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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
Address:College of Life Sciences, Sichuan University, No.29, Wangjiang Road, Chengdu, Sichuan Province, 610064, China
Fax:+86-28-85410485 &
Your Position :Home->Past Journals Catalog->2012 Vol.31 No.5

Study on the Toxicity of Single and Combination of Carbendazim and Doctor 1:4 to Earthworms.
Author of the article:BAI Gui-fen, LI Bing
Author's Workplace:(Department of Life Science, Chi-Feng College, Chifeng, Inner Mongolia Autonomous Region 024000, China)
Key Words:Carbendazim; Doctor 1:4; earthworm; toxicity

Carbendazim and Doctor 1:4 are widely used pesticides in agriculture. They are also pollutant of soil due to their potentials in killing or inhibiting the growth of soil animals. In the study, we used earthworm as model animal to assess the toxicity of Carbendazim and Doctor 1:4 to soil animals other than their target pests. Earthworms were exposed to Carbendazim and Doctor 1:4 at different gradients of concentrations respectively, either separately or in combination in normal conditions of lab. Toxic effects were observed at 0h, 24 h and 48h after exposure. Results indicated the both Carbendazim and Doctor 1:4 are toxic to earthworm, but toxicity of Carbendazim was higher and severer than that of Doctor 1:4. The half lethal concentrations were 1.28 g·L-1 and 2.88 g·L-1, respectively. When the Carbendazim and Doctor 1:were used in combination, the overall toxicity was reduced comparing to the cases of single use. The result demonstrates that Carbendazim and Doctor 1:4 should be used in combination to minimize the pollution to soil in case that their toxicity to target pests would not be reduced.

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