Registration Dossier
Registration Dossier
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EC number: 237-198-5 | CAS number: 13684-56-5
Endpoint summary
Administrative data
Description of key information
Toxicity to soil macroorganisms: The purpose of this study was to determine the sublethal effects of Desmedipham on reproduction, mortality, and growth of the earthworm Eisenia fetida in a laboratory test. Mortality and biomass change were determined after 4 weeks, and reproduction was determined after 8 weeks. The NOEC (reproduction) was determined to be ≥128 mg/kg soil dw.
Toxicity to arthropods:
The purpose of this study is to determine potential effects of different concentrations of Desmedipham on the reproductive output of the collembolans Folsomia candida during a test period of 28 days. The overall NOEC was determined to be ≥316 mg/kg soil dw.
The purpose of this study was to determine potential effects of Desmedipham on the mortality and the reproductive output of the soil mite species Hypoaspis aculeifer (CANESTRINI) during a test period of 15 days. The NOEC was determined to be ≥316 mg/kg soil dw.
Toxicity to terrestrial plants:
Vegetative vigour study: Following a foliar application of Desmedipham at 0.094 L/ha and 1.5 L/ha to ten terrestrial plant species at the 2 to 4 leaf stage all tested plant species showed phytotoxic symptoms visible as chlorosis, necrosis and plant stunting. The lowest NOER (radish) was determined to be 0.375 L formulation/ha (corresponding to 0.045 mg Desmedipham/kg soil dw).
Seedling emergence study: Following a soil surface application of Desmedipham 1.5 L/ha to ten terrestrial plant species at the 2 to 4 leaf stage all tested plant species to ten non-target terrestrial plant species, no adverse effects on emergence, seedling survival and biomass exceeding 50% effect were observed. The NOER was determined to be 1.5 L formulation/ha (corresponding to 0.18 mg Desmedipham/kg soil dw).
The purpose of this study was to determine the effects of Desmedipham on the activity of soil microflora with regard to nitrogen transformation in a laboratory test. A loamy sand soil was exposed for 28 days to 0.64 and 6.40 mg/kg soil dw.¿Desmedipham caused no adverse effects. At the end of the 28-day incubation period of the soil nitrogen transformation (measured as NO3-N production) a non-statistical difference in the NO3-N production in the treatment of -12.3% compared to the control was observed (validity criterium: difference to control <25%). The NOEC was determined to be ≥6.4 mg/kg soil dw.
Additional information
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