We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae).
- Authors
Niassy, Saliou; Tamiru, Amanuel; Hamilton, James G. C.; Kirk, William D. J.; Mumm, Roland; Sims, Cassie; de Kogel, Willem Jan; Ekesi, Sunday; Maniania, Nguya K.; Bandi, Krishnakumari; Mitchell, Fraser; Subramanian, Sevgan
- 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.
- Subjects
PHEROMONES; THRIPS; GAS chromatography/Mass spectrometry (GC-MS); BIOLOGICAL assay; COWPEA diseases &; pests
- Publication
Journal of Chemical Ecology, 2019, Vol 45, Issue 4, p348
- ISSN
0098-0331
- Publication type
Article
- DOI
10.1007/s10886-019-01054-8