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<p>A&#xa0;field experiment was conducted to evaluate the effect of preharvest fruit bagging on fruit quality, pest and disease incidence in grape cv. ‘Crimson Seedless’. Different bagging materials were assessed for their influence on berry development and color. Among the treatments, white non-woven polypropylene bags were most effective, significantly improving fruit quality, reducing pest and disease incidence, and showing the highest total soluble solids (TSS; 20.91 °Brix), TSS:acid ratio (49.73), juice content (41.99%), and ascorbic acid content (4.48 mg/100 g<sup>−1</sup>). Further, a&#xa0;marked reduction in the incidence of powdery mildew was observed with nylon bags, showing a&#xa0;low incidence of powdery mildew (1.27%, 2.65%, 4.64%, and 7.91%) and thrips infestation (0.09, 0.15, 0.47, and 0.93) at 30, 45, 65, and 75&#xa0;days after fruit bagging, respectively. Collectively, the findings suggest that preharvest fruit bagging significantly influenced quality and biotic stress in grape cv. ‘Crimson Seedless,’ with white non-woven polypropylene bags improving TSS, color, and market quality, nylon bags reducing pest and disease incidence and paper-based bags impairing color development due to limited light penetration.</p>

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Influence of Preharvest Fruit Bagging on Quality, Disease and Pest Incidence in Grape (Vitis vinifera L.) cv. ‘Crimson Seedless’

  • 期刊论文

  • 发表日期：

    2026年2月3日

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  • Prutha Pramod Naik,
  • Basavaraj Padashetti,
  • Viresh Hiremath,
  • Mallikarjun Awati,
  • Anand Gurupadappa Nanjappanavar,
  • Noorulla Haveri

摘要

A field experiment was conducted to evaluate the effect of preharvest fruit bagging on fruit quality, pest and disease incidence in grape cv. ‘Crimson Seedless’. Different bagging materials were assessed for their influence on berry development and color. Among the treatments, white non-woven polypropylene bags were most effective, significantly improving fruit quality, reducing pest and disease incidence, and showing the highest total soluble solids (TSS; 20.91 °Brix), TSS:acid ratio (49.73), juice content (41.99%), and ascorbic acid content (4.48 mg/100 g−1). Further, a marked reduction in the incidence of powdery mildew was observed with nylon bags, showing a low incidence of powdery mildew (1.27%, 2.65%, 4.64%, and 7.91%) and thrips infestation (0.09, 0.15, 0.47, and 0.93) at 30, 45, 65, and 75 days after fruit bagging, respectively. Collectively, the findings suggest that preharvest fruit bagging significantly influenced quality and biotic stress in grape cv. ‘Crimson Seedless,’ with white non-woven polypropylene bags improving TSS, color, and market quality, nylon bags reducing pest and disease incidence and paper-based bags impairing color development due to limited light penetration.