Environmental Challenges on Leaf Spot and Blight of  Sunflower (Helianthus annuus L.)

Jena, Ranjan Kumar; Swain, N. C.; Behera, S.; Jena, Nitish Kumar; Rout, M. K.; Pratap, D.; Mohapatra, A. K.; Nayak, Bitish Kumar

doi:10.20546/ijcmas.2020.907.325

Cited by 2 publications

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“…In order to prepare the fungicidal spray solution, one liter of distilled water was filled in a bottle, 0.2% of mancozeb was added, and the mixture was thoroughly mixed. The disease incidence was calculated using the following formula given by (Jena et al, 2020) [2] .…”

Section: Methodsmentioning

confidence: 99%

Evaluate the effect of essential oils on disease incidence of Alternaria blight of sunflower Alternaria helianthi

Tripathi,

Lal,

Sinha

2024

Int. J. Res. Agron.

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During the kharif season of 2022, the trial on sunflower crop to control of Alternaria blight at Department (Department of Plant Pathology), SHUATS, Prayagraj. The oils used were Mentha oil (0.7%), Fennel oil (0.7%), Cumin oil (0.7%), Lemongrass oil (0.7%), Eucalyptus oil (0.7%), Trichoderma viride (10 g), and treated check Mancozeb (0.2%). Out of these treatments, Mentha oil (0.7%) was found utmost functional and had a lowest level of disease incidence (27.3%).

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Section: Methodsmentioning

confidence: 99%

Evaluate the effect of essential oils on disease incidence of Alternaria blight of sunflower Alternaria helianthi

Tripathi,

Lal,

Sinha

2024

Int. J. Res. Agron.

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“…Furthermore, benomyl inhibits the growth of Cercospora beticola (Utlwang et al 2017). Carbendazim controls pathogens that cause leaf blight in sunflowers (Devi et al 2015) and Alternariaster helianthi (Jena et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…This fungicide cannot inhibit the development of fungi in plant tissues but is capable of multi-site inhibitors, which can inhibit the growth of fungi through several places in fungal cells (Rouabhi 2010). Furthermore, mancozeb can hinder the development of several phytopathogenic fungi, including Choanephora cucurbitarum (Chandrakala et al 2018) and A. helianthi (Jena et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of several fungicides on mycelial growth and conidial germination of Alternaria species causing leaf spots in sunflowers under in vitro conditions

MULJOWATI

Hikam

2023

Asian J Agric

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Abstract. Muljowati J, Hikam AR. 2023. Evaluation of several fungicides on mycelial growth and conidial germination of Alternaria species causing leaf spots in sunflowers under in vitro conditions. Asian J Agric 7: 47-51. Alternaria leaf spot caused by Alternaria species is the most destructive disease of sunflowers. Fungicides, such as mancozeb, carbendazim, benomyl, propiconazole, and iprodione, are commonly used to control diseases. However, the continuous use of synthetic fungicides can cause pathogen resistance to these fungicides. Therefore, the aim of this study was to conduct an in vitro test on the effect of fungicides, such as benomyl, carbendazim, mancozeb, iprodione, and propiconazole, on the mycelial growth and germination of conidia of Alternaria species causing leaf spot on sunflower. The experiment was performed in a completely randomized design with factorial patterns. The first factor was the type of fungicide, namely benomyl, mancozeb, iprodione, carbendazim, and propiconazole. The second factor was the concentration level of the (0%, 25%, 50%, 75%, 100%, and 125%) recommended dose. Data were Analyzed of Variance (ANOVA) using SPSS 18 version. The results showed that Alternaria species were resistant to carbendazim (32.98%) and benomyl (40.32%). It also shows an intermediate level of resistance to mancozeb (62.59%), iprodione (65.38%), and sensitivity to propiconazole (78.38%). Based on the research results, the authors suggest sunflower farmers use propiconazole to control Alternaria species. However, such fungicides may trigger the use of fungicides with higher doses than the recommended dose. That led to the emergence of Alternaria species resistant to the fungicides benomyl, carbendazim, mancozeb, and iprodione.

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Environmental Challenges on Leaf Spot and Blight of Sunflower (Helianthus annuus L.)

Cited by 2 publications

References 0 publications

Evaluate the effect of essential oils on disease incidence of Alternaria blight of sunflower Alternaria helianthi

Evaluate the effect of essential oils on disease incidence of Alternaria blight of sunflower Alternaria helianthi

Evaluation of several fungicides on mycelial growth and conidial germination of Alternaria species causing leaf spots in sunflowers under in vitro conditions

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