Abstract:
The LC50 of Fury, a synthetic pyrethroid, against Pak strain of red flour beetle Tribolium castaneum increased with the age during development up to newly emerged adult stage but the 15 days old adults were the most sensitive developmental stage and have much less LC50 as compared with the other developmental stages. The LC50 of Pak strain was 405, 648, 560 and 121 ppm, respectively, whereas it was 856, 1088, 555 and 58 ppm, respectively, for the insecticide susceptible FSS-II strain. In insecticide resistant CTC-12 strain the 4th and 6th instar larvae, and newly emerged and 15 days old adults had LC50 of 1442, 1258, 1420 and 671 ppm.
Page(s):
361-366
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Zoology, Volume: 39, Issue: 6, Year: 2007
Keywords:
Tribolium castaneum
,
Lethal concentration
,
stored grain pest
,
red flour beetles
,
Fury
,
synthetic pyrethryoids