engleski

Intensity of scale insects infestation in relation to grapevine variety and soil type in Croatia

During a three year monitoring (2005 – 2007) of the scale insects on grapes, mass outbreaks of Parthenolecanium corni (Bouché), Parthenolecanium persicae (Fabricius) and Neopulvinaria innumerabilis (Rathvon) were noticed. Neopulvinaria innumerabilis is a new insect species in Croatia. Mass outbreaks of P. corni were recorded in many vineyards in Panonian region of Croatia, while mass outbreaks of P. persicae and N. innumerabilis were recorded in Northern Adriatic region Istria. Mass outbreak of N. innumerabilis was recorded in Central Adriatic region as well. Different varieties of grapevine weren’ t equally subservient to different species of scales of family Coccidae. Various intensity of scale insects infestation were recorded on grapevines on the same soil type.

Croatia; Scale insects; Distribution; Variety of grapevine; Soil type

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