Life-History Traits and Population Relative Fitness of Trichlorphon-Resistant and -SusceptibleBactrocera dorsalis(Diptera: Tephritidae) | Zendy

Yuping Zhang | Zendy; Lu YongYue | Zendy; Zeng Ling | Zendy; Liang Guangwen | Zendy

Open Access

Life-History Traits and Population Relative Fitness of Trichlorphon-Resistant and -SusceptibleBactrocera dorsalis(Diptera: Tephritidae)

Author(s) -

Yuping Zhang,

Lu YongYue,

Zeng Ling,

Liang Guangwen

Publication year - 2010

Publication title -

psyche a journal of entomology

Language(s) - English

Resource type - Journals

eISSN - 1687-7438

pISSN - 0033-2615

DOI - 10.1155/2010/895935

Subject(s) - fecundity , population , strain (injury) , biology , bactrocera dorsalis , tephritidae , demography , pest analysis , botany , anatomy , sociology

Life tables were established for trichlorphon-resistant and susceptible Bactrocera dorsalis strains based on thelaboratory observations. Trichlorphon-resistant B. dorsalis strain had longer pupal and preoviposition periods, and meangeneration time compared to the trichlorphon susceptible strain. Lower fecundity, emergence rate, and probability ofstandard fecundity PF, and shorter female and male longevity also were apparent in the trichlorphon resistant strain.Based on the life tables, the life population trend index (I) of the resistant strain was 86.80, while that of the susceptiblestrain was 116.97. The net reproduction rate (R0) and the intrinsic rate of increase (rm) of the resistant strain were 1565.33 and 0.0164, while those of susceptible strain were 2184.00 and 0.0173, respectively. The results from this researchrevealed that the resistant strain was at a reproductive and developmental disadvantage relative to the susceptible strain

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