Linked Life Data

2367264

Source:http://linkedlifedata.com/resource/pubmed/id/2367264

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1990-8-13
pubmed:abstractText
Resistance to pyrethrins plus piperonyl butoxide (PB) in a population of Fannia canicularis (L.) (BR strain) at a broiler-breeder facility was determined (in F2 laboratory generation) to be 109.1-fold the median lethal dose (LD50), apparently having been influenced by twice-daily treatments with automatic spray equipment during the previous 2 years. By contrast, resistance was only 12-fold the normal LD50 in a population of Musca domestica L. (DH strain) at an egg-production facility that was subjected during a comparable period to treatments twice per week with synergized pyrethrins with the identical automatic pyrethrin-spray system. The automated application of a nonpersistent chemical at frequent intervals, obviously, provides continuity of selection pressure leading to high levels of resistance. Other factors such as enclosed poultry housing and the elimination of refugia have also contributed to the enhancement of resistance. The resistance level in Strain BR regressed to 31.7-fold after remaining unselected for an additional generation in the laboratory. Other bioassays on the F2 generation revealed limited resistance toward permethrin of 3.7-fold the normal LD50.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0032-5791
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
736-40
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Filth fly resistance to pyrethrins associated with automated spray equipment in poultry houses.
pubmed:affiliation
Department of Entomology, University of California, Riverside 92521.
pubmed:publicationType
Journal Article