CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority under 35 U.S.C. § 119(b) to Japanese Application No. 2019-073972, filed Apr. 9, 2019, the disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present invention relates to a method of protecting determinate soybean from damage by a plant pathogen.

BACKGROUND ART

Hitherto, a method of applying mefentrifluconazole has been known, as a method for controlling a plant pathogen on soybean (see Patent Document 1). Also, several types of soybean such as determinate soybean, indeterminate soybean and semi-determinate soybean are known (see Non-Patent Document 1). However, it is not known that determinate soybean, especially, can be safely protected from damage by a plant pathogen by applying mefentrifluconazole at certain application rate.

CITATION LIST

Patent Document

Patent Document 1: WO2013/007767

Non-Patent Document

Non-Patent Document 1: Crop Science 12 (1972), 235-239.

SUMMARY OF THE INVENTION

Problems to Be Solved by the Invention

An object of the present invention is to provide a method having superior safety for protecting determinate soybean from damage by a plant pathogen.

Means for Solving the Problems

The present inventor has found out that determinate soybean can be safely protected from damage by a plant pathogen by applying mefentrifluconazole at certain application rates to foliage of determinate soybean, seeds of determinate soybean, or a soil of cultivation area of determinate soybean.

The present invention includes the following aspects [1] and [2].

[1] A method of protecting determinate soybean from damage by a plant pathogen in a cultivation area of determinate soybean, the method including a step of applying mefentrifluconazole to foliage of determinate soybean, seeds of determinate soybean or a soil of the cultivation area of determinate soybean, wherein the application rate of mefentrifluconazole is 20 to 500 g per hectare of the cultivation area.

[2] The method according to [1], wherein mefentrifluconazole is applied to foliage of determinate soybean.

Effect of the Invention

Determinate soybean can be safely protected from damage by a plant pathogen according to the present invention.

