Agricultural and Forest Entomology (2018) 20, 255-271

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Andrew Paul Gutierrez, Luigi Ponti, Gianni Gilioli and Johann Baumgärtner (2018)
Climate warming effects on grape and grapevine moth (Lobesia botrana) in the Palearctic region
Agricultural and Forest Entomology 20 (2), 255-271
Abstract:
- The grapevine moth Lobesia botrana (Den. and Schiff.) (Lepidoptera: Tortricidae) is the principal native pest of grape in the Palearctic region. In the present study, we assessed prospectively the relative abundance of the moth in Europe and the Mediterranean Basin using linked physiologically-based demographic models for grape and L. botrana. The model includes the effects of temperature, day-length and fruit stage on moth development rates, survival and fecundity.
- Daily weather data for 1980–2010 were used to simulate the dynamics of grapevine and L. botrana in 4506 lattice cells across the region. Average grape yield and pupae per vine were used as metrics of favourability. The results were mapped using the grass Geographic Information System.
- The model predicts a wide distribution for L. botrana with highest populations in warmer regions in a wide band along latitude 40°N.
- The effects of climate warming on grapevine and L. botrana were explored using regional climate model projections based on the A1B scenario of an average +1.8 °C warming during the period 2040–2050 compared with the base period (1960–1970). Under climate change, grape yields increase northwards and with a higher elevation but decrease in hotter areas. Similarly, L. botrana levels increase in northern areas but decrease in the hot areas where summer temperatures approach its upper thermal limit.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Database assignments for author(s): Andrew Paul Gutierrez

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


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.
Lobesia botrana Grapevine (Vitis) Italy
Lobesia botrana Grapevine (Vitis) Spain (continental)