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  • Open Access


    Variation in susceptibility to insecticides in Bemisia tabaci biotype B fed on different hosts

    Cerna-Chávez E1, Y Martínez-Martínez2, J Landeros-Flores1, L Aguirre-Uribe1, V Sánchez-Valdes1, M Cepeda-Siller1, O Hernández-Bautista2, YM Ochoa-Fuentes*1

    Phyton-International Journal of Experimental Botany, Vol.85, pp. 256-261, 2016, DOI:10.32604/phyton.2016.85.256

    Abstract Bemisia tabaci (Gennaadius) biotype B is one of the most important pests due to the number of hosts and economic losses it produces. Its control is based on the application of chemicals, which has led to resistance problems. However, the host may also influence the induction of resistance to pesticides. Therefore, the present study evaluated the susceptibility of populations of B. tabaci biotype B developed indifferent hosts to three insecticides belonging to different toxicological groups. Bemisia tabaci biotype B populations were collected and reared in six different hosts (three crops and three associated weeds: Solanum lycopersicum, Solanum nigrum, Phaseolus vulgaris,… More >

  • Open Access


    Effect of Eugenia winzerlingii Extracts on Bemisia tabaci and Evaluation of its Nursery Propagation

    A. Cruz-Estrada1,2, E. Ruiz-Sánchez2, I.L. Medina Baizabal1, E. Balam-Uc1 and M. Gamboa-Angulo1,*

    Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 161-170, 2019, DOI:10.32604/phyton.2019.05809

    Abstract The development of plant-derived products to control Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) is an urgent need for production of horticultural crops. Plant extracts and essential oils of several species of the genus Eugenia (Myrtaceae) have shown insecticidal activity. In southern Mexico, leaf extracts from Eugenia winzerlingii showed nematicidal effect but its insecticidal properties have not been explored. Therefore, the objective of this study was to evaluate the insecticidal effect of aqueous and organic extracts from E. winzerlingii leaves on B. tabaci egg, nymph and adult stages, and else to explore its nursery propagation. Then, extracts of this species were obtained… More >

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