@article{fdi:010037620, title = {{D}istribution, pest status and agro-dimatic preferences of lepidopteran stem borers of maize in {K}enya}, author = {{O}ng' amo, {G}eorges and {L}e {R}ΓΌ, {B}runo and {D}upas, {S}t{\'e}phane and {M}oyal, {P}ascal and {C}alatayud, {P}aul-{A}ndr{\'e} and {S}ilvain, {J}ean-{F}ran{\c{c}}ois}, editor = {}, language = {{ENG}}, abstract = {{L}epidopterous stem borers are the main field insect pests that attack maize, {Z}ea mays {L}. in tropical {A}frica. {A} survey was carried during the long and short rain cropping seasons of 2002/2003 across six main agro-climatic zones ({ACZ}s) to determine the spatial distribution of important stem borer species in {K}enya. {A} total of 474 visits were made in the seventy-eight localities conveniently chosen to represent each of the six {ACZ}s. 189,600 stems were checked for infestation, of which 27,799 infested stems were destructively cut and dissected for stem borer larvae identification. {A}n average of 1.4 stem borer larvae were recovered per infested plant. 54.5% of the recovered larvae were identified as {C}hilo partellus ({S}winhoe) ({C}rambidae), 39.7% as {B}usseola fusca ({F}uller) ({N}octuidae), 4.5% as {S}esamia calamistis {H}ampson ({N}octuidae) and 0.8% as {C}hilo orichalcociliellus ({S}trand) ({C}rambidae). {M}inor species present included {E}ldana saccharina {W}alker ({P}yralidae), {S}esamia nonagrioides ({L}efebvre) ({N}octuidae), {S}esamia cretica {L}ederer ({N}octuidae), {S}esamia sp. ({N}octuidae), {S}ciomesa piscator {F}letcher ({N}octuidae), {B}usseola sp near phaia ({N}octuidae), {C}hilo sp, {E}matheudes sp 1 ({P}yralidae) and {E}matheudes sp 2 ({P}yralidae). {F}arms were grouped into respective {ACZ}s for statistical analysis and subsequent comparison of dominant species: {R}esults indicated that {B}. fusca was the dominant stem borer species in high potential zones (highland tropics, moist transitional zone and moist mid-altitude) while the exotic {C}. partellus dominated smallholder farms in low potential zones (dry mid-altitude, dry transional and lowland tropical zone). {W}ithin each {ACZ}s, there was evidence of variation in species proportions between seasons. {T}hese spatio-temporal differences in community structure are discussed in terms of agro-climatic biological adaptations.}, keywords = {{Z}ea mays ; agro climatic zones ; {B}usseola fusca ; {C}hilo partellus {K}enya}, booktitle = {}, journal = {{A}nnales {D}e {L}a {S}ociete {E}ntomologique {D}e {F}rance}, volume = {42}, numero = {2}, pages = {171--177}, ISSN = {0037-9271}, year = {2006}, URL = {https://www.documentation.ird.fr/hor/fdi:010037620}, }