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Beevor, P. S.; Youm, O.; Hall, David R.; Cork, A.

doi:10.1023/a:1020839221609

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…Three fivecomponent blends without SPEO (MD14, MD16, and MD17) and a four-component blend (MD18) appeared to be attractive to D. pini males (Figure 2a), but the differences between all blends were not statistically significant (Kruskal-Wallis test: H = 4.726, df = 5, p = 0.450). (Z5)-10:OH was a plausible guess-addition as a homolog of (Z5)-12:OH and a component of the sex pheromone of many moths like larch casebearer, Coleoptera laricella [46,47], turnip moth Agrotis segetum [48,49], and millet stem borer Coniesta ignefusalis [50]. The flow of pure air through the tunnel made the insects fly almost in all experiments and could serve as a reference for the lures tested.…”

Section: Wind-tunnel Experimentsmentioning

confidence: 99%

Newly Discovered Components of Dendrolimus pini Sex Pheromone

Rudziński

Staszek

Asztemborska

et al. 2022

Insects

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The pine-tree lappet moth, D. pini, is a harmful defoliator of pine forests in Europe and Asia and a potentially invasive species in North America. The lures for trapping D. pini males based on two known components of its sex pheromone appeared weakly attractive to male moths. Identification of all components of the sex pheromone might allow for the development of more effective lures. The pheromone was sampled from virgin females using SPME and analyzed using gas chromatography coupled with mass spectrometry. Four new likely components ((Z5)-dodecenal, (Z5)-dodecen-1-ol, (Z5)-decen-1-yl acetate, (Z5)-tetradecen-1-yl acetate) and two known components ((Z5,E7)-dodecadienal, (Z5,E7)-dodecadien-1-ol) were identified based on comparison against authentic standards, Kováts indices and spectra libraries. The samples also contained several sesquiterpenes. Wind tunnel and field experiments showed that some blends of synthetic pheromone components alone or enriched with Scots pine essential oil (SPEO) were attractive to D. pini males. One component—(Z5)-decen-1-yl acetate—had a repelling effect. The presented knowledge of D. pini sex pheromone provides a basis for developing optimal lures for monitoring or controlling insect populations.

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Section: Wind-tunnel Experimentsmentioning

confidence: 99%

Newly Discovered Components of Dendrolimus pini Sex Pheromone

Rudziński

Staszek

Asztemborska

et al. 2022

Insects

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Pheromone-mediated mating disruption in the millet stem borer, Coniesta ignefusalis (Lepidoptera: Pyralidae)

et al. 2012

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The millet stem borer, Coniesta ignefusalis Hampson (Lepidoptera: Pyralidae), is a major pest of pearl millet in the Sahelian region of Africa. The female sex pheromone has been identified and synthesized, and previous research had shown that the synthetic pheromone could cause high levels of reproductive communication disruption in small plots when released at rates of 640 mg/ha/day, using PVC resin formulation renewed every seven days to maintain efficiency. In the present research, in experiments in farmers' fields in Niger, 86.8% (SE = 2.6%) communication disruption was achieved when polyethylene vials loaded with 0.5 mg pheromone at 400 dispensers/ha were used and replaced every 21 days. Polyethylene vials loaded with 80 mg pheromone gave uniform, zeroorder release at approximately 0.05 mg/day at 27 °C. Experiments carried out on replicated 0.5 ha plots in farmers' fields in Niger using a single application of these dispensers at 400 dispensers/ha resulted in at least 99% suppression of pheromone trap catches of male C. ignefusalis moths in treated plots relative to numbers in untreated plots for up to 3 months. However, sampling the central portions of these plots before and after harvest showed no significant differences in infestation, damage or yield loss between plots treated with pheromone and untreated plots. This may have been because of small plot size and the immigration of mated female moths into the treated plots which negated any reduction of mating of females within the treated plots. Comparisons of numbers of male C. ignefusalis moths in traps baited with the standard 0.5 mg monitoring lures and those baited with the 80 mg disruption dispensers showed catches in the latter were only 10-20% of those in the former; indicating high level communication disruptions in traps with high dose dispensers. Implications of using insect synthetic pheromones in the development of integrated management of C. ignefusalis in pearl millet cropping systems in the Sahel are discussed.

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Cited by 2 publications

References 32 publications

Newly Discovered Components of Dendrolimus pini Sex Pheromone

Newly Discovered Components of Dendrolimus pini Sex Pheromone

Pheromone-mediated mating disruption in the millet stem borer, Coniesta ignefusalis (Lepidoptera: Pyralidae)

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