@article{fdi:010073100, title = {{I}nfluence of prolonged dietary experience during the larval stage on novel odour preferences in adults of noctuid stem borer moths ({L}epidoptera : {N}octuidae)}, author = {{P}etit, {C}. and {A}huya, {P}. and {L}e {R}ΓΌ, {B}runo and {K}aiser-{A}rnauld, {L}. and {H}arry, {M}. and {C}alatayud, {P}aul-{A}ndr{\'e}}, editor = {}, language = {{ENG}}, abstract = {{I}n {L}epidoptera, larval dietary experience of volatile cues can induce adult preference for these cues. {H}owever, such induction may require several generations, depending in part on the degree of specialization of the insects. {I}n a previous study, using species of noctuid stem borers with different diet breadths, namely the polyphagous {S}esamia nonagrioides, the oligophagous {B}usseola fusca and monophagous {B}usseola nairobica, it was shown that in {S}. nonagrioides, one generation was enough to induce a preference for vanillin in the resulting gravid females, whereas even two generations failed to induce a response in adults of {B}usseola spp. {I}n this study, we checked whether a higher number of generations of exposure to a vanillin-enriched medium could induce a significant olfactory preference for this medium in the species {B}. fusca and {B}. nairobica, which have narrower host-plant utilization ranges than {S}. nonagrioides. {L}arvae were reared to the adult stage on an artificial diet enriched with vanillin for periods of from 2 to 7 or 8 generations, followed by two-choice tests on gravid females using a {Y}-tube olfactometer. {T}he results showed different responses according to the species: for the oligophagous {B}. fusca, there was no significant effect of the conditioning, while a significant preference for the odours emitted by this new vanillin-enriched diet was recorded for the polyphagous {S}. nonagrioides and monophagous {B}. nairobica, but after different numbers of generations. {I}n conclusion, different diet breadths seem to be associated with different levels of plasticity in the odour preference of adults. {T}he implication of this result for insects' adaptability in a changing landscape is discussed.}, keywords = {{L}epidoptera ; {N}octuidae ; {S}esamia nonagrioides ; {B}usseola fusca ; {B}usseola nairobica ; larval dietary experience ; adult olfactory preference ; {KENYA}}, booktitle = {}, journal = {{E}uropean {J}ournal of {E}ntomology}, volume = {115}, numero = {}, pages = {112--116}, ISSN = {1802-8829}, year = {2018}, DOI = {10.14411/eje.2018.009}, URL = {https://www.documentation.ird.fr/hor/fdi:010073100}, }