@article{fdi:010067633,
  title = {{I}nfluence of host-plant surface chemicals on the oviposition of the cereal stemborer {B}usseola fusca},
  author = {{J}uma, {G}. and {C}lement, {G}. and {A}huya, {P}. and {H}assanali, {A}. and {D}erridj, {S}. and {G}aertner, {C}. and {L}inard, {R}. and {L}e {R}ü, {B}runo and {F}rerot, {B}. and {C}alatayud, {P}aul-{A}ndr{\'e}},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he chemical composition of plant surfaces plays a role in selection of host plants by herbivorous insects. {O}nce the insect reaches the plant, these cues determine host acceptance. {L}aboratory studies have shown that the stem borer {B}usseola fusca ({L}epidoptera: {N}octuidae), an important pest of sorghum and maize in sub-{S}aharan {A}frica, is able to differentiate between host and non-host plant species. {H}owever, no information is available on the cues used by this insect to seek and accept the host plant. {T}hus, the role of surface phytochemical stimuli on host selection and oviposition by {B}. fusca was studied in the laboratory using two host plants, sorghum, {S}orghum bicolor, and maize, {Z}ea mays, and one non-host plant, {N}apier grass, {P}ennisetum purpureum. {T}he numbers of eggs and egg masses deposited on the three plant species were compared first under no-choice and choice conditions. {I}n both cases, more eggs and egg masses were laid on maize and sorghum than on the non-host. {A}rtificial surrogate stems treated with a water or chloroform surface extract of each plant were then compared with surrogate stems treated with, respectively, water or chloroform as controls, under similar conditions. {S}urrogate stems treated with plant water extracts did not show an increase in oviposition when compared to controls, indicating that the major compounds in these extracts, i.e., simple sugars and free amino acids, are not significantly responsible for the oviposition preference. {B}y contrast, a chloroform extract of sorghum enhanced oviposition on the surrogate stems compared to the control, while those of maize and {N}apier grass showed no significant effects. {A}nalysis of the chloroform extract of sorghum showed higher amounts of alpha-amyrin, -amyrin, and n-nonacosane compared to those of maize and {N}apier grass. {A} blend of the three chemicals significantly increased oviposition compared to the chloroform-treated control, indicating that these compounds are part of the surface chemical signature of the plant responsible for host recognition and oviposition by {B}. fusca.},
  keywords = {{A}frica ; {L}epidoptera ; {N}octuidae ; {M}aize ; {S}orghum ; {N}apier grass ; {E}picuticular chemistry ; {T}riterpenoids ; alpha-amyrin ; beta-amyrin ; n-alkanes ; {N}onacosane ; {KENYA}},
  booktitle = {},
  journal = {{J}ournal of {C}hemical {E}cology},
  volume = {42},
  numero = {5},
  pages = {394--403},
  ISSN = {0098-0331},
  year = {2016},
  DOI = {10.1007/s10886-016-0704-0},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067633},
}