Plant Science; Agronomy and Crop Science; Geography, Planning and Development; Biotechnology; Forestry
Abstract :
[en] Description of the subject. The fall armyworm Spodoptera frugiperda (JE Smith) has become one of the most devastating pests of maize and other important economic crops in Africa since 2016. Among the alternatives to chemical insecticides, bioinsecticides are an interesting option that needs to be explored. Objectives. The susceptibility of fall armyworm to seven bioinsecticides available on the West African market was evaluated in Burkina Faso. Method. Bioassays were conducted following the approved IRAC 020 protocol. Results. Spinetoram (LC80 = 85.3 µg·l-1) and spinosad (LC80 = 437.9 µg·l-1) were the most toxic at concentrations below those recommended by the manufacturer, and had control failure likelihoods close to 0%. Bacillus thuringiensis and products based on Azadirachta indica and Carapa procera extracts were less effective (at the manufacturers' recommended doses), even though they showed significant levels of toxicity on young instars. Conclusions. A list of effective bioinsecticides should be communicated for sustainable management of fall armyworm in West Africa.
Abbott S.W., 1925. A method of computing the effectiveness of an insecticide. J. Econ. Entomol., 18, 265-267, doi. org/10.1093/jee/18.2.265a
Ahissou B.R. et al., 2021a. Baseline toxicity data of different insecticides against the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) and control failure likelihood estimation in Burkina Faso. Afr. Entomol., 29(2), 435-444, doi.org/10.4001/003.029.0435
Ahissou B.R. et al., 2021b. Integrated pest management options for the fall armyworm Spodoptera frugiperda in West Africa: challenges and opportunities. A review. Biotechnol. Agron. Soc. Environ., 25(3), 192-207, doi. org/10.25518/1780-4507.19125
Bateman M.L. et al., 2018. Assessment of potential biopesticide options for managing fall armyworm (Spodoptera frugiperda) in Africa. J. Appl. Entomol., 142, 805-819, doi.org/10.1111/jen.12565
Goergen G. et al., 2016. First report of outbreaks of the fall armyworm Spodoptera frugiperda (J E Smith) (Lepidoptera, Noctuidae), a new alien invasive pest in West and Central Africa. PLoS One, 11(10), e0165632, doi.org/10.1371/journal.pone.0165632
Guedes R.N.C., 2017. Insecticide resistance, control failure likelihood and the First Law of Geography. Pest Manage. Sci., 73, 479-484, doi.org/10.1002/ps.4452
Gutiérrez-Moreno R. et al., 2019. Field-evolved resistance of the fall armyworm (Lepidoptera: Noctuidae) to synthetic insecticides in Puerto Rico and Mexico. J. Econ. Entomol., 112(2), 792-802, doi.org/10.1093/jee/ toy372
Harrison R.D. et al., 2019. Agro-ecological options for fall armyworm (Spodoptera frugiperda JE Smith) management: providing low-cost, smallholder friendly solutions to an invasive pest. J. Environ. Manage., 243, 318-330, doi.org/10.1016/j.jenvman.2019.05.011
Houngbo S. et al., 2020. Farmers’knowledge andmanagement practices of fall armyworm, Spodoptera frugiperda (J.E. Smith) in Benin, West Africa. Agriculture, 10(430), 1-15, doi.org/10.3390/agriculture10100430
Isman M.B., 2006. Botanical insecticides, deterrents, and repellents in modern agriculture and an increasingly regulated world. Annu. Rev. Entomol., 51, 45-66, doi. org/10.1146/annurev.ento.51.110104.151146
Kansiime M.K. et al., 2019. Farmer perception of fall armyworm (Spodoptera frugiderda J.E. Smith) and farm-level management practices in Zambia. Pest Manage. Sci., 75, 2840-2850, doi.org/10.1002/ps.5504
Lira E.C. et al., 2020. Resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to spinetoram: inheritance and cross-resistance to spinosad. Pest Manage. Sci., 76(8), 2674-2680, doi.org/10.1002/ps.5812
Montezano D.G. et al., 2018. Host plants of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Americas. Afr. Entomol., 26(2), 286-300, doi.org/10.4001/003.026.0286
Phambala K. et al., 2020. Bioactivity of common pesticidal plants on fall armyworm larvae (Spodoptera frugiperda). Plants, 9(112), 1-10, doi.org/10.3390/plants9010112
Prasanna B.M., Huesing J.E., Eddy R. & Peschke V.M., eds, 2018. Fall armyworm in Africa: a guide for integrated pest management. 1st ed. Mexico: CIMMYT.
Seigler D.S., 1998. Limonoids, quassinoids, and related compounds. In: Plant secondary metabolism, Boston, MA, USA: Springer, 473-485.
Sisay B. et al., 2019. The efficacy of selected synthetic insecticides and botanicals against fall armyworm, Spodoptera frugiperda, in maize. Insects, 10(45), 1-14, doi.org/10.3390/insects10020045
Xiao Y. et al., 2016. Resistance to Bacillus thuringiensis mediated by an ABC transporter mutation increases susceptibility to toxins from other bacteria in an invasive insect. PLoS Pathog., 12(2), e1005450, doi.org/10.1371/journal.ppat.1005450
Zhao Y.-X. et al., 2020. Susceptibility of fall armyworm, Spodoptera frugiperda (J.E. Smith), to eight insecticides in China, with special reference to lambda-cyhalothrin. Pestic. Biochem. Physiol., 168, 104623, doi. org/10.1016/j.pestbp.2020.104623
