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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

1996

Engineering

Field tests

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Assessment Of The Environmental Impact Of Brodifacoum During Rodent Eradication Operations In New Zealand, D. R. Morgan, G. R. Wright, S. C. Ogilvie, R. Pierce, P. Thomson Jan 1996

Assessment Of The Environmental Impact Of Brodifacoum During Rodent Eradication Operations In New Zealand, D. R. Morgan, G. R. Wright, S. C. Ogilvie, R. Pierce, P. Thomson

Proceedings of the Seventeenth Vertebrate Pest Conference 1996

Although Talon® baits containing brodifacoum have been used successfully in eradicating rats from some of New Zealand's offshore islands, little is known about any environmental effects of this toxin. Invertebrates, blackbirds, soil, and water at intervals of two days to nine months were sampled to determine whether brodifacoum residues were present after aerial distribution of Talon® 20P cereal pellets on Red Mercury Island and after bait-station use of Talon® 50WB wax-coated cereal blocks on Coppermine Island. No brodifacoum residues were found in soil, water, or most (99 %) invertebrate samples. Low concentrations (0.12 /μg/g) were found in …


Palatability Of Rodenticide Baits In Relation To Their Effectiveness Against Farm Populations Of The Norway Rat, Roger J. Quy, David P. Cowan, Colin Morgan, Tom Swevney Jan 1996

Palatability Of Rodenticide Baits In Relation To Their Effectiveness Against Farm Populations Of The Norway Rat, Roger J. Quy, David P. Cowan, Colin Morgan, Tom Swevney

Proceedings of the Seventeenth Vertebrate Pest Conference 1996

The palatability of 12 rodenticide baits, formulated to vary from poorly accepted to well accepted, was measured in laboratory choice tests against Wistar and wild-caught Norway rats. The baits, derived from six bait bases and two active ingredients, difenacoum and bromadiolone, were simultaneously tested in the field against 24 farm infestations (2/formulation) in order to investigate the relationship between palatability and efficacy. Bait acceptance in laboratory tests, with EPA meal as the challenge diet, varied from 7.0 to 50.6% for Wistar rats and 3.7 to 85.1 % for wild rats. Changing the challenge diet to a ground-up laboratory animal food …