@article{fdi:010081287,
  title = {{E}ffectiveness of two biopesticides against the invasive tomato pest {T}uta absoluta},
  author = {{S}arr, {O}. {M}. and {B}al, {A}. {B}. and {F}ossati, {O}dile and {G}authier, {N}athalie},
  editor = {},
  language = {{ENG}},
  abstract = {{T}uta absoluta ({M}eyrick) ({L}epidoptera: {G}elechiidae) is among the most devastating pests worldwide of solanaceous plants, particularly of tomato ({S}olanum lycopersicum {L}.). {S}ince its recent introduction into sub-{S}aharan {A}frica, it has become an additional widespread tomato pest throughout the region. {W}hen no control measures are taken, yield losses caused by {T}. absoluta larvae can reach 100%. {C}hemical control remains the primary management option despite its many adverse effects and increasing inefficiency due to the species' endophytic habits and ability to develop insecticide resistance. {S}afer and more effective alternatives are therefore urgently required. {H}ere, we investigated the effectiveness of two bioinsecticides compared to that of a widely used deltamethrin-based synthetic insecticide, in preventing damage caused by {T}. absoluta larvae to tomato leaves and fruits, thereby affecting tomato yield. {A} field trial was conducted in 2018 and 2019 in northwestern {S}enegal using a randomized complete block design. {D}amage caused by {T}. absoluta affected approximately 65% of total leaf area and 3-24% of the fruits. {D}amage to the leaves caused by other insect species or other factors was less significant. {A}t the dose applied, the chemical insecticide did not significantly reduce the surface area of leaflets affected by {T}. absoluta or other causal agents, the number of {T}. absoluta mines on the leaflets, or the proportion of fruits damaged. {I}n contrast, the azadirachtin and {B}acillus thuringiensis ({B}t) formulations rapidly and significantly reduced damage to both leaves and fruits. {T}he proportion of fruits damaged was reduced by a factor two and the total tomato yield was improved, particularly when the {B}t formulation was used. {I}n addition to their effectiveness in reducing damage caused by {T}. absoluta larvae to tomato leaves and fruit, and increasing the yield of marketable fruits, the viability of these organic alternatives was shown. {T}he scope of our results is discussed in the context of {T}. absoluta control, in particular in integrated pest management programmes for tomato crops.},
  keywords = {azadirachtin ; {B}acillus thuringiensis ; broad-spectrum chemical ; insecticide ; invasive insect species ; {S}outh {A}merican tomato pinworm ; {L}epidoptera ; {G}elechiidae ; {S}olanum lycopersicum ; tomato pest management ; tomato leaf and fruit damage ; sub-{S}aharan {A}frica ; {T}uta absoluta ; {SENEGAL} ; {AFRIQUE} {SUBSAHARIENNE}},
  booktitle = {},
  journal = {{E}ntomologia {E}xperimentalis et {A}pplicata},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[12 p.]},
  ISSN = {0013-8703},
  year = {2021},
  DOI = {10.1111/eea.13047},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081287},
}