Fungicidal spectrum and biological properties of a new fungicide, pyriofenone.

IF 1.5 4区 农林科学 Q2 ENTOMOLOGY Journal of Pesticide Science Pub Date : 2023-05-20 DOI:10.1584/jpestics.D22-068
Munekazu Ogawa, Akihiro Nishimura, Yuzuka Abe, Yohei Fukumori, Kazumi Suzuki, Shigeru Mitani
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Abstract

Pyriofenone is a new fungicide developed by Ishihara Sangyo Kaisha, Ltd. To determine the fungicidal spectrum of pyriofenone, in vivo pot tests and in vitro mycelial growth-inhibition tests were conducted. Pyriofenone showed excellent activity against wheat and cucumber powdery mildew and moderate efficacy against rice blast in the pot tests. In the mycelial growth-inhibition tests, most fungi were not affected by pyriofenone except for Botrytis cinerea, Helminthosporium sacchari, Pseudocercosporella herpotrichoides, Pyricularia oryzae, Rosellinia necatrix, and Verticillium dahliae. The fungicidal properties of pyriofenone on powdery mildew in cucumber and wheat were evaluated precisely. Pyriofenone exhibited excellent preventive and residual activities. It had high rainfastness in the cucumber leaves against powdery mildew. Pyriofenone also showed inhibitory activity on lesion development upon application until 2 days after inoculation, and the lesion expansion and sporulation of the cucumber powdery mildew fungus were effectively controlled. Furthermore, pyriofenone showed translaminar and vapor activities.

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新型杀菌剂吡虫酮的杀菌谱及生物学特性。
Pyriofenone是石原Sangyo Kaisha株式会社开发的一种新型杀菌剂。通过体内盆栽试验和体外菌丝生长抑制试验确定吡虫酮的抑菌谱。在盆栽试验中,吡虫酮对小麦和黄瓜白粉病表现出优异的防治效果,对稻瘟病表现出中等的防治效果。在菌丝体生长抑制试验中,除灰葡萄孢、糖化蠕虫孢、蛇尾假孢子菌、稻瘟病菌、桃红玫瑰菌和大丽花黄萎病菌外,大多数真菌不受嘧菌酮的影响。对吡虫酮对黄瓜和小麦白粉病的杀灭性能进行了精确评价。吡虫酮具有良好的预防和残留活性。对黄瓜叶片抗白粉病有较高的耐雨性。在接种后2 d内,吡虫酮对黄瓜白粉病菌的病变发展也有抑制作用,有效地控制了黄瓜白粉病菌的病变扩大和产孢。此外,吡喃酮具有跨层流和水蒸气活性。
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来源期刊
Journal of Pesticide Science
Journal of Pesticide Science 农林科学-昆虫学
CiteScore
4.30
自引率
4.20%
发文量
28
审稿时长
18-36 weeks
期刊介绍: The Journal of Pesticide Science publishes the results of original research regarding the chemistry and biochemistry of pesticides including bio-based materials. It also covers their metabolism, toxicology, environmental fate and formulation.
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