Brain cholinesterase activities of birds from forests sprayed with trichlorfon (Dylox) and carbaryl (Sevin-4-oil)

Zinkl, J.G.; Henny, C.J.; DeWeese, L.R.

Abstract:

Brain cholinesterase activities were determined in birds from forests sprayed with Dylox2 at 1.13 kg/hectare (1 lb/acre ? active ingredient [a.i.]) or Sevin-4-oil2 at 1.13 kg/hectare (1 lb/acre ? a.i.) for up to 5 days postspray. Of ten bird species evaluated from the Dylox spray area, four species represented by six individuals had values which were depressed more than 2 standard deviations below the mean. Three of these activities (two species) were about 20% less than the mean. Of 12 species evaluated from the Sevin-4-oil spraying, three individuals representing three species had depressed values. One value was depressed greater than 20% below the mean. Half of the depressed activities were in canopy-dwelling birds collected on the day of spray.

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Article

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5221384

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Zinkl, J.G.; Henny, C.J.; DeWeese, L.R.

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Patuxent Wildlife Research Center

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386

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English

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Bulletin of Environmental Contamination and Toxicology

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379-386

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Brain cholinesterase activities of birds from forests sprayed with trichlorfon (Dylox) and carbaryl (Sevin-4-oil); 1977; Article; Journal; Bulletin of Environmental Contamination and Toxicology; Zinkl, J.G.; Henny, C.J.; DeWeese, L.R.