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You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Halofenozide affects sexual behaviour, cuticular hydrocarbons and reproduction in the female German cockroach Blattella germanica (Dictyoptera, Blattellidae)

Samira Kilani-Morakchi, Nadia Aribi, Jean-Pierre Farine, Guy Smagghe and Noureddine Soltani (2009)

Halofenozide affects sexual behaviour, cuticular hydrocarbons and reproduction in the female German cockroach Blattella germanica (Dictyoptera, Blattellidae)

BELGIAN JOURNAL OF ZOOLOGY, 139(2):147-155.

Halofenozide, a dibenzoylhydrazine insect growth regulator, was applied topically to female individuals of the most prevalent German cockroach species, Blattella germanica, and its effects on sexual behaviour, cuticular hydrocarbons and reproduction were investigated. Dissection of treated females showed clearly reduced numbers of oocytes and volume of basal oocytes. Interestingly, the ecdysteroid amounts were also significantly lower. Characterization of the cuticular hydrocarbons by gas chromatography showed 13 major compounds, including the female contact sex pheromone precursor. It was clear that halofenozide application resulted in significantly lower amounts of all the investigated cuticular components. Finally, behavioural tests revealed that halofenozide treatment of females caused a significant decrease in sexual receptivity of the untreated conspecific males. Thus, exposure to the ecdysteroid agonist can negatively affect the male's response to a calling female, which is linked with and most likely caused by lesser production of female contact sex pheromone and a delay in the up-regulation of ecdysteroid amounts, and in turn this provoked an obvious lower oocyte number and basal oocyte size as measures of reproduction.

Blattella germanica; Halofenozide; Reproduction; Sexual behaviour; Cuticular hydrocarbons; Ecdysteroids
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology