Monitoring of the leafhopper Scaphoideus titanus and symptoms associated with yellows diseases in vineyards in the Viticulture Region of Moldova, Romania

Paper ID: 
New solutions for a better and sustainable agriculture
Published under CEST2021
Proceedings ISBN: 978-618-86292-1-9
Proceedings ISSN: 2944-9820
(Corresponding) Chireceanu C., Mihu G., Teodoru A., Puscalau M.
Monitoring action is a key component of integrated pest management programs that aims to obtain valuable early data regarding the pests and their crop damages. By this, it is possible to select and apply the most appropriate strategies for pest control before reaching to economical threshold. The leafhopper Scaphoideus titanus (Hemiptera: Cicadellidae) is the main natural vector that spreads in Europe the golden flavescence diseases (Flavescence Dorée), one of the most destructive grape yellow diseases produced by phytoplasma. This paper reports the results of a 4-year survey on spreading and abundance of S. titanus in vineyards from Moldova region in Eastern Romania as well as specific symptoms for phytoplasma diseases. Fifty-one plantations were investigated during 2016-2018 and 2020. Visual observations were performed to evaluate the symptoms of yellows diseases and yellow double sticky traps to monitor the leafhopper. Results revealed that 84.3% of plantations showed symptoms characteristics to yellows diseases associated with phytoplasmas presence with an incidence between 0.5 and 29.5%. Chardonnay white cultivar was the most affected. The leafhopper S. titanus was recorded in all investigated vineyards with different abundance. Total abundance of the pest, from June to October, was between 10 and over 1600 specimens per trap per site.
Scaphoideus titanus, Romanian grapevine