Studies on effectiveness of certain new fungicides in controlling stemphylium blight of onion seed crop

Bhatia, Jagriti; Chahal, Devender

doi:10.5958/0976-0547.2014.01011.8

Cited by 12 publications

(4 citation statements)

References 1 publication

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“…The present findings are in close agreement with those earlier reported by Upamanyu (1999), Deshmukh et al (2007), Beig et al (2008), Aujila et al (2010), Aujila et al (2013) and Bhatia and Chahal (2014) who have also reported the superiority of tebuconazole, propiconazole, difenoconazole and hexaconazole over conventional fungicides in controlling the disease. Similarly, the present findings are also in agreement with earlier reported by Vincelli (2002), Nelson andMeinhardt (2011), Henry et al (2011) and Hill et al (2013) who have reported the growth promoting effects of strobilurins in several plant species.…”

Section: In Vivo Evaluation Of Different Fungicides Against Onion Pursupporting

confidence: 83%

Management of Purple Blotch Complex of Onion in Indian Punjab

Yadav¹,

Singh

Jain

et al. 2017

Int J Appl Sci Biotechnol

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Six systemic fungicides viz., Kitazin 48 EC (iprobenfos), Tilt 25 EC (propiconazole), Folicur 25 EC (tebuconazole), Score 25 EC (difenoconazole), Amistar Top 325 SC (azoxystrobin 18.2% + difenoconazole 11.4%) and Nativo 75 WG (trifloxystrobin 25% + tebuconazole 50%), and two non-systemic fungicides viz., Indofil M-45 75 WP (mancozeb) and Kocide 77 WP (copper hydroxide), were evaluated under in vitro and field conditions for their efficacy to manage purple blotch complex of onion caused by Alternaria porri and Stemphylium vesicarium. Field efficacy of the fungicides at different concentrations were determined in controlling the purple blotch complex of onion under artificial epiphytotic conditions on bulb and seed crop (cultivar PRO-6) during the Rabi season 2014-2015 and 2015-2016, respectively. The triazole fungicides, tebuconazole and difenoconazole proved superior in inhibiting growth of A. porri and S. vesicarium under in vitro conditions, respectively. Further, foliar sprays (3 for bulb crop and 4 for seed crop) of tebuconazole 25 EC (Folicur) @ 0.1 per cent at fortnightly interval most effectively managed purple blotch complex of onion under field conditions with highest Benefit: Cost ratio (8.75:1 and 88.7:1) in bulb and seed crop, respectively. Seed-to-seed method of onion seed production recorded significantly lower disease severity and higher seed yield than that of bulb-to-seed method under natural epiphytotic conditions. The present findings can be instrumental in devising strategy for the integrated management of A. porri, S. vesicarium singly as well as in complex, serious limiting biotic factors in onion production.

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Section: In Vivo Evaluation Of Different Fungicides Against Onion Pursupporting

confidence: 83%

Management of Purple Blotch Complex of Onion in Indian Punjab

Yadav¹,

Singh

Jain

et al. 2017

Int J Appl Sci Biotechnol

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“…Ureba et al (1998) found Tebuconazole effective in controlling garlic leaf spots. Bhatia and Chahal (2014) reported that Tebuconazole 25.9EC, Propiconazole 25EC etc are effective in managing stemphylium blight in onion. Results of field trials by Gupta et al (2021) showed that alternative spray of Paraclostrobin+ Metiram, Trifloxistrobin + Tebuconazole, Zineb+ Hexaconazole and Carbendazim + Mancozeb were most effective in reducing stemphylium leaf blight, purple blotch as well as increased yield.…”

Section: Gross and Marketable Yieldmentioning

confidence: 99%

Combined efficacy of bio-pesticides and fungicides on stemphylium blight disease of onion (Allium cepa)

