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<p>The effect of 30% fewer fungicide applications and no fungicides on the incidence of pear scab and other diseases on scab-resistant pear cultivar Hoshiakari was assessed for 4 years. Scab incidence on Hoshiakari ranged from 0 to 10% in both treatments, similar to the incidence on scab-susceptible cultivar Kosui, after standard fungicide application. Hoshiakari had a significantly lower incidence of fruit core rot than Kosui but was more susceptible to powdery mildew. The results provide a basis for using scab-resistant cultivars as part of a sustainable management program for Japanese pears.</p>

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Evaluation of Japanese pear cultivar Hoshiakari with pear scab-resistance gene Rvn1 under reduced fungicide applications

  • 期刊论文

  • 发表日期：

    2025年11月3日

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  • Takushi Yoshida,
  • Nobuyoshi Ota,
  • Norio Takada,
  • Sogo Nishio,
  • Yukie Takeuchi,
  • Satoko Kanematsu

摘要

The effect of 30% fewer fungicide applications and no fungicides on the incidence of pear scab and other diseases on scab-resistant pear cultivar Hoshiakari was assessed for 4 years. Scab incidence on Hoshiakari ranged from 0 to 10% in both treatments, similar to the incidence on scab-susceptible cultivar Kosui, after standard fungicide application. Hoshiakari had a significantly lower incidence of fruit core rot than Kosui but was more susceptible to powdery mildew. The results provide a basis for using scab-resistant cultivars as part of a sustainable management program for Japanese pears.