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EC number: 205-087-0
CAS number: 133-06-2
Captan is moderately toxic to springtails, bees and earthworms. No phytotoxic effects were observed for tested terrestrial plants.
The results of terrestrial toxicity studies conducted on a range of terrestrial species are summarised in the table below:
Summary of the effects of Captan on terrestrial species
Earthworm – acute
(Toxicity to soil macroorganisms except arthropods)
Earthworm (Eisenia foetida foetida)
14-day LC50 >519.3 mg/kg
Roberts, N.L. and Hakin, B.
Springtail Folsomia candida – long term toxicity
(Toxicity to terrestrial arthropods
LOEC: 316.3 mg a.i./kg soil
NOEC: 177.9 mg a.i./kg soil
EC50 (numbers of
Progeny): 807.9 mg a.i./kg soil dry weight
LC50: > 1000 mg a.i./kg soil
Roberts, N.L. and Hakin, B. (1985), R-4211
Honey bee – short term toxicity
(Toxicity to terrestrial arthropods)
honey bee (Apis mellifera)
24 and 48-hour LD50
Oral: >100 µg/bee
Contact: >200 µg/bee
Gough, H.J. et al (1990)
Toxicity to terrestrial plants
Various plant species
No phytotoxic effects
Fiebig, (2006), R-29125
Toxicity to terrestrial microorganisms
EC10 = 0.07 mg/L
EC50 = 0.22 mg/L
Coleman et al. (1991), R-7578
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