Baseline sensitivity and control efficacy of propiconazole against Sclerotinia sclerotiorum

2018 ◽  
Vol 114 ◽  
pp. 208-214 ◽  
Author(s):  
Jun Zhang ◽  
Simin Hu ◽  
Qianru Xu ◽  
Hong You ◽  
Fuxing Zhu
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control

Baseline sensitivity and control efficacy of DMI fungicide epoxiconazole against Sclerotinia sclerotiorum

2014 ◽  
Vol 141 (2) ◽  
pp. 237-246 ◽  
Author(s):  
Jin-Li Li ◽  
Xiang-Yang Liu ◽  
Ya-Li Di ◽  
Hong-Jie Liang ◽  
Fu-Xing Zhu
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control

scholarly journals Pharmacological Characteristics and Control Efficacy of a Novel SDHI Fungicide Pydiflumetofen Against Sclerotinia sclerotiorum

Plant Disease ◽  
2019 ◽  
Vol 103 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Yabing Duan ◽  
Qian Xiu ◽  
Haoran Li ◽  
Tao Li ◽  
Jianxin Wang ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Sclerotinia Sclerotiorum ◽  
Field Trials ◽  
Cell Membrane Permeability ◽  
Sclerotinia Stem Rot ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
Pharmacological Mechanism ◽  
Excellent Control ◽  
And Control

Pydiflumetofen is a novel succinate dehydrogenase inhibitor fungicide. In the current research, we determined the sensitivity of 166 Sclerotinia sclerotiorum strains to pydiflumetofen using mycelial growth inhibition method. The results suggest that pydiflumetofen exhibited a strong inhibitory activity against S. sclerotiorum and the EC50 values ranged from 0.0058 to 0.0953 μg ml−1, with a mean EC50 value of 0.0250 μg ml−1. However, the baseline sensitivity was not normally distributed because of a high variation factor. After treatment with pydiflumetofen, cell membrane permeability increases, but exopolysaccharide and oxalic acid production decreases, which contributes to reduced virulence of S. sclerotiorum and leads to failure of disease infection. In addition, protective and curative activity was performed on detached oilseed rape leaves by artificial inoculation. Pydiflumetofen exhibited excellent protective and curative effects against S. sclerotiorum on oilseed rape, and the protective effect was better than the curative effect. Further, field trials were conducted to evaluate the potential of pydiflumetofen in controlling Sclerotinia stem rot (SSR) caused by S. sclerotiorum on oilseed rape. Compared with the currently used fungicides, pydiflumetofen not only exhibited excellent control efficacy against SSR, but also dramatically reduced the dosage of fungicides in the field. Thus, this study provides important references for revealing pharmacological mechanism of pydiflumetofen against S. sclerotiorum and managing SSR on oilseed rape caused by benzimidazole- and dicarboximide-resistant populations.

Baseline sensitivity and control efficacy of fluazinam against Sclerotinia sclerotiorum

2015 ◽  
Vol 142 (4) ◽  
pp. 691-699 ◽  
Author(s):  
Hong-Jie Liang ◽  
Ya-Li Di ◽  
Jin-Li Li ◽  
Fu-Xing Zhu
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control

Baseline sensitivity and control efficacy of epoxiconazole against Fusarium graminearum in Henan Province, China

2020 ◽  
Vol 157 (4) ◽  
pp. 825-833
Author(s):  
Shengming Liu ◽  
Liuyuan Fu ◽  
Jinpeng Chen ◽  
Shuan Wang ◽  
Jinliang Liu ◽  
...  
Keyword(s):  
Fusarium Graminearum ◽  
Henan Province ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control

scholarly journals Baseline Sensitivity and Control Efficacy of Pyraclostrobin Against Botryosphaeria dothidea Isolates in China

Plant Disease ◽  
2019 ◽  
Vol 103 (7) ◽  
pp. 1458-1463 ◽  
Author(s):  
Kun Fan ◽  
Jie Wang ◽  
Li Fu ◽  
Guo Fu Zhang ◽  
Hai Bin Wu ◽  
...  
Keyword(s):  
Control Measure ◽  
Mean Value ◽  
Cross Resistance ◽  
Botryosphaeria Dothidea ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
Quinone Outside Inhibitor ◽  
Ring Rot ◽  
Rot Disease ◽  
And Control

