Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)

Abstract:

Aggregation of the bean flower thrips, Megalurothrips sjostedti (Trybom) (Thysanoptera: Thripidae), has been observed on cowpea, Vigna unguiculata (L.) Walp. To understand the mechanism underpinning this behavior, we studied the responses of M. sjostedti to headspace volatiles from conspecifics in a four-arm olfactometer. Both male and female M. sjostedti were attracted to male, but not to female odor. Gas chromatography/mass spectrometry (GC/MS) analyses revealed the presence of two distinct compounds in male M. sjostedti headspace, namely (R)-lavandulyl 3-methylbutanoate (major compound) and (R)-lavandulol (minor compound); by contrast, both compounds were only present in trace amounts in female headspace collections. A behavioral assay using synthetic compounds showed that male M. sjostedti was attracted to both (R)-lavandulyl 3-methylbutanoate and (R)-lavandulol, while females responded only to (R)-lavandulyl 3-methylbutanoate. This is the first report of a male-produced aggregation pheromone in the genus Megalurothrips. The bean flower thrips is the primary pest of cowpea, which is widely grown in sub-Saharan Africa. The attraction of male and female M. sjostedti to these compounds offers an opportunity to develop ecologically sustainable management methods for M. sjostedti in Africa.

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APA

Niassy., S (2024). Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae). Afribary. Retrieved from https://afribary.com/index.php/works/characterization-of-male-produced-aggregation-pheromone-of-the-bean-flower-thrips-megalurothrips-sjostedti-thysanoptera-thripidae

MLA 8th

Niassy., Saliou "Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)" Afribary. Afribary, 10 Mar. 2024, https://afribary.com/index.php/works/characterization-of-male-produced-aggregation-pheromone-of-the-bean-flower-thrips-megalurothrips-sjostedti-thysanoptera-thripidae. Accessed 11 Jan. 2026.

MLA7

Niassy., Saliou . "Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)". Afribary, Afribary, 10 Mar. 2024. Web. 11 Jan. 2026. < https://afribary.com/index.php/works/characterization-of-male-produced-aggregation-pheromone-of-the-bean-flower-thrips-megalurothrips-sjostedti-thysanoptera-thripidae >.

Chicago

Niassy., Saliou . "Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)" Afribary (2024). Accessed January 11, 2026. https://afribary.com/index.php/works/characterization-of-male-produced-aggregation-pheromone-of-the-bean-flower-thrips-megalurothrips-sjostedti-thysanoptera-thripidae

Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)

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