Innate olfactory responses of female and male parasitoid<i>Apanteles taragamae</i>Viereck (Hymenoptera: Braconidae) toward host plant infested by the cucumber moth<i>Diaphania indica</i>Saunders (Lepidoptera: Crambidae)

Nurkomar, Ihsan; Buchori, Damayanti; Taylor, DeMar; Kainoh, Yooichi

doi:10.1080/09583157.2017.1401977

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…We also discovered that male and female mirid beetles react differently to tetradecane. This agrees with previous studies showing that host plant volatiles were more attractive to female adults, while sex pheromones were often more strongly responded by males than by females in locating their mating partners ( Groot et al, 2005 ; Nurkomar et al, 2017 ).…”

Section: Discussionsupporting

confidence: 92%

The role of tetradecane in the identification of host plants by the mirid bugs Apolygus lucorum and Adelphocoris suturalis and potential application in pest management

Yin

et al. 2022

Front. Physiol.

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The mirid bugs Apolygus lucorum and Adelphocoris suturalis are considered serious pests of many crops in China, the host plant recognition of these pests remains unclear. The current study investigated the vital odor cues of two mirid bugs and evaluated the role of olfactory recognition in host recognition. The GC-EAD response of mirid bugs to volatiles of their host plant Phaseolus vulgaris was tested. Tetradecane, 2-propyl-1-pentanol, and dodecanal elicited strong EAG responses by mirid bugs and were tested with field experiments. The results indicated tetradecane was significantly more attractive than other attractants, yielding 30.33 ± 2.19 mirid bugs trapped during 7 days. The selected response rates to tetradecane were above 60%, which was most attractive to female A. lucorum at 1.5 mg/ml. Among seven tetradecane derivatives, tetradecane and tetradecanoic acid were the most potent attractants to A. lucorum and A. suturalis. Tetradecane was present in the volatiles of 10 common hosts, and their difference in relative content was significant. The presence of tetradecane seemed relevant to the olfactory response intensity of two mirid bugs towards the different host plants. The artificial supplement of tetradecane increased the attractive effect of host plants. These results suggested that tetradecane plays a vital role in the olfactory selection by two mirid bugs, and it can be made into field baits as a novel ecological strategy to manage these pests with widely reported pesticide resistance. However, results suggested host recognition is not entirely dependent on odor cues. We demonstrated that A. suturalis and A. lucorum adults have similar olfactory recognition mechanisms to their hosts in long-distance host selection. While, the differences in host plant selection between the two pests should occur in close range due to differences in gustatory or tactile sensory organs of A. lucorum and A. suturalis.

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Section: Discussionsupporting

confidence: 92%

The role of tetradecane in the identification of host plants by the mirid bugs Apolygus lucorum and Adelphocoris suturalis and potential application in pest management

Yin

et al. 2022

Front. Physiol.

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“…Of the parasitoids of M. vitrata, Dannon et al (2010) showed that A. taragamae, a solitary endoparasitoid, preferred volatiles from M. vitrata-infested cowpea plants, as compared to blank air, in olfactometer bioassays, although the compounds mediating this interaction were not determined. The preference of this parasitic wasp for the odour of infested plants has also been investigated in the context of another host species (Nurkomar et al 2017). Similarly, Souna et al (2019) demonstrated the attraction of Therophilus javanus Bhat & Gupta (Hymenoptera: Braconidae) to the odour of M. vitrata caterpillar-damaged cowpea flowers and pods.…”

Section: Discussionmentioning

confidence: 99%

Identification of Semiochemicals from Cowpea, Vigna unguiculata, for Low-input Management of the Legume Pod Borer, Maruca vitrata

