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Ecotoxicological information

Toxicity to terrestrial arthropods

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Administrative data

Endpoint:
toxicity to terrestrial arthropods: long-term
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Test conditions are well described, but the species used is not standardised. The number of tested organisms per group is not indicated, the range of concentrations tested is not known, there is no analytical monitoring data and the pH during the test is not described.

Data source

Reference
Reference Type:
publication
Title:
Toxicological effects produced by some 1,3-benzodioxoles, catechols and quinones in Culex mosquito larvae
Author:
Desmarchelier JM, Fukuto TR
Year:
1974
Bibliographic source:
J Economic Entomology, 67(2), 153-158

Materials and methods

Principles of method if other than guideline:
No data
GLP compliance:
no
Application method:
oral

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
4-tert-butylpyrocatechol was synthesised as described by Desmarchelier et al. (1973). It was purified by recrystallization or sublimation prior to use. Structure was confirmed by NMR and usually by mass spectrometry.

Sampling and analysis

Analytical monitoring:
not specified

Test substrate

Vehicle:
yes
Details on preparation and application of test substrate:
No data

Test organisms

Test organisms (species):
Culex pipiens quinquefasciatus
Animal group:
Diptera (mosquitoe)
Details on test organisms:
TEST ORGANISM
- Common name: culex pipiens quinquefasciatus
no other data available

ACCLIMATION: no data

Study design

Study type:
laboratory study
Total exposure duration:
21 d

Test conditions

Test temperature:
24°C
Humidity:
no data
Photoperiod and lighting:
no data
Details on test conditions:
No data
Nominal and measured concentrations:
0.1 and 1 ppm

Results and discussion

Any other information on results incl. tables

Endpoint                         Concentration (ppm)
                                 0.1             1
% 24h larval mortality                0               0
% dead larvae                         25              85
% dead pupae                         0                0
% dead adults                         5                10
% live adult                         70               5

Applicant's summary and conclusion