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18643

Non-chemical Control of Potato Early Blight Caused by Alternaria alternata

Article

Last updated: 03 Jan 2025

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Abstract

Early blight of potato caused by Alternaria alternata (Fries) Keissler is one of the factors that affect potato production. Using chemical control to reduce disease severity represent another risk for agriculture. Biological control, using microorganisms, as well as plant extract and compost are safe measures that give reliable control. Applying either measure of control reduced disease incidence to less than 2% during two successive seasons. Microbial spray of diseased potato reduced the disease to various extents. Trichoderma sp. was the most effective among all tested microorganisms, followed by Penicillium sp. On the other hand, alcoholic extract of three plants was more effective than their water extract. However, water extract showed highly significant reduction of disease incidence. Polygonum gave the highest reduction of disease incidence in both cases. Also water extract of compost greatly suppressed early blight when applied as spray to potato leaves. Duration of extraction may affect the ability of compost extract to suppress disease. All results were comparable to that of fungicides.

Keywords

Trichoderma, compost, plant extract, potato blight, non chemical control

Authors

First Name

Omar

Last Name

Abdul Wahid

MiddleName

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Affiliation

Department of Botany, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt

Email

oabdulwahid@yahoo.com

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Orcid

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First Name

Ismail

Last Name

Ismail

MiddleName

-

Affiliation

Botany Department, Faculty of Science, Cairo University, Giza, Egypt

Email

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City

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Orcid

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First Name

Ahmed

Last Name

Abo-Esha

MiddleName

-

Affiliation

Department of Microbiology, Soil, water and environmental Research Institute, Giza, Egypt

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Volume

1

Article Issue

2

Related Issue

3879

Issue Date

2018-11-01

Receive Date

2018-11-08

Publish Date

2018-11-01

Page Start

103

Page End

109

Print ISSN

1687-5052

Online ISSN

2090-2786

Link

https://cat.journals.ekb.eg/article_18643.html

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https://cat.journals.ekb.eg/service?article_code=18643

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14

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Original Article

Type Code

644

Publication Type

Journal

Publication Title

Catrina: The International Journal of Environmental Sciences

Publication Link

https://cat.journals.ekb.eg/

MainTitle

Non-chemical Control of Potato Early Blight Caused by Alternaria alternata

Details

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Article

Created At

22 Jan 2023