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Insecticide Toxicity to the Three Insects from Ohio Ponds

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/22341

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dc.creator Federle, P. F. en_US
dc.creator Collins, W. J. en_US
dc.date.accessioned 2006-07-07T01:30:21Z
dc.date.available 2006-07-07T01:30:21Z
dc.date.issued 1976-01 en_US
dc.identifier.citation The Ohio Journal of Science. v76, n1 (January, 1976), 19-24 en_US
dc.identifier.issn 0030-0950 en_US
dc.identifier.uri http://hdl.handle.net/1811/22341
dc.description Author Institution: Department of Entomology, The Ohio State University en_US
dc.description.abstract Three insect species from Ohio ponds, the damselfiy, Lestes congener, backswimmer, Notonecta undulata, and crawling water beetle, Peltodytes spp., were examined for susceptibility (96-hr LC50) to insecticides representing the major classes (organochlorines, carbamates and organophosphates). For all three species, propoxur and carbaryl (carbamates) were generally the least toxic of all insecticides (LCoo from 0.16 to 8.0 ppm); dichlorvos (phosphate) . and malathion (phosphorodithioate) (LC50 from 0.02 to 1.0 ppm) were more toxic than the carbamates; lindane (LC50 from 0.003 to 0.2 ppm) was more toxic than dichlorvos and malathion; parathion and chlorpyriphos (phosphorothioates) and dieldrin were the most toxic of all insecticides examined (LC50 from 0.0008 to 0.007 ppm); DDT (LC50 from .001 to 0.1 ppm) exhibited the widest range of toxicity among the three insects. In all cases, mortality increased with exposure time. Piperonyl butoxide synergized allethrin and Zectran ® in Peltodytes spp. en_US
dc.format.extent 419413 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.title Insecticide Toxicity to the Three Insects from Ohio Ponds en_US