Isolation, Pathogenicity and Effect of Different Culture Media on Growth and Sporulation of Alternaria brassicae (berk.) Sacc. causing Alternaria Leaf Spot Disease in Cauliflower

Valvi, HT; Kadam, J. J.; Bangar, VR

doi:10.20546/ijcmas.2019.804.223

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Results of current experiment are in line with the work of (Kumar et al, 2013) who also used Score (fungicide) and reported that it showed significant results against A. solani. Results are also supported by the study of (Valvi et al, 2019) who used seven different fungicides against Alternaria and reported that mancozeb 75% WP significantly inhibited fungal growth followed by propiconazole. Results expressed that mixture of both treatments Tilt + Moringa showed minimum disease incidence (15%) followed by Tilt (18.33%) and Moringa (32.33%) as compared to control, while in field Tilt + Moringa showed minimum disease incidence (18%) followed by Tilt (20.83%) and Moringa (34.50%).…”

Section: Assessment Of Fungicide and Plant Extract Against A Alternat...supporting

confidence: 65%

Antifungal Efficacy of Plant Extracts and Chemicals against Alternaria Leaf Spot Disease of Spinach

Kachelo¹,

Rajput²,

Atiq³

et al. 2022

PJAR

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S pinach is one of the most important crops among all vegetables that belongs to family Chenopodiaceae. It is well known due to its taste and presence of essential elements like magnesium, iron, calcium, manganese, folic acid and Vitamins (A, B, C, and E) (Tewani et al., 2016) Spinach play a crucial role in food and medicine industries. It is used as curing agent against constipation, dyspepsia, anemia, neuritis, obesity, bronchitis and high blood pressure (Kumar et al., 2013;Bassey and Khan, 2015) Spinach crop is susceptible to various bacterial, fungal and viral diseases. Among all fungal diseases Alternaria leaf spot is a potential extortion to the Abstract | To check the efficacy of fungicides and plant extracts against leaf spot disease of spinach caused by Alternaria alternata five plant extracts and five fungicides were evaluated under in vitro and field conditions by using complete randomized design (CRD) and randomized complete block design (RCBD). In plant extracts moringa (Moringa oleifera) showed minimum fungal growth (20.790) mm followed by ginger (Zingiber officinale) (25.910), garlic (Allium sativum) (28.087), neem (Azadirachta indica) (29.010) and aloevera (Aloe barbadensis miller) (29.538) mm as compared to control plates, while in chemicals Tilt showed minimum fungal growth (7.982) followed by Score (10.865), Antracol (11.395), Radomil Gold (11.965) and Blue Copper (14.390) mm as compared to control. In the greenhouse, the most effective fungicide and plant extract were applied as tilt and moringa alone and their combination. The plants treated with tilt + moringa was found effective as compared to alone applications. tilt + moringa showed minimum disease incidence (15%) followed by Tilt (18.33%) and moringa (32.33%) as compared to control. While under the field conditions same combination of Tilt + moringa expressed minimum disease incidence (18%) followed by tilt (20.83%) and moringa (34.50%). By these findings it is recommended to farmers that, Alternaria leaf spot disease of spinach can be managed by using tilt fungicide and moringa extract.

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Section: Assessment Of Fungicide and Plant Extract Against A Alternat...supporting

confidence: 65%

Antifungal Efficacy of Plant Extracts and Chemicals against Alternaria Leaf Spot Disease of Spinach

Kachelo¹,

Rajput²,

Atiq³

et al. 2022

PJAR

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“…It has been reported that A. alternate attacks on 380 host species of plants and about 20% of agricultural spoilage is caused by Alternaria spp., with severe losses of about 80% of the crop (Bashir et al, 2014). Alternaria leaf spot is difficult to control because the fungus penetrates in infected seed, plant debris in soil and collateral hosts such as other cruciferous crops in the vicinity of the main crop or weeds (Valvi et al, 2019). One of the most effective and old method for disease control is the use of fungicides.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of different fungicides for the control of Alternaria leaf spot of roses caused by “Alternaria alternata”

Khalid

2022

P. Bulletin

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Rose (Rosa indica L) is important plant uses worldwide in medical, cosmetic, happy events, celebrations and food tonic supplement. Fungal diseases (powedery mildew, anthracnose, rust, root rots, Alternaria black spot, cercospora leaf spot and grey mold) are well known for threat to cultivation of rose plant for commercial scale. Among them Alternaria black spot disease is the most dangerous one. Present study was done in the field area of College of Agriculture, Bhadur sub.campus Layyah in 2019 using RCBD 3 factorial design. The study was carried out to evaluate and to check efficacy of five fungicides (Ridomil Gold, Companion, Acrobat MZ, Dodine and Myclobutanil) to control the disease at different concentration and days. Results indicate that disease is effectively controlled by Ridomil Gold (17.68%) followed by Acrobat MZ (24.35%), Myclobutanil (34.69%), Companion (49.72%) while Dodine showed least efficacy (44.84%) over control (73.54 %). Ridomil gold can be used to control Alternaria black spot of rose.

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Alternaria leaf spot of broccoli caused by Alternaria alternata in Bangladesh

Nira¹,

Hossain²,

Mahmud³

et al. 2021

Plant Prot. Sci.

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This study aimed to isolate and characterise the pathogen associated with Alternaria leaf spot on broccoli and to evaluate the inhibitory effects of fungicides against it. We isolated and identified the fungal pathogen as Alternaria sp. using morphological and cultural methods. Based on the aligned sequences of the internal transcribed spacer (ITS) and molecular phylogenetic analysis by the neighbour-joining method, the isolates (Ab1 and Ab2) were confirmed as Alternaria alternata. The conidia of the isolates were dark brown, cylindrical, obclavate to muriform. The conidiophores were olivaceous brown, septate, and branched. The conidial morphology of the isolates ranged from 52.4–92.4 × 10–20 μm with 2–6 transverse and 0–3 longitudinal septa. Both isolates yielded positive results in the pathogenicity test on broccoli leaves by developing brown and circular spots with concentric rings on the leaves surrounded by yellow halos. The culture studies revealed that the maximum growth of the pathogen was obtained at 30 °C and pH 6.0. Tilt 250 WC showed the highest potential in suppressing the mycelial growth of the A. alternata in vitro at a concentration as low as 50 µg/mL. The results from this study contributed to the positive identification of the pathogen and characterised A. alternata as a destructive pathogen of broccoli which may be successfully controlled by the fungicide Tilt.

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Isolation, Pathogenicity and Effect of Different Culture Media on Growth and Sporulation of Alternaria brassicae (berk.) Sacc. causing Alternaria Leaf Spot Disease in Cauliflower

Abstract: caulis' meaning cabbage and 'floris', meaning flower.Cauliflower is one of the most important winter vegetables of India. India produces 8573.3 MT of cauliflower in the year 2013-14 from 433.9 ha. area with an average productivity of about 19.8mt/ha. In

Cited by 5 publications

References 7 publications

Antifungal Efficacy of Plant Extracts and Chemicals against Alternaria Leaf Spot Disease of Spinach

Antifungal Efficacy of Plant Extracts and Chemicals against Alternaria Leaf Spot Disease of Spinach

Evaluation of different fungicides for the control of Alternaria leaf spot of roses caused by “Alternaria alternata”

Alternaria leaf spot of broccoli caused by Alternaria alternata in Bangladesh

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