Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (2001) 125, 515-518

P.G. Milonas, M. Savopoulou-Soultani and D.G. Stavridis (2001)
Day-degree models for predicting the generation time and flight activity of local populations of Lobesia botrana (Den. and Schiff.) (Lep., Tortricidae) in Greece
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 125 (9-10), 515-518
Abstract: The generation time of Lobesia botrana (Den. and Schiff.) was estimated as the number of day-degrees required between the start of a flight and the start of the following flight in two regions in northern Greece. The day-degrees required for the first generation (x=339.3, Naoussa; x=275.6, Thessaloniki) were significantly shorter than for the second (x=751.5, Naoussa; x=833.8, Thessaloniki) and the third generations (x=899.5, Naoussa; x=1197.0, Thessaloniki). Nonlinear models were developed using trap catches of male L. botrana during 1987-1989 for predicting its flight activity. A lower threshold temperature of 6.45°C was used in calculating daily day-degrees from 1 March. The models predicted with sufficient accuracy the accumulated male moth catch and they accounted for the 60-78% and 86-91% of year-to-year variation in male flight activity in Thessaloniki and Naoussa, respectively.
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Link to article at publishers website
Database assignments for author(s): Panagiotis G. Milonas, Mathilde Savopoulou-Soultani

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lobesia botrana		Greece