Duso Carlo, Moret Renzo, Manera Alessandro, Berto Dario, Fornasiero Diego, Marchegiani Gaia, Pozzebon Alberto
Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, Agripolis, Legnaro, 35020 Padova, Italy.
Insects. 2019 Feb 1;10(2):44. doi: 10.3390/insects10020044.
The leafhopper (Fitch) (Hemiptera: Cicadellidae) is native of Northern and Central America where it occurs on wild and cultivated grapes as well as on a number of secondary hosts. This species was recorded for the first time in Europe (Italy, Veneto region) in 2004. Since then it has spread over Northern Italy and Slovenia. Studies on the biology of in America are limited and thus its phenology was investigated on L. and L. plants under field and semi-field conditions. These observations suggest that can complete 2⁻3 generations per year. The development of from first instar nymphs to adults was studied under controlled conditions (about 23 °C). Developmental times lasted from 16.1 days in July⁻August to 19.5 days in September, and this variability was probably due to grape cultivar and plant susceptibility. Data were consistent with the number of generations previously reported. was more abundant on vines close to overwintering sites than on those located 100⁻250 m from these sites and contiguous to commercial vineyards.
叶蝉（菲奇）（半翅目：叶蝉科）原产于北美洲和中美洲，在野生和栽培葡萄以及许多次要寄主上均有出现。该物种于2004年在欧洲（意大利威尼托地区）首次被记录。自那时起，它已扩散至意大利北部和斯洛文尼亚。在美国，对其生物学的研究有限，因此在田间和半田间条件下，对葡萄属植物和欧亚种葡萄植株上的该叶蝉物候进行了调查。这些观察结果表明，该叶蝉每年可完成2至3代。在受控条件下（约23℃）研究了该叶蝉从一龄若虫到成虫的发育过程。发育时间从7月至8月的16.1天到9月的19.5天不等，这种变异性可能归因于葡萄品种和植株易感性。数据与先前报道的代数一致。相较于距离越冬地点100至250米且毗邻商业葡萄园的葡萄藤，靠近越冬地点的葡萄藤上的该叶蝉数量更多。
