Minor components modulate sensitivity to the pheromone antagonist Z11-14:Ac in male lightbrown apple moth, Epiphyas postvittana (Lepidoptera: Tortricidae) in the field
DOI:
https://doi.org/10.30843/nzpp.2018.71.184Keywords:
Epiphyas postvittana, lightbrown apple moth, Lepidoptera, Tortricidae, pheromone, inhibitor, mating disruptionAbstract
Epiphyas postvittana is a major horticultural pest in many countries, including New Zealand. Recently, two minor components (E)-11-tetradecen-1-ol and (E)-11-hexadecenyl acetate were found to increase the attraction of a previously identified two-component sex pheromone (95:5 blend of (E)-11-tetradecenyl acetate [E11-14:Ac] and (E,E)-9,11-tetradecadienyl acetate [E9,E11-14:Ac]) of Epiphyas postvittana. We hypothesised that the interaction between these minor components and the behavioural antagonist (Z)-11-tetradecenyl acetate (Z11-14:Ac) would modulate its antagonistic effect. The effect of increasing the ratio (0.5—10%) of Z11-14:Ac was tested in traps baited with E11-14:Ac and E9,E11-14:Ac (95:5), with or without the addition of the two minor compounds. Catch decreased as the percentage of Z11-14:Ac increased (χ2=108.74; d.f.=9; P<0.001). Overall, more moths were caught in traps baited with four- vs two-component lures (χ2=9.81; d.f.=1; P=0.002); in pair-level comparisons, significant differences in catch number between the two- and four-component lures were observed when the E11-14:Ac : Z11-14:Ac ratio was 99:1 (P=0.031) or 98:2 (P=0.047). The addition of the two minor components mitigated the reduced catch effect due to lower proportions of E11-14:Ac and the presence of 1—2% antagonist.
References
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Cossé AA, Todd JL, Baker TC 1998. Neurons discovered in male <em>Helicoverpa zea</em> antennae that correlate with pheromone-mediated attraction and interspecific antagonism. Journal of Comparative Physiology A 182: 585–594. <a href="https://doi.org/10.1007/s003590050205">https://doi.org/10.1007/s003590050205</a>
El-Sayed AM, Mitchell VJ, Manning LAM, Suckling DM 2011. New sex pheromone blend for the lightbrown apple moth, <em>Epiphyas postvittana</em>. Journal of Chemical Ecology 37: 640–646. <a href="https://doi.org/10.1007/s10886-011-9964-x">https://doi.org/10.1007/s10886-011-9964-x</a>
Horak M, Whittle CP, Bellas TE, Rumbo ER 1988. Pheromone gland components of some Australian tortricids in relation to their taxonomy. Journal of Chemical Ecology 14: 1163–1175. <a href="https://doi.org/10.1007/BF01019344">https://doi.org/10.1007/BF01019344</a>
Juárez ML, Ruiz MJ, Fernández PC, Goane L, Villagrán ME, Arce OEA, Armi-ana A, Páez Jerez PG, de la Vega MH, Vera MT, Groot AT 2016. Communication interference in sympatrically occurring moth species. Entomologia Experimentalis et Applicata 158: 25–33. <a href="https://doi.org/10.1111/eea.12374">https://doi.org/10.1111/eea.12374</a>
Martin N, Moore K, Musto CJ, Linn CE 2016. Flight tunnel response of male European corn borer moths to cross-specific mixtures of European and Asian corn borer sex pheromones: evidence supporting a critical stage in evolution of a new communication system. Journal of Chemical Ecology 42: 51–54. <a href="https://doi.org/10.1007/s10886-015-0656-9">https://doi.org/10.1007/s10886-015-0656-9</a>
Mo J, Glover M, Munro S, Beattie GAC 2006. Evaluation of mating disruption for control of lightbrown apple moth (<em>Lepidoptera</em>: <em>Tortricidae</em>) in citrus. Journal of Economic Entomology 99: 421–426. <a href="https://doi.org/10.1093/jee/99.2.421">https://doi.org/10.1093/jee/99.2.421</a>
Renou M, Guerrero A 2000. Insect parapheromones in olfaction research and semiochemical-based pest control strategies. Annual Review of Entomology 45: 605–630. <a href="https://doi.org/10.1146/annurev.ento.45.1.605">https://doi.org/10.1146/annurev.ento.45.1.605</a>
Rumbo E, Deacon S, Regan L 1993. Spatial discrimination between sources of pheromone and an inhibitor by the light-brown apple moth <em>Epiphyas postvittana</em> (Walker) (<em>Lepidoptera</em>: <em>Tortricidae</em>). Journal of Chemical Ecology 19: 953–962. <a href="https://doi.org/10.1007/BF00992530">https://doi.org/10.1007/BF00992530</a>
Stephens AEA, Suckling DM, El-Sayed AM 2008. Odour quality discrimination for behavioural antagonist compounds in three tortricid species. Entomologia Experimentalis et Applicata 127: 176–183. <a href="https://doi.org/10.1111/j.1570-7458.2008.00694.x">https://doi.org/10.1111/j.1570-7458.2008.00694.x</a>
Suckling DM, Shaw PW 1995. Large-scale trials of mating disruption of lightbrown apple moth in Nelson, New Zealand. New Zealand Journal of Crop and Horticultural Science 23: 127–137. <a href="https://doi.org/10.1080/01140671.1995.9513879">https://doi.org/10.1080/01140671.1995.9513879</a>
Suckling DM, Shaw PW, Khoo JGI, Cruickshank V 1990. Resistance management of lightbrown apple moth, <em>Epiphyas postvittana</em> (<em>Lepidoptera</em>: <em>Tortricidae</em>) by mating disruption. New Zealand Journal of Crop and Horticultural Science 18: 89–98. <a href="https://doi.org/10.1080/01140671.1990.10428077">https://doi.org/10.1080/01140671.1990.10428077</a>
Suckling DM, Sullivan TES, Stringer LD, Butler RC, Campbell DM, Twidle AM, Allen WJ, Mafra-Neto A, El-Sayed AM 2012. Communication disruption of light brown apple moth (<em>Epiphyas postvittana</em>) using a four-component sex pheromone blend. Crop Protection 42: 327–333. <a href="https://doi.org/10.1016/j.cropro.2012.07.009">https://doi.org/10.1016/j.cropro.2012.07.009</a>
Wu H, Xu M, Hou C, Huang LQ, Dong JF, Wang CZ 2015. Specific olfactory neurons and glomeruli are associated to differences in behavioral responses to pheromone components between two <em>Helicoverpa</em> species. Frontiers in Behavioral Neuroscience 9. <a href="https://doi.org/10.3389/fnbeh.2015.00206">https://doi.org/10.3389/fnbeh.2015.00206</a>
Zhang D, Löfstedt C 2015. Moth pheromone receptors: gene sequences, function, and evolution. Frontiers in Ecology and Evolution 3. <a href="https://doi.org/10.3389/fevo.2015.00105">https://doi.org/10.3389/fevo.2015.00105</a>
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2018-07-29
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Horner, R. M., Sullivan, T. E., Sporle, A. M., Stringer, L. D., Manning, L.-A. M., El-Sayed, A. M., & Suckling, D. M. (2018). Minor components modulate sensitivity to the pheromone antagonist Z11-14:Ac in male lightbrown apple moth, Epiphyas postvittana (Lepidoptera: Tortricidae) in the field. New Zealand Plant Protection, 71, 293-298. https://doi.org/10.30843/nzpp.2018.71.184
