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245632

Efficacy of certain chemical Fungicides and Biofungicides on early blight disease in tomato under field conditions

Article

Last updated: 22 Jan 2023

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Tags

Plant Protection

Abstract

Field experiments were conducted in a private farm in Ashmon district, Menoufia Government to evaluate the efficacy of four chemical fungicides and two biofungicides against tomato early blight disease under field conditions during the two consecutive seasons (2018-2019 and 2019-2020). The tested fungicides were, Amistar 25% SC (azoxystrobin), Anadol 80% WP (mancozeb), Ridomil Gold MZ 68% WP (metalaxyl M – mancozeb) and Score 25% SC (difenoconazole) at two rates each (25 and 50 cm3, 125 and 250 gm, 100 and 200 gm and 25 and 50 cm3, 100L-1, respectively) and the two biofungicides were (Bio Arc 6% WP (Bacillus megaterium), and Plant guard (30 million cell ml-1) (Trichoderma harzianum) at two rates each (125 and 250 gm, 100L-1, respectively). Each chemical fungicide and biofungicide was applied at recommended and half recommended rates as foliar spraying 3 times season-1. The results clearly indicated that, chemical fungicides were significantly more effective than the biofungicides, and all the tested compounds particularly Score, 25%, SC Amistar 25% SC and Ridomil Gold MZ 68% WP significantly reduced incidence and severity of early blight disease in tomato and subsequently increase a tomato fruit yields in comparison with the untreated control. Also, Plant guard was more effective than Bio Arc. Regardless the examined fungicide, and as expected, the higher rate of application higher reduction of the tomato early blight disease, and subsequently higher fruit yield.   

DOI

10.21608/ajar.2021.245632

Keywords

Tomato, Early blight bisease, fungicides, biofungicides

Authors

First Name

R. M.

Last Name

El-Kholy

MiddleName

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Affiliation

Department of plant protection, Faculty of Agriculture, Cairo, Al-Azher University, Egypt.

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City

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Orcid

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First Name

A. M.

Last Name

El-Samadesy

MiddleName

-

Affiliation

Department of plant protection, Faculty of Agriculture, Cairo, Al-Azher University, Egypt.

Email

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City

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Orcid

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First Name

A. A.

Last Name

Helalia

MiddleName

-

Affiliation

Department of plant protection, Faculty of Agriculture, Cairo, Al-Azher University, Egypt.

Email

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City

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Orcid

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First Name

E. M.

Last Name

El-Ballat

MiddleName

-

Affiliation

Department of plant protection, Faculty of Agriculture, Cairo, Al-Azher University, Egypt.

Email

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City

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Orcid

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Volume

46

Article Issue

2

Related Issue

31236

Issue Date

2021-12-01

Receive Date

2021-06-22

Publish Date

2021-12-01

Page Start

145

Page End

153

Print ISSN

1110-1563

Online ISSN

2786-0051

Link

https://ajar.journals.ekb.eg/article_245632.html

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https://ajar.journals.ekb.eg/service?article_code=245632

Order

13

Type

Original Article

Type Code

929

Publication Type

Journal

Publication Title

Al-Azhar Journal of Agricultural Research

Publication Link

https://ajar.journals.ekb.eg/

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Article

Created At

22 Jan 2023