Isopentyl Butanoate: Aggregation Pheromone of the Brown Spiny Bug, Clavigralla tomentosicollis (Hemiptera: Coreidae), and Kairomone for the Egg Parasitoid Gryon sp. (Hymenoptera: Scelionidae)

Kpongbe, Hilaire; Berg, Johnnie Van den; Khamis, Fathiya M.; Tamò, Manuele; Torto, Baldwyn

doi:10.1007/s10886-019-01081-5

Cited by 8 publications

(6 citation statements)

References 25 publications

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“…The main chemical classes of volatiles in the secretion of M. fuscipes (as identified by GC–MS) were esters, carboxylic acids, and alkanes. Overall, this composition is in accordance with the chemicals recorded for other leaf‐footed stink bugs (Hemiptera: Coreidae) 35–41 . In our observations with different species, coreid leaf‐footed stink bugs produced secretions containing higher esters content (see Table S2).…”

Section: Discussionsupporting

confidence: 88%

“…Overall, this composition is in accordance with the chemicals recorded for other leaf-footed stink bugs (Hemiptera: Coreidae). [35][36][37][38][39][40][41] In our observations with different species, coreid leaf-footed stink bugs produced secretions containing higher esters content (see Table S2). Regarding sexual differences, only female stink bugs contained citronellol and eugenol.…”

Section: Discussionmentioning

confidence: 74%

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Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Zhong,

Fox,

Ling

et al. 2024

Pest Management Science

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BACKGROUNDGiven the chemical diversity within stink bugs scent glands, they can be convenient models for bioprospecting novel pest control products. Preliminary behaviour observations indicated that adult Mictis fuscipes stink bugs secrete liquid droplets when defending against Solenopsis invicta fire ants, killing them within minutes. Hence, this study aimed to analyse the chemical composition of the metathoracic scent gland secretions of M. fuscipes adults, as well as assess their biological activities against fire ants.RESULTSBioassaying fire ants against secretions of several local stink bugs confirmed that the defensive secretions of two Mictis species are significantly more lethal, where M. fuscipes was the most lethal. Volatiles chromatography analysis indicated the secretions of female and male M. fuscipes stink bugs contains 20 and 26 components, respectively, chiefly hexanoic acid and hexyl hexanoate. Five compounds were consistently present in the secretion of female adults: hexyl hexanoate, hexanoic acid, hexyl acetate, hexyl butyrate, and eugenol. These yielded a strong electrophysiological antennal (EAD) response from S. invicta workers, female alates and males, where hexyl acetate showed the strongest response. The combination of these five compounds proved strongly repellent to S. invicta. When tested singly, hexanoic acid, hexyl butyrate, hexyl hexanoate, and eugenol were repellent to S. invicta, but hexyl acetate seemed slightly attractive. Additionally, the same mixture of five components exhibited strong contact and fumigant toxicity towards S. invicta workers, eugenol being the strongest.CONCLUSIONDefensive chemicals of M. fuscipes exhibit robust biological activity against S. invicta and could inspire the development of biopesticides. © 2024 Society of Chemical Industry.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 74%

Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Zhong,

Fox,

Ling

et al. 2024

Pest Management Science

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“…Binary count data collected using still air and two‐arm olfactometers are commonly analysed using a χ 2 goodness of fit test (Du et al, 2018; Kpongbe et al, 2019; Osei‐Owusu et al, 2020) or binomial exact test (Roberts et al, 2019; Meza et al, 2020). Such analyses seek to identify deviations from an expected frequency (χ 2 ) or 50:50 probability distribution (binomial exact test).…”

Section: Discussionmentioning

confidence: 99%

Scents and sensibility: Best practice in insect olfactometer bioassays

Roberts

Clunie

Leather

et al. 2023

Entomologia Exp Applicata

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Olfactometers have been used for more than 100 years and are integral to experimental chemical ecology. Studies utilising olfactometer bioassays form the foundation for understanding the behavioural responses of invertebrates to chemical stimuli under standardised laboratory conditions. Widely used olfactometry apparatuses include two‐arm olfactometers for binary responses through to four‐ and six‐arm arenas to evaluate more complex behaviours. Despite its prevalence in chemical ecology studies, there has never been a review of experimental best practice in olfactometry. This review critically evaluates both olfactometry methods and applications as well as experimental design and analysis. We aim to outline a standard of good practice to improve experimental design and reporting for studies involving olfactometry, thereby establishing a reference guide to build a robust experimental workflow for olfactometry bioassays.

