Efficacy of Cyazofamid and Pyraclostrobin+ Dimethomorph Fungicides in the Control of Cucumber Downy Mildew

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FANI SEYED REZA; AZIMI HOSSEIN; BEIKI FARID

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Applied Research in Plant Protection Year:2020 | Volume:9 | Issue:2 Page(s): 89-97

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Title

Efficacy of Cyazofamid and Pyraclostrobin+ Dimethomorph Fungicides in the Control of Cucumber Downy Mildew

Author(s)

FANI SEYED REZA | AZIMI HOSSEIN | BEIKI FARID | Issue Writer Certificate

Keywords

CucurbitsQ1

Foliar diseaseQ1

Chemical controlQ1

Pesticide efficacyQ1

Abstract

Downy mildew is the most important disease of cucumber. Efficacy of the fungicides Cyazofamid (Regnant ® SC 20%) and Pyraclostrobin + Dimethomorph (Pyradim ® DF 18. 7%), in controlling cucumber downy mildew disease were assessed in Tehran and Mazandaran provinces in a Randomized Complete Block Design (RCBD) with 10 treatments and four replications. Treatments included the Regnant fungicide at three concentrations of 0. 5, 0. 6 and 0. 75 ml/L and the Pyradim fungicide at three concentrationse of 0. 25, 0. 3 and 0. 35 ml/L as target fungicides and Propamocarb hydrochloride + Fluopicolide (Infinito ® SC 68. 75%) 2ml/L and Cyazofamid (Ranman ® SC 400) 0. 5 ml/L as standard fungicides including two controls as with and without water spray. The combined Analyses of Variance (ANOVA) revealed a significant diference between treatments at level of 1%, but no significant difference was detected between locations and treatment × location intractions. Means comparison based on Duncan Multiple Range Test revealed that the Ranman ® and Infinito ® fungicides together with the Regnant at the dose of 0. 75 ml/L decreased disease severity by 79. 1, 72. 8 and 71. 9% compared to water spray treatment (control), respectively. On the contrary, the fungicides Regnant at the dose of 0. 5 ml/L and Pyradim at the concentrations of 0. 25 and 0. 3 ml/L decreased disease severity by 46. 7, 46. 7 and 43. 2% showing the lowest efficacy compared to water spray treatment (control), respectively. . Based on the results, the concentrations 0. 6 and 0. 75 ml/L of the Regnant and the dose of 0. 35 ml/L of the Pyradim fungicides are recommended as the proper concentrations for control of the disease with 7-10 days intervals.

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APA: Copy

FANI, SEYED REZA, AZIMI, HOSSEIN, & BEIKI, FARID. (2020). Efficacy of Cyazofamid and Pyraclostrobin+ Dimethomorph Fungicides in the Control of Cucumber Downy Mildew. JOURNAL OF APPLIED RESEARCHES IN PLANT PROTECTION, 9(2 ), 89-97. SID. https://sid.ir/paper/390933/en

Vancouver: Copy

FANI SEYED REZA, AZIMI HOSSEIN, BEIKI FARID. Efficacy of Cyazofamid and Pyraclostrobin+ Dimethomorph Fungicides in the Control of Cucumber Downy Mildew. JOURNAL OF APPLIED RESEARCHES IN PLANT PROTECTION[Internet]. 2020;9(2 ):89-97. Available from: https://sid.ir/paper/390933/en

IEEE: Copy

SEYED REZA FANI, HOSSEIN AZIMI, and FARID BEIKI, “Efficacy of Cyazofamid and Pyraclostrobin+ Dimethomorph Fungicides in the Control of Cucumber Downy Mildew,” JOURNAL OF APPLIED RESEARCHES IN PLANT PROTECTION, vol. 9, no. 2 , pp. 89–97, 2020, [Online]. Available: https://sid.ir/paper/390933/en

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