Effects of agrochemical residues on four spider taxa: Laboratory methods for pesticide tests with web-building spiders |
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| Authors: | Fadel Mansour Wolfgang Nentwig |
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| Institution: | 1. Dept. of Entomology, ARO, Newe Ya’ar, 31999, P.O. Haifa, Israel
2. Dept. of Zoology, University of Regensburg, D-8400, Regensburg, F.R. of Germany
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| Abstract: | The susceptibility of web-building and hunting spiders from the tropics (Panama), Europe (F.R. of Germany) and the Middle
East (Israel) to 30 pesticides (16 insecticides, 4 acaricides, 1 herbicide, 9 fungicides) was determined. Laboratory test
methods for juvenile and adult web-building spiders are described.Philodromus sp. (hunting spider), was completely resistant to all substances;Argiope sp. (web-building spider),Linyphia sp. (web-building spider) andChiracanthium sp. (hunting spider) showed medium to high susceptibility. Insecticides affected spiders in a wide range of responses: from
no mortality (most compounds of biological origin) and medium mortality (pyrethrin compounds, organophosphorus and carbamate
compounds), to high mortality (cyclo compounds). To both groups of spiders (the hunting and web-building), most acaricides
were highly toxic, whereas herbicides and fungicides were nontoxic. |
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| Keywords: | Argiope argentata Linyphia triangularis Chiracanthium mildei Philodromus aureolus Araneae pesticides resistance |
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