@article{fdi:010090287,
  title = {{B}iological management options against the fall armyworm {S}podoptera frugiperda causing damage to maize in {S}enegal},
  author = {{S}arr, {O}. {M}. and {B}al, {A}. {B}. and {G}authier, {N}athalie},
  editor = {},
  language = {{ENG}},
  abstract = {{F}all armyworm ({FAW}), {S}podoptera frugiperda, is a major pest of maize worldwide. {S}ince its first report in {W}est {A}frica in 2016, {FAW} has quickly spread causing severe outbreaks and crop losses. {C}hemical control remains the primary management option despite its adverse effects and its increasing inefficiency but safer and more effective alternatives exist. {H}ere, we investigated the effectiveness of two bioinsecticides, a microbial and a botanical ones, in reducing the damage caused by {FAW} larvae to maize leaves and cobs, and their effects on yield. {T}his was compared to that of two chemicals commonly used against {FAW}, deltamethrin- and a binary lambda-cyhalothrin and acetamiprid-based insecticides. {A} field trial was conducted in 2018 and 2019 in northwestern {S}enegal using a randomized complete block design. {W}ithout treatment, 1-25% of the total leaf area and 3-44% of the maize cobs were damaged by {FAW}. {D}espite different levels of damage between the two years, the same pattern was revealed with insecticide applications. {A}lthough deltamethrin insecticide may, in some years, reduce defoliation and cob damage, the effect of chemical insecticides, if any, was not reproducible, and maize yield was not improved. {I}n contrast, azadirachtin and {B}acillus thuringiensis formulations significantly reduced {FAW} damage on leaves. {T}he proportion of damaged cobs could also be reduced by a factor of between 2 and 7.5 and the total maize yield was at least doubled. {T}he scope of our results is discussed in the context of {S}. frugiperda control, particularly in {I}ntegrated {P}est {M}anagement programmes and farmers' practices.},
  keywords = {{B}ioinsecticide ; {F}all armyworm ; {M}aize ; {S}ustainable pest management ; {W}est {A}frica ; {SENEGAL}},
  booktitle = {},
  journal = {{P}hytoparasitica},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[18 ]},
  ISSN = {0334-2123},
  year = {2023},
  DOI = {10.1007/s12600-023-01109-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090287},
}