Karya
Judul/Title Hot Water Spray Over Strawberry Plants Effectively Controls the Occurrence of Strawberry Powdery Mildew in Everbearing Strawberry Production
Penulis/Author Dinar Mindrati Fardhani (1); Yuuki OHTA (2); Nur Akbar Arofatullah, S.P., M.Biotech., Ph.D. (3); Agung Dian Kharisma (4); Junjira Satitmunnaithum (5); Sayuri Tanabata (6); Isao Ogiwara (7); Prof. Ani Widiastuti, S.P., M.P., Ph.D. (8); Tatsuo Sato (9)
Tanggal/Date 2021
Kata Kunci/Keyword
Abstrak/Abstract 　Extensive use of sterol demethylation inhibitor (DMI) fungicides against strawberry powdery mildew has resulted in DMI-resistant genotype emergence. In this study, we examined the preventive effect of hot water spraying (HWS) on the occurrence of powdery mildew in everbearing strawberry, predominantly infected by DMI-resistant powdery mildew fungi from 2016 to 2018. Hot water of 54 ± 1°C was sprayed on Natsuakari for 20 s to achieve the target leaf temperature of 50°C. Disease occurrence under the chemical fungicide (F) + HWS treatment was less severe than that under the F treatment until the end of the cultivation period in February 2018. However, the preventive effect of HWS was not observed in already infected leaves. The incidence of DMI-resistant genotype was 0% at the start, and it increased to 62% and 100% in the infected fruits and leaves (including F+HWS) in September and November 2016 until the end of cultivation, respectively. On the contrary, disease severity increased between August 2017 and February 2018 under the F treatment, whereas only a slight infection was detected under the F+HWS treatment. Thus, HWS could induce resistance in strawberry against powdery mildew fungi, including DMI-resistant fungi, and effectively control the occurrence of powdery mildew in long-term everbearing strawberry cultivation.
Rumpun Ilmu Ilmu Hama dan Penyakit Tanaman
Bahasa Asli/Original Language English
Level Internasional
Status
Dokumen Karya
No Judul Tipe Dokumen Aksi
12021 Dinar HWT.pdfBukti Published
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