Chemical control system for strawberry anthracnose during the nursery period

Takeyama, Keiko; Ishii, Naoki; Uchida, Yuta; Matsusaki, Masashi

doi:10.4165/kapps.64.105

Cited by 2 publications

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“…Rotational application of multiple fungicides, including propineb, copper oxychloride, mancozeb, thiophanate-methyl, and QOI, is employed as a control strategy. However, reduced control e cacy against strawberry anthracnose has been observed for thiophanate-methyl ( Fludioxonil has a high level of e cacy that can be retained even after rainfall (Takeyama et al 2022) against strawberry anthracnose (Adachi and Watanabe 2014). Owing to its ability to control rain splash dispersal, udioxonil is widely used as the main fungicide in rotational programs in Saga Prefecture.…”

Section: Introductionmentioning

confidence: 99%

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

Furuta,

Ide,

Tashiro

et al. 2024

J Gen Plant Pathol

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The species composition of the strawberry anthracnose pathogen population in Saga Prefecture was investigated through phylogenetic analysis of the nucleotide sequences of the intergenic regions of the apn2 and MAT1-2-1genes. Here, 77 out of the 80 Colletotricum isolates used were classi ed as C. fructicola, and the remaining three were classi ed as C. siamense. The 77 C. fructicola isolates were tested for sensitivityto udioxonil, which is widely used as the main fungicide in rotational programs in Saga Prefecture. High levels of resistance to udioxonil were observed in 14 C. fructicola isolates tested for sensitivity to mycelial growth in udioxonil-containing media. Furthermore, two inoculation assays using strawberry seedlings treated with udioxonil were performed on ve of the 14 isolates that showed high levels of resistance. The effectiveness of udioxonil was signi cantly low in these isolates. To our knowledge, this is the rst study to report udioxonil resistance in a C. fructicola population.

show abstract

Section: Introductionmentioning

confidence: 99%

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

Furuta,

Ide,

Tashiro

et al. 2024

J Gen Plant Pathol

View full text Add to dashboard Cite

show abstract

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

Furuta,

Ide,

Tashiro

et al. 2024

Preprint

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The species composition of the strawberry anthracnose pathogen population in Saga Prefecture was investigated through phylogenetic analysis of the nucleotide sequences of the intergenic regions of the apn2 and MAT1-2-1genes. Here, 77 out of the 80 Colletotricum isolates used were classified as C. fructicola, and the remaining three were classified as C. siamense. The 77 C. fructicola isolates were tested for sensitivityto fludioxonil, which is widely used as the main fungicide in rotational programs in Saga Prefecture. High levels of resistance to fludioxonil were observed in 14 C. fructicola isolates tested for sensitivity to mycelial growth in fludioxonil-containing media. Furthermore, two inoculation assays using strawberry seedlings treated with fludioxonil were performed on five of the 14 isolates that showed high levels of resistance. The effectiveness of fludioxonil was significantly low in these isolates. To our knowledge, this is the first study to report fludioxonil resistance in a C. fructicola population.

show abstract

Chemical control system for strawberry anthracnose during the nursery period

Cited by 2 publications

References 0 publications

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

First report of fludioxonil resistance isolate of Colletotrichum fructicola emerging on strawberry in Japan

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