Mitsui Chemicals Agro, Inc.

Masanori Yanagi

Hideki Umetani

Ryohei Naito

Takeshi Fukumoto

Satoshi Yutani

Akihiro Nishida

Tomomi Shirakawa

Toshiaki Ohara

Hideaki Ikishima

Kazuki Kitajima

Akane Sakurada

Toshiyuki Kouno

Shun Okaya

Hikaru Koishihara

Koji Masutomi

Koya Saito

Pyridine compounds of Formula (1) are provided: wherein R1, R2, X, Y and Het are defined. The pyridine compounds can be used to treat or prevent plant diseases.

Pyridone compounds and agricultural and horticultural fungicides containing the same as active ingredients

An object of the invention is to provide compounds of formula (1) or salts thereof which are effective as agricultural and horticultural fungicides. In the formula, R1 represents, for example, a hydroxy group or a cyano group, R2, R3 and R4 are independent of one another and each represent, for example, a hydrogen atom or a halogen atom, R5 represents, for example, a hydrogen atom or a halogen atom, X represents an oxygen atom or a sulfur atom, Y represents, for example, a phenyl group or a pyridyl group, and the bond including the broken line represents a double bond or a single bond.

A pyridone compound represented by Formula (1): wherein R1, R2, X, Y and Z are defined. The pyridone compound can control plant diseases.

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Mobara, Japan

Masanori Yanagi