Sublethal effects of triazophos on the life table parameters of Sogatella furcifera (Hemiptera: Delphacidae) Author Liu, Lei-Lei Institute of Entomology, Guizhou University, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guiyang, Guizhou, 550025,:. R. China Author Dai, Ren-Huai Institute of Entomology, Guizhou University, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guiyang, Guizhou, 550025,:. R. China Author Yang, Hong Author Jin, Dao-Chao Institute of Entomology, Guizhou University, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guiyang, Guizhou, 550025,:. R. China text Florida Entomologist 2016 2016-06-30 99 2 292 292 http://www.bioone.org/doi/10.1653/024.099.0221 journal article 299639 10.1653/024.099.0221 2850307c-6fc7-49f9-8760-d3b0b8121974 1938-5102 12171692
Table 3. Life table of Sogatella furcifera afer treatment of the parental generation with water (control) or sublethal concentrations (LC10, LC25) of triazophos.
ParameterControlLC10LC25
N 0, number of individuals in the initial population; Sr1 and Sr2, survival rate from neonate to 3rd instar and from 4th to 5th instar, respectively; Er, emergence rate; Fr, female ratio; Cr, rate of successful mating; Fd, fecundity (eggs per female in F2); Ha, hatchability; N, predicted number of offspring; I, population trend index. Mean (± SE) of 5 replicates. Values in the same row with different letters denote significant differences at P ≤ 0.05 (LSD test).
N 0100100100
Sr1 (%)91.40 ± 2.06a86.80 ± 3.92ab78.20 ± 3.95b
Sr2 (%)94.11 ± 0.47a88.32 ± 1.20b81.99 ± 2.80c
Er (%)90.24 ± 1.61a86.16 ± 4.01ab78.91 ± 2.04b
Fr (%)49.30 ± 1.76a48.66 ± 2.59a50.60 ± 2.19a
Cr (%)84.80 ± 2.94a73.60 ± 4.12b68.80 ± 3.20b
Fd154.06 ± 12.86a178.98 ± 14.49ab203.22 ± 15.31b
Ha (%)86.90 ± 2.00a79.57 ± 3.65ab77.19 ± 2.66b
N4344.443368.902762.91
I43.4433.6927.63
Relative fitness1.000.77550.6360