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Identification of two additional behaviorally active gland constituents of female diatraea saccharalis (Fabricius) (Lepidoptera : Crambidae)

Da Silva, Maycon R. ; Cortes, Angela M.P. ; Svensson, Glenn P. LU ; Löfstedt, Christer LU ; Lima, Eraldo R. and Zarbin, Paulo H.G. (2021) In Journal of the Brazilian Chemical Society 32(1). p.225-230
Abstract

The sugarcane borer, Diatraea saccharalis (Fabricius), is the major pest insect attacking sugarcane crops in Brazil. Population control by insecticide treatment is not efficient due to simultaneous presence of all developmental stages of the insect throughout the year, and alternative control methods are needed. Two female-produced sex pheromone components, (Z,E)-hexadeca-9,11-dienal and (Z)- hexadec-11-enal, have previously been reported to elicit antennal activity and behavioral response of males in flight tunnel experiments. However, the attractiveness of these compounds in field tests has been very low. In this study, two additional female-produced compounds in D. saccharalis eliciting consistent antennal response in males were... (More)

The sugarcane borer, Diatraea saccharalis (Fabricius), is the major pest insect attacking sugarcane crops in Brazil. Population control by insecticide treatment is not efficient due to simultaneous presence of all developmental stages of the insect throughout the year, and alternative control methods are needed. Two female-produced sex pheromone components, (Z,E)-hexadeca-9,11-dienal and (Z)- hexadec-11-enal, have previously been reported to elicit antennal activity and behavioral response of males in flight tunnel experiments. However, the attractiveness of these compounds in field tests has been very low. In this study, two additional female-produced compounds in D. saccharalis eliciting consistent antennal response in males were identified as (Z)-hexadec-9-enal and hexadecanal. In flight tunnel assays, the behavioral response to a quaternary blend was significantly higher when compared with the previously identified binary blend. Subtracting (Z)-hexadec-9-enal or hexadecanal from the full blend did not reduce attraction, indicating redundancy in the communication channel. We conclude that additional compounds are part of the sex pheromone of D. saccharalis, which may improve the efficiency of trap lures for monitoring of this pest.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bioassay, Electrophysiology, Sex pheromone, Sugarcane pest
in
Journal of the Brazilian Chemical Society
volume
32
issue
1
pages
6 pages
publisher
Brazilian Chemical Society
external identifiers
  • scopus:85097992164
ISSN
0103-5053
DOI
10.21577/0103-5053.20200171
language
English
LU publication?
yes
id
733486e1-2cbf-4fd1-9366-2bfa95567957
date added to LUP
2021-01-04 14:56:02
date last changed
2021-01-04 14:56:02
@article{733486e1-2cbf-4fd1-9366-2bfa95567957,
  abstract     = {<p>The sugarcane borer, Diatraea saccharalis (Fabricius), is the major pest insect attacking sugarcane crops in Brazil. Population control by insecticide treatment is not efficient due to simultaneous presence of all developmental stages of the insect throughout the year, and alternative control methods are needed. Two female-produced sex pheromone components, (Z,E)-hexadeca-9,11-dienal and (Z)- hexadec-11-enal, have previously been reported to elicit antennal activity and behavioral response of males in flight tunnel experiments. However, the attractiveness of these compounds in field tests has been very low. In this study, two additional female-produced compounds in D. saccharalis eliciting consistent antennal response in males were identified as (Z)-hexadec-9-enal and hexadecanal. In flight tunnel assays, the behavioral response to a quaternary blend was significantly higher when compared with the previously identified binary blend. Subtracting (Z)-hexadec-9-enal or hexadecanal from the full blend did not reduce attraction, indicating redundancy in the communication channel. We conclude that additional compounds are part of the sex pheromone of D. saccharalis, which may improve the efficiency of trap lures for monitoring of this pest.</p>},
  author       = {Da Silva, Maycon R. and Cortes, Angela M.P. and Svensson, Glenn P. and Löfstedt, Christer and Lima, Eraldo R. and Zarbin, Paulo H.G.},
  issn         = {0103-5053},
  language     = {eng},
  number       = {1},
  pages        = {225--230},
  publisher    = {Brazilian Chemical Society},
  series       = {Journal of the Brazilian Chemical Society},
  title        = {Identification of two additional behaviorally active gland constituents of female diatraea saccharalis (Fabricius) (Lepidoptera : Crambidae)},
  url          = {http://dx.doi.org/10.21577/0103-5053.20200171},
  doi          = {10.21577/0103-5053.20200171},
  volume       = {32},
  year         = {2021},
}