Araştırma Makalesi

Pleiotropic effects of propargite on life-table parameters of susceptible and resistant strains and reciprocal F1 hybrids of Tetranychus urticae Koch, 1836 and their implications for population growth

Cilt: 42 Sayı: 3 31 Mayıs 2018
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Pleiotropic effects of propargite on life-table parameters of susceptible and resistant strains and reciprocal F1 hybrids of Tetranychus urticae Koch, 1836 and their implications for population growth

Abstract

Demographic toxicological studies or life-table response experiments have been proposed as a more reliable approach for predicting pesticide impact in the field. Life-table parameters of the susceptible, propargite-resistant and reciprocal F1 hybrids of Tetranychus urticae Koch, 1836 (Prostigmata: Tetranychidae) were studied in the presence and absence of propargite residues at LC50 and LC99 of susceptible strain at Lincoln University, New Zealand. The life history data of all individuals were analyzed using the age-stage, two-sex life table. Treatment with LC50 of the susceptible strain did not affect the duration of developmental time of any strain. LC99 of the susceptible strain, however, prolonged the developmental time of the propargite-resistant strain by approximately 2 d. The intrinsic rate of increase (rm), Ro and total progeny production of the propargite-resistant strain and S × Rhybrid treated with LC50 of the susceptible strain were higher compared to that of the susceptible strain and R × S hybrid. Population projections were used to study the effects of relatively small differences in the life-table parameters of strains/hybrids of T. urticae. For the untreated control groups, the susceptible strain gave the highest population projection after 10 generations. In groups treated with LC50 of the susceptible strain, the projected population size showed that the number of adult females of the propargite-resistant strain superseded that of the susceptible strain. The hybrid S × R increased most from treatment with the LC50 of the susceptible strain. The differential success of different strains could, therefore, change resistance frequency throughout a growing season at a location.

Keywords

Kaynakça

  1. Andres, L. A., 1957. An Ecological Study of Three Species of Tetranychids (Acarina: Tetranychidae) and Their Response to Temperature and Humidity. University of California, (Unpublished) PhD Thesis, Berkeley, USA, 49 pp.
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Ayrıntılar

Birincil Dil

İngilizce

Konular

-

Bölüm

Araştırma Makalesi

Yazarlar

Riaz Shah *
Sultan Qaboos University
0000-0001-5018-9663
Oman

Yayımlanma Tarihi

31 Mayıs 2018

Gönderilme Tarihi

1 Şubat 2018

Kabul Tarihi

14 Mayıs 2018

Yayımlandığı Sayı

Yıl 2018 Cilt: 42 Sayı: 3

Kaynak Göster

APA
Shah, R. (2018). Pleiotropic effects of propargite on life-table parameters of susceptible and resistant strains and reciprocal F1 hybrids of Tetranychus urticae Koch, 1836 and their implications for population growth. Turkish Journal of Entomology, 42(3), 161-174. https://doi.org/10.16970/entoted.388147

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