BACKGROUND: The green leafhopper, Empoasca vitis, is a polyphagous pest of grapevine and tea plants. To date population density is controlled primarily by insecticides and there is a demand for more sustainable controls. To develop a vibrational mating disruption method, the natural occurrence of a ‘disruptive signal’ was investigated. Further, the efficacy of natural and artificial ‘disruptive signals’ was determined. RESULTS: With behavioral trials we described male rivalry and recorded a species-specific disruptive signal (DP). The DP, a single pulse overlapping the competitor male call, interfered with the rival’s ability to locate the female. Laboratory playback disruption trials revealed that the pair formation process was prevented by artificial disturbance noises that included the following features: E. vitis DP, Scaphoideus titanus disturbance noise, and a pure tone (250 Hz). Among these, the pure tone was most efficient at preventing mating. CONCLUSION: Results support development of a vibrational mating disruption method as a control strategy for E. vitis. To simultaneously disrupt the mating of E. vitis and S. titanus, the possibility of applying the S. titanus disturbance noise combined with the pure tone is discussed.

Nieri, R.; Mazzoni, V. (2019). Vibrational mating disruption of Empoasca vitis by natural or artificial disturbance noises. PEST MANAGEMENT SCIENCE, 75 (4): 1065-1073. doi: 10.1002/ps.5216 handle: http://hdl.handle.net/10449/50610

Vibrational mating disruption of Empoasca vitis by natural or artificial disturbance noises

Nieri, R.
Primo
;
Mazzoni, V.
Ultimo
2019-01-01

Abstract

BACKGROUND: The green leafhopper, Empoasca vitis, is a polyphagous pest of grapevine and tea plants. To date population density is controlled primarily by insecticides and there is a demand for more sustainable controls. To develop a vibrational mating disruption method, the natural occurrence of a ‘disruptive signal’ was investigated. Further, the efficacy of natural and artificial ‘disruptive signals’ was determined. RESULTS: With behavioral trials we described male rivalry and recorded a species-specific disruptive signal (DP). The DP, a single pulse overlapping the competitor male call, interfered with the rival’s ability to locate the female. Laboratory playback disruption trials revealed that the pair formation process was prevented by artificial disturbance noises that included the following features: E. vitis DP, Scaphoideus titanus disturbance noise, and a pure tone (250 Hz). Among these, the pure tone was most efficient at preventing mating. CONCLUSION: Results support development of a vibrational mating disruption method as a control strategy for E. vitis. To simultaneously disrupt the mating of E. vitis and S. titanus, the possibility of applying the S. titanus disturbance noise combined with the pure tone is discussed.
Pest control
Leafhopper
Biotremology
Rivalry
Disruptive signals
Environmental noise
Settore AGR/11 - ENTOMOLOGIA GENERALE E APPLICATA
2019
Nieri, R.; Mazzoni, V. (2019). Vibrational mating disruption of Empoasca vitis by natural or artificial disturbance noises. PEST MANAGEMENT SCIENCE, 75 (4): 1065-1073. doi: 10.1002/ps.5216 handle: http://hdl.handle.net/10449/50610
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/50610
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