کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8878144 | 1624278 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Field efficacy and baseline sensitivity of Septoria steviae to fungicides used for managing Septoria leaf spot of stevia
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
Stevia (Stevia rebaudiana) is an herbaceous perennial emerging as a new crop in the southeastern US. Septoria leaf spot caused by Septoria steviae is present across all production areas in North Carolina, causing leaf lesions that expand and result in total defoliation when left unmanaged. Fungicide efficacy trials for management of Septoria leaf spot were conducted over 2 â¯yearsâ¯at two field sites. Seven fungicides, single or combination products, reduced disease severity and increased yield compared to non-fungicide treated controls. Azoxystrobin, chlorothalonil, fluopyram, fluxapyroxad, pyraclostrobin, and tebuconazole were screened using an in vitro assay to establish sensitivity profiles for 10 isolates of S. steviae that had received 0 or 1 year of fungicide exposure. All S. steviae isolates were sensitive to all fungicides evaluated. Successful management of Septoria leaf spot is critical for long term establishment of stevia as a crop in the southeast US.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Crop Protection - Volume 109, July 2018, Pages 95-101
Journal: Crop Protection - Volume 109, July 2018, Pages 95-101
نویسندگان
A.M. Koehler, H.D. Shew,