et al. 2020

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Cowpea, Vigna unguiculata L. Walp. (Fabaceae), is one of the most important food legumes grown on the African continent, as it provides an affordable source of dietary protein. Yields of cowpea are significantly reduced through damage by legume pod-borer, Maruca vitrata (Lepidoptera: Crambidae), caterpillars to flowers, tender leaves and pods. Semiochemical-based strategies are considered as environmentally benign and affordable for pest management, particularly on smallholder farms. In this study, we investigated the importance of cowpea flower volatiles as host location cues for egg-laying M. vitrata, and herbivore-induced plant volatiles (HIPVs) as M. vitrata repellents and natural enemy (Apanteles taragamae and Phanerotoma syleptae parasitoid) attractants. In oviposition choice assays, M. vitrata laid more eggs on flowering cowpea plants than non-flowering plants. Coupled gas chromatography-electrophysiology (GC-EAG) analysis using the antennae of female M. vitrata and an extract of flower volatiles collected by dynamic headspace collection revealed the presence of five EAG-active components that were identified by coupled GCmass spectrometry (GC-MS) analysis as benzaldehyde, benzyl alcohol, acetophenone, a vinylbenzaldehyde isomer and (E)cinnamaldehyde. A synthetic blend of the identified compounds, prepared using 3-vinylbenzaldehyde, induced M. vitrata to lay as many eggs on non-flowering cowpea as on flowering plants. The moths also preferred laying eggs on intact plants compared to M. vitrata-infested plants. As the emission of EAG-active floral compounds was determined to be lower in the headspace of infested cowpea flowers, the role of HIPVs emitted by M. vitrata-damaged leaves was also investigated. Of the compounds induced by larval damage, (E)-DMNT, indole, n-hexyl acetate, 1-octen-3-ol and linalool were shown by GC-EAG to possess electrophysiological activity. A synthetic blend of the EAG-active compounds, using racemic 1-octen-3-ol and linalool, significantly reduced egg numbers on flowering cowpea. Larval and egg parasitoids, i.e. A. taragamae and Ph. syleptae, respectively, of M. vitrata both preferred the Ytube olfactometer arm treated with synthetic (E)-DMNT, whereas preference for racemic linalool and (E)-nerolidol was dose-dependent in A. taragamae. Our results provide the platform for the development of future semiochemical-based pest management strategies against M. vitrata on smallholder farms in West Africa.

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“…In fact, previous studies indicated that males usually respond more strongly to sex pheromones than females in locating mating partners, while host plant volatiles were more attractive to female adults. For example, male antennae of Heliothis virescens and H.sub exa were more responsive to the major sex pheromone compound, (Z)-11-hexadecenal, than were female antennae (Groot et al 2005); female Apantelest aragamae responded signi cantly longer to the volatiles of host plants than to clean air, while male adults responded signi cantly longer to clean air rather than to host plants (Nurkomar et al 2017). In this paper, female mirid bugs were found to be attracted by two concentrations of tetradecane; however, the compound elicited no attractiveness to male adults at lower concentrations.…”

Section: Discussionmentioning

confidence: 99%

The role of tetradecane in the identification of host plants by the pest bugs Apolygus lucorum and Adelphocoris suturalis

Yin

et al. 2022

Preprint

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Apolygus lucorum and Adelphocoris suturalis are considered serious pests to many cultures in China. Safe alternatives are needed to manage these mirid pests. The current study tested the olfactory responses of mirid bugs to cotton leaves, Phaseolus vulgaris pods, and its ethanol extracts. The results showed that P. vulgaris pods extracts were attractive to mirid bugs, predominantly female A. lucorum. Seven compounds from volatiles of the extract were selected to measure electrophysiological (EAG) responses of mirid bugs. Tetradecane, 2-propyl-1-pentanol, and dodecanal showed strong EAG responses in mirid bugs and, thus, used for field experiments. The results exhibited that the tetradecane showed a significantly higher attraction than other attractants with 30.33 ± 2.19 mirid bugs trapped during seven days. Lab trials showed a significant female mirid bug attraction towards tetradecane. The selected-response rates were above 60%, and it was the most attractive to females A. lucorum at the concentration of 1.5 mg/mL. Among seven tetradecane derivatives, tetradecane and tetradecanoic acid were the best attractants to A. lucorum and A. suturalis at specific concentrations. GCMS detection showed that tetradecane was present in the volatiles of 10 common hosts, and the difference of relative content was significant. The presence of tetradecane could modulate the responses of mirid bugs towards host plants suggesting that tetradecane plays a vital role in the olfactory selection of mirid bugs, while host recognition of these pests depends on many kinds of sensory cues

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Innate olfactory responses of female and male parasitoidApanteles taragamaeViereck (Hymenoptera: Braconidae) toward host plant infested by the cucumber mothDiaphania indicaSaunders (Lepidoptera: Crambidae)

Cited by 7 publications

References 29 publications

The role of tetradecane in the identification of host plants by the mirid bugs Apolygus lucorum and Adelphocoris suturalis and potential application in pest management

The role of tetradecane in the identification of host plants by the mirid bugs Apolygus lucorum and Adelphocoris suturalis and potential application in pest management

Identification of Semiochemicals from Cowpea, Vigna unguiculata, for Low-input Management of the Legume Pod Borer, Maruca vitrata

The role of tetradecane in the identification of host plants by the pest bugs Apolygus lucorum and Adelphocoris suturalis

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