124
0.00494
Shoot Dry Weight
Tomato
0.00254
0.00398
0.0141
Shoot Dry Weight
Cucumber
0.00254
0.00912
0.0405
Visual Response
Sorghum
0.00508
0.0106
0.0257
Shoot Dry Weight
Corn
0.0102
0.0111
0.0362
Shoot Dry Weight
Wheat
0.0102
0.0262
0.0723
Shoot Dry Weight
Soybean
0.0203
0.0602
0243
Shoot Dry Weight
This study was conducted using 1) very high spray volumes, maximizing coverage, 2) a low organic matter soil, minimizing sorption of the test substance, and 3) steam-pasteurized soil, reducing the test substance degradation. These conditions represent maximum herbicidal activity. Since growing and environmental conditions can vary greatly in the field, observed response in the field is likely to be reduced.
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