Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 429490
Title Development of a standard acute dietary toxicity test for the silkworm (Bombyx mori L.)
Author(s) Sun, X.; Valk, H.; Jiang, H.; Wang, X.; Yuan, S.; Zhang, Y.; Roessink, I.; Gao, X.
Source Crop Protection 42 (2012). - ISSN 0261-2194 - p. 260 - 267.
Department(s) Environmental Systems Analysis Group
Aquatic Ecology and Water Quality Management
Sub-department of Soil Quality
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) susceptibility - lepidoptera - strains - growth
Abstract Larvae of the silkworm (Bombyx mod L.) may be exposed to pesticide residues on the leaves of their food plant, the mulberry tree (Morus spp.), which can lead to adverse effects on silk production. A new acute dietary toxicity test method was evaluated as the basis for pesticide risk assessment. A series of 57 tests were carried out with six insecticides and six different silkworm strains. LC50 ranges were, in increasing order: cypermethrin 0.016-0.069 mg kg(-1) fresh mulberry leaf; imidacloprid 0.13-0.29 mg kg(-1); monosultap 0.19-0.37 mg kg(-1); phoxim 0.42-0.48 mg kg(-1); dichlorvos 5.6-6.9 mg kg(-1) and dimethoate 10.2-24.7 mg kg(-1). The Qiu Feng x Bai Yu and the Chun Lei x Zhen Zhu strains were overall most sensitive to the tested insecticides. Control mortality in the test system always remained below 5%, and precision of the LC50 estimates was high. The coefficient of variation of LC50 values among tests was consistently less than 20%. The acute dietary toxicity test was found to be highly reproducible and robust. (C) 2012 Published by Elsevier Ltd.
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