In vivo antifungal activity of neem oil and aqueous extracts against leaf spot disease caused by <i>Cercospora abelmoschii</i> on okra

Septoria lycopersici responsible for Septoria leaf spot disease was observed on the leaves of tomato. Septoria lycopersici was isolated and completion of Koch’s postulates confirmed that the fungus was causal agent of the leaf spot disease. The fungus was cultured on potato dextrose agar medium. The fungus was very slow growing with 8-12 mm radial growth as recorded after 30 days of incubation. The fungus produced off white, irregular, hardened blackish mycelial growth oozing spore mass from pycnidia. Pycnidia were dark brown to black, globose to sub globose, ostiolated and thick walled. Pycnidiospores were filiform, straight with pointed to rounded ends.

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Antifungal activity of essential oil-encapsulated lipid nanoemulsions formulations against leaf spot disease on tomato caused by Alternaria alternata

Archives of Phytopathology and Plant Protection ◽

10.1080/03235408.2021.2015887 ◽

2021 ◽

pp. 1-23

Author(s):

Minh-Hiep Nguyen ◽

Thi-Ngoc-Mai Tran ◽

Ngoc-Bich-Dao Vu

Keyword(s):

Antifungal Activity ◽

Essential Oil ◽

Alternaria Alternata ◽

Leaf Spot ◽

Leaf Spot Disease ◽

Spot Disease

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Antifungal Activity of the Bark Extract of Michelia Alba Against Curvularia Verruculosa Fungal the Cause of Leaf Spot Disease on Rice

Biomedical & Pharmacology Journal ◽

10.13005/bpj/2266 ◽

2021 ◽

Vol 14 (3) ◽

pp. 1655-1659

Author(s):

I Gusti Agung Gede Bawa ◽

Ni Wayan Bogoriani

Keyword(s):

Antifungal Activity ◽

Leaf Spot ◽

Bark Extract ◽

Leaf Spot Disease ◽

Biomass Formation ◽

Antifungal Activities ◽

Spot Disease ◽

Curvularia Verruculosa ◽

Fungal Colony

The purpose of this study was observe the antifungal activity of the bark extract of Michelia alba against Curvularia verruculosa fungal of the cause of leaf spot disease in rice. The antifungal activities was carried out using the diffusion well, colony, biomass formation methods. The bark extract of Michelia alba has showed the antifungal activity against Curvularia verruculosa fungal with a minimum inhibition concentratiotn value to be 0.5%. The bark extract of Michelia alba with 2.0% concentration can strongly inhibit the growth of C. Verruculosa with inhibiting capabality is 33.17 mm. This extract at 0.6% concentration was able to completely inhibit the growth of fungal colony and at 2.0% concentration has been able to inhibit completely the biomass formation of C. Verruculosa fungal for a 14-day period of incubation.

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Antifungal Activity of Olive Pomace Extract and Its Effectiveness against Tomato Leaf Spot Disease = التضادية الفطرية لمستخلص تفل الزيتون و فاعليته في مكافحة مرض تبقع أوراق البندورة

مجلة الشمال للعلوم الأساسية و التطبيقية ◽

10.12816/0021377 ◽

2016 ◽

Vol 1 (1) ◽

pp. 59-68

Author(s):

Walid Naffaa

Keyword(s):

Antifungal Activity ◽

Leaf Spot ◽

Tomato Leaf ◽

Leaf Spot Disease ◽

Olive Pomace ◽

Spot Disease

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Antifungal activity of Thuja orientalis against transmittedseed-borne Alternaria zinniae, causing leaf spot disease in zinnia (Zinnia elegans L.)

Australasian Plant Pathology ◽

10.1007/s13313-019-00661-z ◽

2019 ◽

Vol 48 (6) ◽

pp. 583-594

Author(s):

Moustafa H. A. Moharam ◽

Yasin M. Y. Soliman

Keyword(s):

Antifungal Activity ◽

Leaf Spot ◽

Zinnia Elegans ◽

Leaf Spot Disease ◽

Spot Disease ◽

Thuja Orientalis

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TWO NEW SEVERE LEAF SPOT DISEASE ON FOREST TREES OF JALGAON (MAHARASTRA) INDIA

FLORA AND FAUNA ◽

10.33451/florafauna.v23i2pp288-290 ◽

2017 ◽

Vol 23 (2) ◽

Author(s):

S. A. FIRDOUSI

Keyword(s):

Leaf Spot ◽

Fungal Disease ◽

Leaf Spot Disease ◽

Forest Trees ◽

First Report ◽

Spot Disease ◽

Severe Leaf

During the survey of the forest fungal disease, of Jalgaon district, two severe leaf spot diseases on Lannae coromandelica and ( Ougenia dalbergioides (Papilionaceae) were observed in Jalgaon, forest during July to September 2016-17. The casual organism was identified as Stigmina lanneae and Phomopsis sp. respectively1-4,7. These are first report from Jalgaon and Maharashtra state.

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