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Type: Journal article
Title: Biological traits and life table parameters A and B biotype of Bemisia tabaci (Genn.) on cotton and rapeseed
Author: Samih, M.
Zarabi, M.
Yazdani, M.
Rouhani, M.
Citation: Brazilian Archives of Biology and Technology: an international journal, 2014; 57(3):309-316
Publisher: Instituto de Tecnologia do Paraná
Issue Date: 2014
ISSN: 1516-8913
Statement of
Mohammad Amin Samih, Mehdi Zarabi, Maryam Yazdani and Mohammad Rouhani4
Abstract: The aim of this work was to construct life table of Bemisia tabaci (Gen.) A and B (silverleaf whitefly B. argentifolii Bellows and Perring) biotype (Hem.: Aleyrodidae) on two host plants; cotton, (Gossypium hirsutum L.) and rapeseed, (Brassica napus L.). Experiments were conducted in a growth chamber under 24 ± 2ºC, 55±3% RH and 16:8 (L:D) h photoperiod on caged plants of cotton G. hirsutum L. (Varamin 76 variety) and rapeseed B. napus L. (global variety. The intrinsic rate of natural increase (rm), net reproductive rate (R0) and mean generation time (T) for B. tabaci A biotype was 0.1010 females per female per day, 18.4075 females per female and 30.079 day (d) on cotton; 0.1286, 30.6760 and 26.77 d on rapeseed; and for B biotype (B. argentifolii) those above respective parameters averaged 0.1033, 27.8426 and 32.74 d on cotton and 0.1750, 40.75 and 21.27 d on rapeseed. The total survival of A and B biotype from the egg to adult on cotton was 22.08 and 22.25, respectively. The results showed significant differences between the two biotype reared on either host plant for gross reproductive rate (GRR), net reproductive rate (R0 or NRR), intrinsic rates of increase (rm), finite rate of increase (λ), doubling time (DT) and mean generation times (Tc). To obtain a better understanding of the biology of these biotypes, Stable age distribution (Cx) and some other aspects of life history related to their hosts were also studied. Based upon the results, both biotypes showed a greater reproduction capacity on rapeseed than on cotton. Thus, rapeseed was more suitable host than cotton for two biotypes and this was an important factor in host plant selection for optimizing the control strategies of these major pests.
Keywords: Bemisia argentifolii; Bemisia tabaci; cotton; life-table; rapeseed
Rights: Creative Commons License. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
DOI: 10.1590/S1516-8913201401968
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