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1 December 2004 Seasonal and Daily Movement of Scaphoideus titanus Ball (Homoptera: Cicadellidae)
Federico Lessio, Alberto Alma
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Abstract

Seasonal and daily flight patterns of Scaphoideus titanus Ball were investigated in northern Italy, throughout a 3-yr period, using yellow sticky traps placed in an experimental vineyard. Capture data were also analyzed in relation to temperature and relative humidity values. The leafhopper was found to be more active from 1800 to 0800 hours, whereas little movement occurred during high light intensity hours. Although the sex ratio was always male biased, no difference in flight periodicity was found between genders. The seasonal flight peak occurred each year in different periods, ranging from the end of June to the beginning of July, depending on mean temperature values. Daily capture increases were correlated with daily minimum and maximum temperatures and were negatively correlated with maximum values of relative humidity. As a result, this species could be crepuscular or nocturnal, and a bimodal flight periodicity is likely.

Federico Lessio and Alberto Alma "Seasonal and Daily Movement of Scaphoideus titanus Ball (Homoptera: Cicadellidae)," Environmental Entomology 33(6), 1689-1694, (1 December 2004). https://doi.org/10.1603/0046-225X-33.6.1689
Received: 15 January 2004; Accepted: 1 July 2004; Published: 1 December 2004
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KEYWORDS
flight activity
grapevine
nearctic leafhopper
phytoplasma vector
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