@article{fdi:010049674,
  title = {{W}ithin-field damage and distribution patterns of the stalk borer, {E}ldana saccharina({L}epidoptera : {P}yralidae), in sugarcane and a comparison with nematode damage},
  author = {{B}erry, {S}. {D}. and {L}eslie, {G}. {W}. and {S}paull, {V}. {W}. and {C}adet, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he occurrence of {E}ldana saccharina ({L}epidoptera: {P}yralidae) was monitored in grids represented by plots in 12 nematicide trials in {S}outh {A}frican sugarcane fields. {T}he trials encompassed a total of eight plant cane crops and 22 ratoon crops and were situated within commercial cane fields. {S}everal measurements were made to characterize the damage caused by {E}. saccharina. {T}hese included the number of internodes per stalk, the percentage of internodes damaged and the percentage of stalks damaged. {T}he mapping of {E}. saccharina infestation in plant crops of sugarcane showed that the borders of the trials were as infested as the centre, indicating invasion from outside the field plus internal spread within the field. {R}atoon crops were less infested than plant crops. {T}his could be explained by a shorter ratoon crop cycle and by the fields having areas that were more suitable for the borer than elsewhere. {T}he location of these preferred areas could be predicted from one ratoon crop to the next but was not related to the distribution of the borer in the plant crop. {T}his situation was thought to explain the apparent stabilization of {E}. saccharina infestation in ratoon cane. {B}ecause the borer was found at harvest only in stalks with more than 14 to 16 internodes, it appeared that the oldest shoots, or the shoots with the greatest growth potential, attracted the insect, possibly due to their higher nitrogen content, which would stimulate growth. {A}ll the trials were on sandy soil, and crop loss from nematodes was greater than that caused by {E}. saccharina.},
  keywords = {borer ; {E}ldana saccharine ; nematodes ; sugarcane},
  booktitle = {},
  journal = {{B}ulletin of {E}ntomological {R}esearch},
  volume = {100},
  numero = {4},
  pages = {373--385},
  ISSN = {0007-4853},
  year = {2010},
  DOI = {10.1017/s0007485309990319},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049674},
}