Fungicide Effects in Vitro and in Field Trials on Fusarium Head Blight of Wheat

Research in Plant Disease 2012;18(3):194-200.
Published online September 30, 2012.

국내 발생 밀 붉은곰팡이병에 대한 약제의 배지상의 효과 검정과 포장 방제 약제 선발

박정미 ( Jung Mi Park ) , 신상현 ( Sang Hyun Shin ) , 강천식 ( Chun Sik Kang ) , 김경훈 ( Kyung Hoon Kim ) , 조광민 ( Kwang Min Cho ) , 최재성 ( Jae Seong Choi ) , 김형무 ( Hyung Moo Kim ) , 박종철 ( Jong Chul Park )

Fungicide Effects in Vitro and in Field Trials on Fusarium Head Blight of Wheat

Jung-Mi Park, Sang-Hyun Shin1, Chun-Sik Kang1, Kyung-Hoon Kim1, Kwang-Min Cho1, Jae-Seong Choi1, Hyung-Moo Kim and Jong-Chul Park1*

Department of Agricultural Biology, Chonbuk National University, JeonJu 561-756, Korea
¹Department of Rice and Winter Cereal Crop, National Institute of Crop Science, Rural Development Administration, Iksan 570-080, Korea

Received: August 06, 2012 Revised: September 21, 2012 Accepted: September 24, 2012

Abstract

The objective of this research was to select effective fungicides for the control of Fusarium head bight (FHB) of wheat. We tested fourteen commercial fungicides against FHB in the laboratory and under field. Fludioxonil FS, Fludioxonil SC, and Benomyl + Thiram WP highly inhibited the mycelial growth of Fusarium graminearum on the medium while Oxine-copper WP, Thiophanate-methyl WP, and Copper hydroxide WP were not effective against FHB. To verify the disease control in field condition, we selected four fungicides such as Fludioxonil SC, Captan WP, Difenoconazole + propiconazole EC, and Metconazole SC. Their control efficacy on FHB disease severity of wheat was examined after the fungicide treatment twice (30th April and 10th May, 2012) in the two field locations (Iksan and Gimje). With no treatment, FHB severity was 45% and 33.7% in Gimje and Iksan, respectively. FHB disease incidence after fungicide treatment was between 0.3% and 2.2% in Gimje, showing over 95% FHB disease control. FHB disease incidence of fungicide-treated sector in Iksan showed slightly higher than Gimje but the control value of fungicides exhibited 87?90%. No side effect of the chemicals was observed in fungicide treatment. These results showed that four fungicides were effective in the FHB disease control in wheat.

Key Words: Chemical control, Fusarium head blight, Wheat