Impacts of standard wine-making process on the survival of Lobesia botrana larvae (Lepidoptera: Tortricidae) in infested grape clusters.
To determine the risk winery waste poses for the spread of Lobesia botrana (Denis & Schiffermüller) (Lepidoptera: Tortricidae) in California, we evaluated the survival of larvae in artificially infested grape clusters (Vitis vinifera L.) processed for wine making. The trial consisted of five treatments: whole cluster pressing to 1 bar (100,000 Pa); whole cluster pressing to 2 bars (200,000 Pa); destemming and berry pressing to 1 bar; destemming and berry pressing to 2 bars; and control. Each treatment was replicated with the following five winegrape varieties: Chardonnay, Sauvignon Blanc, Gewürztraminer, Yellow Muscat, and Cabernet Sauvignon. All winery waste was inspected for larval survival. No live larvae were recovered from any of the treatments in all five varieties; therefore, the hypothesis that green winery waste contributes to the spread of L. botrana was rejected.
Cooperative Extension, Division of Agriculture and Natural Resources, University of California, 133 Aviation Blvd., Ste. 109, Santa Rosa, CA 95403-2894, USA. Igvarela@ucdavis.edu
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Varela
Department of Agriculture, Food & Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy.
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Lucchi
CRA, Agrobiology and Pedology Research Centre, via Lanciola, 12/A, 50125 Florence, Italy.
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Bagnoli
Centre for Technology Transfer, FEM-IASMA, 38010 San Michele all'Adige, TN, Italy.
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Nicolini
Centre for Technology Transfer, FEM-IASMA, 38010 San Michele all'Adige, TN, Italy.
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Ioriatti
D000383:Agriculture / Q000379:methods*; D000818:Animals; D005638:Fruit / Q000235:genetics / Q000254:growth & development; D007220:Industrial Waste / Q000032:analysis; D007558:Italy; D007814:Larva / Q000254:growth & development; D008136:Longevity; D009036:Moths / Q000254:growth & development*; D027843:Vitis / Q000235:genetics / Q000254:growth & development*; D014920:Wine
D007220:Industrial Waste