italianoenglishfrançaisdeutschespańolportuguęs
Language
  • » Scientific abstract
  • » Towards an improved understanding of the dynamics of vineyard-infesting Scaphoideus titanus leafhopper populations for better timing of management activities

Towards an improved understanding of the dynamics of vineyard-infesting Scaphoideus titanus leafhopper populations for better timing of management activities

Ivo E Rigamonti, Mauro Jermini, Daniele Fuog and Johann Baumgartner, 2011

BACKGROUND: This paper deals with supervised management of Scaphoideus titanus (Homoptera Cicadellidae) and describes a phenology model designed for improving the understanding of the within-vineyard dynamics and the timing of insect growth regulator (IGR) applications. RESULTS: The model consists of five components dealing with (a) the beginning of the post-dormancy development of overwintering eggs, (b) the egg hatching patterns, (c) the duration of first-instar nymphs, (d) the development and survival of subsequent instars and (e) the stochastic development of cohorts and their passage into the adult stage. Laboratory data permitted the parameterisation of temperature-dependent development and survival functions. Field data consisting mainly of beating tray catches allowed model parameterisation and validation. The model satisfactorily predicts the dynamics of age structures, the beginning as well as the pattern of egg hatching, the occurrence of the third instar and the emergence of adults. CONCLUSION: The phenology model is useful for timing IGR applications and for setting up monitoring activities in supervised S. titanus control. The model is an entry point into an adaptive management system, in that real-time weather and monitoring data are continuously integrated into the model for improving its explanatory and predictive capabilities. c 2011 Society of Chemical Industry Keywords: Scaphoideus titanus; egg hatching; nymphal development; adult emergence; phenology model; time-varying delay; insect growth regulator application; sampling.

(FANNY PREZMAN)
Published on: 12/08/2016
European logoThis project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement N°652601
copyrights Winetwork @2015
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK
- A +