TY - JOUR
T1 - Response to Fungicides of Colletotrichum spp. Isolated from Red Peppers in Sunchang, Korea
AU - Ju, Hyeon Yeong
AU - Son, Mi Ra
AU - Kim, Jin Won
N1 - Publisher Copyright:
© 2021 The authors. All right reserved.
PY - 2021/12
Y1 - 2021/12
N2 - In August 2020, 377 anthracnose strains were isolated from anthracnose-infected peppers collected from 25 farms in Sunchang-gun, Jeollabuk-do. Inhibition rate of mycelial growth of 11 pepper anthracnose fungicides registered in Korea was investigated for 62 strains selected by region and the degree of susceptibility to each fungicide was investigated. As a result of the fungicide susceptibility test of anthracnose to the fungicide, no resistant strains were observed in fluazinam, prochloraz manganese, and benomyl, but resistant strains appeared in at least three areas for other fungicides, and all strains in all regions were resistant to dithianon. Through this, it was confirmed that the fungicide resistance was expressed in the strain group due to the continuous treatment of the fungicide in some areas. By region, resistant strains to seven pesticides appeared in Sunchang-eup and Paldeok-myeon, and resistant strains to six pesticides appeared in Geumgwa-myeon, Bokheung-myeon, Ssangchi-myeon, Yudeung-myeon, and Pungsan-myeon. There was no significant correlation between fungicide registration time and emergence of resistant strains.
AB - In August 2020, 377 anthracnose strains were isolated from anthracnose-infected peppers collected from 25 farms in Sunchang-gun, Jeollabuk-do. Inhibition rate of mycelial growth of 11 pepper anthracnose fungicides registered in Korea was investigated for 62 strains selected by region and the degree of susceptibility to each fungicide was investigated. As a result of the fungicide susceptibility test of anthracnose to the fungicide, no resistant strains were observed in fluazinam, prochloraz manganese, and benomyl, but resistant strains appeared in at least three areas for other fungicides, and all strains in all regions were resistant to dithianon. Through this, it was confirmed that the fungicide resistance was expressed in the strain group due to the continuous treatment of the fungicide in some areas. By region, resistant strains to seven pesticides appeared in Sunchang-eup and Paldeok-myeon, and resistant strains to six pesticides appeared in Geumgwa-myeon, Bokheung-myeon, Ssangchi-myeon, Yudeung-myeon, and Pungsan-myeon. There was no significant correlation between fungicide registration time and emergence of resistant strains.
KW - Anthracnose
KW - Colletotrichum spp
KW - Fungicide sensitivity
KW - Red pepper
KW - Resistance
UR - http://www.scopus.com/inward/record.url?scp=85123316837&partnerID=8YFLogxK
U2 - 10.5423/RPD.2021.27.4.164
DO - 10.5423/RPD.2021.27.4.164
M3 - Article
AN - SCOPUS:85123316837
SN - 1598-2262
VL - 27
SP - 164
EP - 171
JO - Research in Plant Disease
JF - Research in Plant Disease
IS - 4
ER -