A pheromone analogue affects the evaporation rate of (+)‐disparlure in <i>Lymantria dispar</i>

Sollai, Giorgia; Murgia, Sergio; Secci, Francesco; Frongia, Angelo; Cerboneschi, A; Masala, Carla; Liscia, Anna Maria; Crnjar, Roberto Massimo; Solari, Paolo

doi:10.1002/ps.3609

Cited by 3 publications

(2 citation statements)

References 39 publications

(58 reference statements)

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“…Following anesthesia on ice, each moth was restrained with insect pins ventral side up on a Sylgard-coated Petri dish in a physiological saline solution (g/L: 0.7 NaCl, 0.48 KCl, 1.14 MgCl 2 , 0.11 CaCl 2 , 63.8 glucose, 0.54 KOH; final pH 6.59; Sollai et al, 2014a).…”

Section: Dissections Of the Terminal Abdominal Ganglion (Tag)mentioning

confidence: 99%

Octopamine modulates the activity of motoneurons related to calling behavior in the gypsy moth Lymantria dispar

et al. 2018

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A morphofunctional investigation of the different neuronal subpopulations projecting through each of the nerves IV-VI emerging bilaterally from the terminal abdominal ganglion (TAG) was correlated with the octopaminergic activity in the ganglion that controls the ovipositor movements associated with calling behavior in the female gypsy moth Lymantria dispar. Tetramethylrodamine-dextran backfills from nerve stumps resulted in a relatively low number of TAG projections, ranging from 12 to 13 for nerve pair IV, 12 to 14 for nerve pair V, and 8 to 9 for nerve pair VI. Furthermore, as assessed by electrophysiological recordings, a number of fibers within each of these nerves displays spontaneous tonic activity, also when the ganglion is fully disconnected from the ventral nerve cord (VNC). Octopamine (OA) applications to the TAG strongly enhanced the activity of these nerves, either by increasing the firing rate of a number of spontaneously firing units or by recruiting new ones. This octopaminergic activity affected calling behavior, and specifically the muscle activity leading to cycling extensions of the intersegmental membrane (IM) between segments VIII and IX (ovipositor). Our results indicate that in the female gypsy moth the octopaminergic neural activity of the TAG is coupled with extensions and retractions of IM for the purpose of releasing pheromone, where motor units innervated by nerve pair IV appear antagonistic with respect to those innervated by nerve pair V.

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Section: Dissections Of the Terminal Abdominal Ganglion (Tag)mentioning

confidence: 99%

Octopamine modulates the activity of motoneurons related to calling behavior in the gypsy moth Lymantria dispar

et al. 2018

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“…Obviously, in the case of insects, the advantage offered by the use of the PVC method is greatly enhanced by the knowledge and large-scale availability of the sex pheromones. In fact, given their high species specificity, they allow for the control of populations in a well targeted manner [49][50][51][52]. Unfortunately, this is not the case for crayfish yet, because despite decades of research on crayfish chemical communication consolidating the role of pheromones in sexual interactions, the numerous attempts aimed at isolating and characterizing them remained unsuccessful [21,28,29].…”

Section: Evaluation Of Pvc Effectiveness For Long-lasting Release Of mentioning

confidence: 99%

Development of PVC Dispensers for Long-Lasting Release of Attractants for the Control of Invasive Crayfish Populations

et al. 2018

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Invasive alien species (IAS) are considered one of the major threats to biodiversity worldwide, thus requiring severe control strategies. Based on the promising results obtained in the field of insect pest management with polyvinyl chloride (PVC) for long-lasting release of attractants, the main aim of this study was to ascertain the efficacy of PVC/attractant dispensers also in the aquatic environment. Therefore, we developed PVC/food dispensers and evaluated their attractiveness, by means of behavioural bioassays on whole animals, over a 60-day period of continuous use towards the red swamp crayfish Procambarus clarkii, one of the top 100 worst IAS. The attractiveness in PVC of trehalose, leucine and taurocholic acid was also tested. Our results show that the PVC dispensers release the food and are strongly attractive for crayfish over a prolonged time, even if their effectiveness depends on the storage conditions: From 18 days when stored underwater at 23 • C up to 50 days when stored out of the water at −20 • C. Besides, trehalose, leucine and taurocholic acid in PVC resulted in reliable attractants for P. clarkii. The development of PVC dispensers for long-lasting release of attractants may help improve the efficiency of mass trapping strategies in the management and control of invasive crayfish.

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Olfactory sensitivity to major, intermediate and trace components of sex pheromone in Ceratitis capitata is related to mating and circadian rhythm

Sollai

Solari

Crnjar

2018

Journal of Insect Physiology

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A pheromone analogue affects the evaporation rate of (+)‐disparlure in Lymantria dispar

Abstract: The biological and physicochemical interactions between (+)D and OXP-01 may provide valuable information for the optimisation of pheromone-based control strategies for gypsy moths.

Cited by 3 publications

References 39 publications

Octopamine modulates the activity of motoneurons related to calling behavior in the gypsy moth Lymantria dispar

Octopamine modulates the activity of motoneurons related to calling behavior in the gypsy moth Lymantria dispar

Development of PVC Dispensers for Long-Lasting Release of Attractants for the Control of Invasive Crayfish Populations

Olfactory sensitivity to major, intermediate and trace components of sex pheromone in Ceratitis capitata is related to mating and circadian rhythm

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