Pandey¹,

Gupta²,

Gupta³

et al. 2023

EEC

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A field trial was conducted at Regional Research Station, NHRDF, Nashik in three consecutive years during Kharif 2016, 2017 and 2018 on onion variety Agrifound Dark Red for the management of stemphylium blight disease of onion through soil application of bio-pesticide and sequential spray of different fungicides. The pooled result showed that, significantly minimum stemphylium blight incidence (52.22%) with intensity (4.0%) and highest gross yield (218.51 q/ha) with marketable (174.94 q/ha) as well as highest benefit cost ratio (7.83:1) were recorded in the treatment Soil application of Arka Microbial Consortia @ 12.50 kg/ha followed by sequential sprays of Propiconazole @ 0.1% at 25 DAT, Hexaconazole @ 0.1% at 50 DAT and Tricyclazole @ 0.1% at 75 DAT

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“…×óòëèâèìè áóëè ³çîëÿòè äî ³ïðîä³îíó, ôëóêñàï³ðîêñàìó òà ôëóîï³ðàìó, ùî º àêòèâíèìè ³íãðåä³ºíòàìè ñó÷àñíèõ ôóíã³öèä³â [13]. Çà äàíèìè Bhatia J.N., Chahal D. ïåðñïåêòèâíèìè ó çàõèñò³ â³ä ñòåì-ô³ë³îçó º òåáóêîíàçîë, ïðîï³êîíàçîë, êàðáåíäàçèì + ìàíêîöåá [19]. Sharma A.B.…”

Section: ðîçâèòîê õâîðîá öèáóë³ ð³ï÷àñòî¿ â ïåð³îä âåãåòàö³¿ íà ïðèðî...unclassified

Fungicidal control of the most common onion mycoses during the growing season

Borzykh¹,

Sergienko²,

Dzham³

et al. 2023

qpp

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Goal. To investigate the effectiveness of fungicidal control of the most common onion diseases during the growing season. Methods. Informational and analytical (collection of materials and analysis of literary sources), field research (setting up experiments, carrying out treatments and records of plant damage by diseases, monitoring the development of plants, harvesting), phytopathological (determination and identification of pathogens), mathematical and statistical (processing of results studies). Experiments were conducted on different varieties and hybrids using modern fungicides with different active substances. Results. During the years of research, onion crops were dominated by mycoses, namely, peronosporosis, alternaria, stemphylliosis, and fusarium wilt. Downy mildew and leaf spots were observed on all varieties and hybrids. The investigated fungicides most effectively controlled the development of downy mildew of onions. Their efficiency during the growing season averaged 55.1—100%, depending on the drug, the degree of disease development and the variety. The highest effectiveness against downy mildew of onions was provided by fungicides Fandango 200 ES, KE (fluoxystrobin, 100 g/l + proteoconazole, 100 g/l) at the rate of 1.25 l/ ha and Signum VG (boskalid, 267 g/ kg + pyraclostrobin, 67 g/ kg) — 1.5 kg/ ha. Fungicides were 45.8—89.1% effective against leaf spots (alternaria and stemphyllosis), 57.9—70.5% against fusarium wilt. Treatments with fungicides, due to the reduction of plant damage by diseases, contributed to the increase in onion yield by 1.3—6.9 t/ha, depending on the variety and preparation. Among the studied varieties, the highest yield was obtained on the Medusa variety (40.7 t/ha), among fungicides, the highest yield increase was provided by Fandango 200 ES, KE fungicide (1.25 l/ha). Conclusions. Fungicides effectively controlled the main mycoses of onion (peronosporosis, alternariosis, stemphyllosis and fusarium wilt) during the growing season. The effectiveness of fungicides against onion diseases was 45.8—100%, depending on the type of disease, drug and crop variety. The highest protective effect of fungicides was provided against downy mildew of onions. The yield of the researched varieties and hybrids increased by an average of 5—25% due to the reduction of plant damage by diseases. The highest technical efficiency against identified diseases and increase in onion yield was obtained by using Fandango 200 ES, KE fungicide with a consumption rate of 1.25 l/ha.

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Studies on effectiveness of certain new fungicides in controlling stemphylium blight of onion seed crop

Cited by 12 publications

References 1 publication

Management of Purple Blotch Complex of Onion in Indian Punjab

Management of Purple Blotch Complex of Onion in Indian Punjab

Combined efficacy of bio-pesticides and fungicides on stemphylium blight disease of onion (Allium cepa)

Fungicidal control of the most common onion mycoses during the growing season

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