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“…Pheromones released by hosts or prey may serve as kairomonal cues for parasitoids or predators, which can be used as kairomones for natural enemies to locate and control pests ( Vaello et al, 2017 ). Common chemical signals released by the host or prey mainly include sex pheromones ( Boo and Yang, 2000 ; Aukema and Raffa, 2005 ; Branco et al, 2006 ; Pekas et al, 2015 ; Shapira et al, 2018 ; Wang et al, 2018 ), alarm pheromones ( Pickett et al, 2013 ; Wang et al, 2019 ; Liu et al, 2021 ; Qin et al, 2022 ), and aggregation pheromones ( Kpongbe et al, 2019 ). To date, pheromone use is a promising way not only to monitor insect pests but to suppress their population growth by improving natural control function in agro-ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Perception and kairomonal response of the coccinellid predator (Harmonia axyridis) to the fall armyworm (Spodoptera frugiperda) sex pheromone

et al. 2023

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Pheromone cues released from hosts or prey are of crucial importance to natural enemies for prey and habitat location. The use of herbivorous insect sex pheromones has long been considered as a potential pest control alternative that is non-toxic and harmless to beneficials. We hypothesized that Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), a major predatory coccinellid beetle of the devastating migratory pest Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), could perceive and use the sex pheromone of S. frugiperda to locate its habitat. Here we tested the electrophysiological and behavioral responses of H. axyridis to the two components Z7-12:Ac and Z9-14:Ac of S. frugiperda sex pheromone by using electroantennography (EAG) and Y-tube bioassay. The 3D modeling of H. axyridis odorant-binding proteins (HaxyOBPs) and molecular docking were also performed. The results showed that both female and male H. axyridis exhibited significantly higher electrophysiological and behavioral responses to Z9-14:Ac at the concentrations of 0.001, 0.01, and 0.1 μg/μL, while no significant electrophysiological and behavioral responses of H. axyridis were observed to Z7-12:Ac. The blend of Z7-12:Ac and Z9-14:Ac at the ratio of 1:100 had a significant attraction to both male and female H. axyridis at the concentrations of 0.01 and 0.1 μg/μL based on electrophysiological and behavioral assays, but no significant behavioral responses were observed at the ratios of 1:9. According to the 3D modeling of HaxyOBPs and molecular docking, HaxyOBP12 has a good affinity with Z9-14:Ac. Z9-14:Ac is bound to the HaxyOBP12 by hydrogen bonding and hydrophobic interactions. However, there were no credible docking results between HaxyOBPs and Z7-12:Ac. Our findings revealed that H. axyridis can perceive Z9-14:Ac and could use it as a chemical cue to locate prey habitat. We speculated that Z7-12:Ac, which showed some antagonistic effect toward the response of H. axyridis to Z9-14:Ac, could improve the adaptability of S. frugiperda in the presence of predators. This study provides new insights into the application of pheromones to manipulate natural enemy behavior for pest control.

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Isopentyl Butanoate: Aggregation Pheromone of the Brown Spiny Bug, Clavigralla tomentosicollis (Hemiptera: Coreidae), and Kairomone for the Egg Parasitoid Gryon sp. (Hymenoptera: Scelionidae)

Cited by 8 publications

References 25 publications

Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Scents and sensibility: Best practice in insect olfactometer bioassays

Perception and kairomonal response of the coccinellid predator (Harmonia axyridis) to the fall armyworm (Spodoptera frugiperda) sex pheromone

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