Botryosphaeria dothidea is an important fungal pathogen that causes apple ring rot, which can significantly reduce apple yield. Fungicide applications are the main control measure of apple ring rot worldwide. Pyraclostrobin is a quinone outside inhibitor (QoI) fungicide that has yet to be registered for control of B. dothidea in China. Baseline sensitivity of B. dothidea to pyraclostrobin (EC50 of mycelial growth inhibition) was assessed for 97 isolates collected in Shandong Province. The EC50 values ranged from 0.7010 to 7.1378 μg/ml with the mean value of 3.0870 μg/ml and displayed a unimodal frequency distribution. After cultured on fungicide-free PDA medium or on apples for multiple generations, the B. dothidea–resistant isolates (RST) remained resistant to pyraclostrobin, but exhibited similar virulence as the susceptible isolates (ST). Cross-resistance investigation revealed that pyraclostrobin was not cross-resistant to tebuconazole, flusilazole, carbendazim, and iprodione. Field evolution showed that pyraclostrobin at 200 and 250 g a.i./ha provided greater than 80% control efficacy against apple ring rot disease when applied as a therapeutic or preventive fungicide. The efficacy was similar to fungicides that have been registered for apple.

scholarly journals Baseline Sensitivity and Control Efficacy of Various Group of Fungicides against Sclerotinia sclerotiorum in Oilseed Rape Cultivation

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1758
Author(s):  
Nazanin Zamani-Noor
Keyword(s):  
Oilseed Rape ◽  
Sclerotinia Sclerotiorum ◽  
Fungicidal Activity ◽  
Management Strategies ◽  
Sclerotinia Stem Rot ◽  
Baseline Sensitivity ◽  
Cultural Management ◽  
Significant Yield ◽  
And Control

Sclerotinia stem rot (SSR), caused by Sclerotinia sclerotiorum, is a devastating disease of oilseed rape that may cause significant yield losses if not controlled by cultural management strategies and fungicide applications. Studies were conducted to evaluate the efficacy of different group of fungicides as well as a biopesticide, including azoxystrobin, boscalid, fludioxonil, prothioconazole, tebuconazole, azoxystrobin/tebuconazole, boscalid/pyraclostrobin, prothioconazole/fluopyram and Bacillus amyloliquefaciens, on baseline sensitivity of S. sclerotiorum isolates under in-vitro conditions as well as control of SSR in the field. Artificial inoculation and mist irrigation prompt to reproducible SSR infection in oilseed rape cultivation. All compounds significantly reduced 36.7% to 86.9% SSR severity and increased 55.2% to 98.7% yield, 1.5% to 7.0% thousand grain-weight, 1.5% to 5.9% oil and 0.1% to 1.3% protein content. Fludioxonil, boscalid/pyraclostrobin and fluopyram/prothioconazole achieved strongest fungicidal activity against SSR. The biopesticide provided 36% of disease control. Under in vitro conditions, B. amyloliquefaciens not only strongly inhibited mycelial growth but also the formation of sclerotia in all concentrations. Boscalid and fludioxonil exhibited the highest level of fungicidal activity against S. sclerotiorum, with mean EC50 values of 1.23 and 1.60 μg a.s. mL−1. The highest variability of EC50 values between isolates was observed towards prothioconazole and azoxystrobin.

Baseline sensitivity and control efficacy of fluazinam against Clarireedia homoeocarpa

2020 ◽  
Vol 137 ◽  
pp. 105290
Author(s):  
Jian Hu ◽  
Jiaxuan Wu ◽  
Murong Gu ◽  
Jiamei Geng ◽  
Cheng Guo ◽  
...  
Keyword(s):  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control

Baseline sensitivity and control efficacy of flutolanil in Rhizoctonia solani

2014 ◽  
Vol 43 (3) ◽  
pp. 313-320 ◽  
Author(s):  
Shandong Li ◽  
Yiping Hou ◽  
Di Peng ◽  
Lin Meng ◽  
Jianxin Wang ◽  
...  
Keyword(s):  
Rhizoctonia Solani ◽  
Baseline Sensitivity ◽  
Control Efficacy ◽  
And Control
Sign in / Sign up

Export Citation Format

Share Document