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Mating Disruption of Helicoverpa armigera (Lepidoptera: Noctuidae) on Processing Tomato: First Applications in Northern Italy

Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Viale G. Fanin, 42, 40127 Bologna, Italy
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Insects 2020, 11(4), 206; https://doi.org/10.3390/insects11040206
Received: 20 December 2019 / Revised: 13 March 2020 / Accepted: 19 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue From Insect Pheromones to Mating Disruption: Theory and Practice)
Helicoverpa armigera is a polyphagous and globally distributed pest. In Italy, this species causes severe damage on processing tomato. We compared the efficacy of mating disruption with a standard integrated pest management strategy (IPM) in a two-year experiment carried out in Northern Italy. Mating disruption registered a very high suppression of male captures (>95%) in both growing seasons. Geostatistical analysis of trap catches was shown to be a useful tool to estimate the efficacy of the technique through representation of the spatial pattern of captures. Lower fruit damage was recorded in mating disruption than in the untreated control plots, with a variable efficacy depending on season and sampling date. Mating disruption showed a higher efficacy than standard IPM in controlling H. armigera infestation in the second season experiment. Mating disruption showed the potential to optimize the H. armigera control. Geostatistical maps were suitable to draw the pheromone drift out of the pheromone-treated area in order to evaluate the efficacy of the technique and to detect the weak points in a pheromone treated field. Mating disruption and standard IPM against H. armigera were demonstrated to be only partially effective in comparison with the untreated plots because both strategies were not able to fully avoid fruit damage. View Full-Text
Keywords: mating disruption; cotton bollworm; processing tomato; geostatistics mating disruption; cotton bollworm; processing tomato; geostatistics
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Burgio, G.; Ravaglia, F.; Maini, S.; Bazzocchi, G.G.; Masetti, A.; Lanzoni, A. Mating Disruption of Helicoverpa armigera (Lepidoptera: Noctuidae) on Processing Tomato: First Applications in Northern Italy. Insects 2020, 11, 206.

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