Vibrational disruption of feeding behaviors of a vector of plant pathogen

Avosani, Sabina; Berardo, Alice; Pugno, Nicola; Verrastro, Vincenzo; Mazzoni, Valerio; Cornara, Daniele

doi:10.1127/entomologia/2021/1327

Cited by 10 publications

(9 citation statements)

References 52 publications

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“…In conclusion, our study provided new insights regarding the role of P. spumarius male signals in intra‐specific communication and demonstrated that frequency‐modulated and continuous vibrational noises can interfere with crucial behaviors such as mating. Our outcomes, together with the results of previous studies, 26,58 suggest that vibrational stimuli can be used not only to study the behavior of P. spumarius but as deterrent signals as well.…”

Section: Discussionsupporting

confidence: 72%

“…In this light, strategies other than mating disruption to reduce the spread of X. fastidiosa would be preferable, especially those aimed at deterring the persistence of the spittlebug on susceptible hosts (i.e., olive trees) thus interfering with the transmission of the bacterium. In a recent study, a vibrational stimulus based on the P. spumarius female rejection signal deterred the spittlebug feeding behavior when transmitted to sunflower plants, demonstrating that it is possible to reduce the ingestion of xylem sap by using vibrational signals 58 . It would be therefore interesting to assess whether the noise 2 used in our trials could not only reduce mating but also act as a feeding deterrent.…”

Section: Discussionmentioning

confidence: 96%

“…In a recent study, a vibrational stimulus based on the P. spumarius female rejection signal deterred the spittlebug feeding behavior when transmitted to sunflower plants, demonstrating that it is possible to reduce the ingestion of xylem sap by using vibrational signals. 58 It would be therefore interesting to assess whether the noise 2 used in our trials could not only reduce mating but also act as a feeding deterrent. If this or other disruptive signals could be effective also when applied to olive trees, the acquisition and/ or the inoculation of X. fastidiosa could be hampered, since bacterial transmission depends on the abundance of vectors and the time spent feeding on the plant.…”

Section: Discussionmentioning

confidence: 99%

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Application of vibrational signals to study and manipulate an insect vector: the case of Philaenus spumarius (Hemiptera: Aphrophoridae)

Avosani

Ciolli

Verrastro

et al. 2022

Pest Management Science

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BACKGROUND: Vibrational stimuli can support pest management as they provide environmentally friendly methods to manipulate insect pest behaviors. Different vibrational stimuli were used to study and influence the behavior of the meadow spittlebug, Philaenus spumarius, the European vector of Xylella fastidiosa. In playback experiments, we tested the reactions of the spittlebug toward the male calling signals (test 1) and the male-male signal (test 2). In test 3, we evaluated the use of conspecific signals and noises to repel insects/disrupt mating. RESULTS: Test 1 provided new insights regarding the role of the male calling signal in intraspecific communication, in particular that this signal likely does not underlie aggregation or aggression toward conspecifics. Test 2 demonstrated that the malemale signal is used by males to express distress when physically interacting, whilst, when played back into a host plant, it has not any repellent effect on the spittlebug. Test 3A suggested that males exploit short silence gaps to localize the signaling partner, while test 3B showed that a continuous noise with a specific frequency range successfully disrupt mating, as only one male out of 20 localized the female on the plant. CONCLUSION: Playbacks obtained from prerecorded P. spumarius' signals were successfully used to accomplish ethological studies; even so, this approach did not show a real potential to be used as a control strategy. However, noises designed to mask the spittlebug signals significantly disrupted species mating and could integrate other techniques aimed at reducing the spread of X. fastidiosa after appropriate implementation.

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Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

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Application of vibrational signals to study and manipulate an insect vector: the case of Philaenus spumarius (Hemiptera: Aphrophoridae)

Avosani

Ciolli

Verrastro

et al. 2022

Pest Management Science

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“…In addition, the fact that, to date, no members of the subfamily deltocephalinae are known to be cell rupture feeders supports our hypothesis [ 46 ]. Further studies using specific techniques aiming at describing the MLH feeding behavior, e.g., electrical penetration graph (EPG), could clarify this significant aspect [ 60 , 61 ].…”

Section: Discussionmentioning

confidence: 99%

Orientus ishidae (Hemiptera: Cicadellidae): Biology, Direct Damage and Preliminary Studies on Apple Proliferation Infection in Apple Orchard

Dalmaso

Ioriatti

Gualandri

et al. 2023

Insects

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The mosaic leafhopper, Orientus ishidae (Matsumura), is an Asian species widespread in Europe that can cause leaf damage in wild trees and transmit disease phytoplasmas to grapevines. Following an O. ishidae outbreak reported in 2019 in an apple orchard in northern Italy, the biology and damage caused by this species to apples were investigated during 2020 and 2021. Our studies included observations on the O. ishidae life cycle, leaf symptoms associated to its trophic activity, and its capability to acquire “Candidatus Phytoplasma mali,” a causal agent of Apple Proliferation (AP). The results indicate that O. ishidae can complete the life cycle on apple trees. Nymphs emerged between May and June, and adults were present from early July to late October, with the peak of flight between July and early August. Semi-field observations allowed for an accurate description of leaf symptoms that appeared as a distinct yellowing after a one-day exposure. In field experiments, 23% of the leaves were found damaged. In addition, 16–18% of the collected leafhoppers were found carrying AP phytoplasma. We conclude that O. ishidae has the potential to be a new apple tree pest. However, further studies are required to better understand the economic impact of the infestations.

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“…Furthermore, two recent reviews focused on the role of psyllids and phytophagous mites as vectors of plant pathogens (Moreno et al 2021;de Lillo et al, 2021). Novel tools for plant pathogen vector management has been proposed, as the vibrational disruption approach against (Avosani et al 2021) and the ATP synthase β silencing, which induced female sterility in a leafhopper phytoplasma vector (Galetto et al 2021).…”

mentioning

confidence: 99%