Field Attraction of Carob Moth to Host Plants and Conspecific Females

Hosseini, Seyed Ali; Goldansaz, Seyed Hossein; Menken, Steph B. J.; Wijk, Michiel P. van; Roessingh, Peter; Groot, Astrid T.

doi:10.1093/jee/tox218

Cited by 9 publications

(4 citation statements)

References 33 publications

(28 reference statements)

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“…β-Caryophyllene was present in different phenological stages of pomegranate as well as in ripe pistachio. Concentrations of β-caryophyllene in the headspace of the unattractive hosts, unripe pomegranate, and pomegranate flowers, were respectively 5 and 2 times higher than in attractive fruits (Figure 1), which may contribute to the lack of attraction of, in particular, mated female carob moths to these plant sources in the wind tunnel (Figure 2) and in the field [26].…”

Section: Discussionmentioning

confidence: 99%

“…It is recognized as the most important pest in the date industry in the United States [19,20], a key pest of almond in Australia [21], and frequently a problem in stored fruits and nuts in Europe [22]. In the Middle East, E. ceratoniae is the most damaging pest of pomegranate, Punica granatum L. (Lythraceae), in almost all pomegranate production areas, and can cause 30-80% yield loss [23][24][25][26][27]. Pomegranate, its main host in the Middle East, continuously flowers during the growing season, and different phenological stages, from fresh flowers to mature fruits, are present when carob moths are active.…”

Section: Introductionmentioning

confidence: 99%

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Identification of Bioactive Plant Volatiles for the Carob Moth by Means of GC-EAD and GC-Orbitrap MS

et al. 2021

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The aim of this study was to validate a workflow that allows structural identification of plant volatiles that induce a behavioral response in insects. Due to the complexity of plant volatile emissions and the low levels at which these bioactive components tend to occur, gas chromatography-electroantennography (GC-EAD) was applied as the prime differentiator technique, i.e., to indicate particular peaks of interest in the chromatogram. In a next step, the analysis was repeated under identical conditions using GC-Orbitrap mass spectrometry (MS). Combining electron impact (EI) ionization and chemical ionization (CI) with the superior spectral resolution and mass accuracy of the technique enabled straightforward identification of these unknowns, with high confidence in a minute amount of time. Moreover, because of the intrinsic sensitivity of the technique, components that occur at trace amounts but may induce disproportional large behavioral responses are evenly well-identified. We were able to positively identify β-caryophyllene as a bioactive compound in female carob moths. Behavioral attraction was negatively correlated with the amount of β-caryophyllene in host fruits. In an oviposition experiment on filter paper, β-caryophyllene was stimulated in the range of 40–100 ng, while concentrations above 200 ng inhibited oviposition.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of Bioactive Plant Volatiles for the Carob Moth by Means of GC-EAD and GC-Orbitrap MS

et al. 2021

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“…Many studies have documented the “chemical conversation” with the surrounding environment by insects using their remarkable olfactory organs ( Del Socorro et al, 2010 ; Gregg et al, 2010 ; Robert and Iain, 2010 ; Knight and Light, 2013 ). Insect pests can select suitable food sources or oviposition sites by odorous cues provided by plants in the form of volatile emissions announcing their physiological status in the natural environment ( Shiojiri and Karban, 2008 ; Weiss et al, 2011 ; Sun et al, 2012 ; Cha et al, 2017 ; Hosseini et al, 2017 ). Previous study has found some important odorous cues recognized by A. lucorum including butyl acrylate, butyl propionate, diethyl phthalate and methyl levulinate in the host plant volatiles ( Pan et al, 2015a ; Yin et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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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“…An e cient sex pheromone attractant is still missing for the management of Ectomyelois ceratoniae because the major pheromone component is unstable. Interestingly, the combination of female sex pheromone and volatiles from cracked pomegranates have great potential for application in baited trap capture of carob moth (Hosseini et al 2017). Host-plant volatiles combined with female sex pheromone, have broad application prospects in integrated pest management (IPM) strategies.…”

Section: Introductionmentioning

confidence: 99%

Host-Plant Volatiles Enhance the Attraction of Cnaphalocrocis medicals (Lepidoptera: Crambidae) to Sex Pheromone

Liu

Yao

et al. 2021

Preprint

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Cnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) is a notorious pest of rice, Oryza sativa L.(Poaceae). Sex pheromone and host-plant volatiles can trap C. medinalis separately. To improve the trap efficiency of sex pheromone, we first tested the synergistic effect of 8 host-plant volatiles, including 2-Phenylethanol, 1-Hexanol, 1-Heptanol, (Z)-3-Hexenal, (E)-2-Hexenal, Octanal, Valeraldehyde, and Methyl Salicylate on the attraction of C. medinalis to the female-produced sex pheromone in electroantennography. The addition of (E)-2-Hexenal, Methyl Salicylate, Valeraldehyde, and (Z)-3-Hexenal increased electroantennogram response of C. medinalis to sex pheromone. Further testing of the mixtures of these four compounds and sex pheromone in wind tunnel experiments indicated that additive (E)-2-Hexenal or Methyl Salicylate stimulated the landing behaviors of both male and female C. medinalis compared with sex pheromone alone. Field evaluations showed that mixtures of sex pheromone and (E)-2-Hexenal or Methyl Salicylate resulted in significantly higher catches to male moths than sex pheromone alone. Using 1:1 and 1:10 combinations of the sex pheromone and (E)-2-Hexenal, showed a synergistic effect of 95% and 110%, respectively. Furthermore, 1:1 and 1:10 mixtures of the sex pheromone and Methyl Salicylate exhibited a synergistic effect of 69% and 146%, respectively. These results may provide the basis for developing efficient pest management strategies against C. medinalis using host-plant volatiles and insect sex pheromones.

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Field Attraction of Carob Moth to Host Plants and Conspecific Females

Cited by 9 publications

References 33 publications

Identification of Bioactive Plant Volatiles for the Carob Moth by Means of GC-EAD and GC-Orbitrap MS

Identification of Bioactive Plant Volatiles for the Carob Moth by Means of GC-EAD and GC-Orbitrap MS

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

Host-Plant Volatiles Enhance the Attraction of Cnaphalocrocis medicals (Lepidoptera: Crambidae) to Sex Pheromone

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