Efficacy of strobilurins and mixtures with DMI fungicides in controlling powdery mildew in field-grown sugar beet

Karaoglanidis, G. S.; Karadimos, D. A.

doi:10.1016/j.cropro.2006.01.005

Cited by 31 publications

(20 citation statements)

References 23 publications

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“…This might have been caused by the late emergence of powdery mildew disease and short time for effective impact of fungicides. In Karaoglanidis and Karadimos (2006) experiment, the mixtures of active ingredients (a.i.) azoxystrobin and pyraclostrobin with either difenoconazole or cyproconazole showed higher efficacy of powdery mildew control compared to single applications of individual active ingredients.…”

Section: And 7)mentioning

confidence: 99%

Efficacy of fungicides in sugar beet crops

Avižienytė

Brazienė

Romaneckas

et al. 2016

Zemdirbyste-Agriculture

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Cercospora and ramularia leaf spot are the most damaging fungal diseases of sugar beet in Europe. The aim of the current study was to evaluate the severity of fungal diseases and the efficacy of various fungicides and their doses in sugar beet crops in Lithuania. A short-term field experiment was carried out in 2012 and 2013 at Rumokai Experimental Station, Lithuanian Research Centre for Agriculture and Forestry on a moderately heavy loam HapliEpihypogleyic Luvisol (LVg-p-w-ha). Fungicides Impact (a.i. flutriafol), Opus (a.i. epoxiconazole), Artea (a.i. propikonazole + cyproconazole), Folicur (a.i. tebuconazole), Opera N (a.i. pyraclostrobin + epoxiconazole) were applied as a single application at the beginning of the disease occurrence (in August) and as a double application, with one spray at the beginning of the disease occurrence (in August) plus a second spray one month later (in September). The experimental results showed that the main fungal diseases in the sugar beet crops tested were Cercospora beticola and Ramularia beticola. Erysiphe betae was of minor severity. The application of fungicides significantly decreased the severity of cercospora and ramularia leaf spots by on average 19.8-81.8% and 71.8-91.8%, respectively. The most effective fungicides were Opus (a.i. epoxiconazole) and Impact (a.i. flutriafol). A single or double application of all the investigated fungicides had essentially the same effect. The most effective against powdery mildew was fungicide Opus, treated twice. Various active ingredients of the fungicides had insignificant effect on sugar beet yield and sucrose content in the roots. A single application of the fungicide Artea 0.5 L ha -1 (a.i. propiconazole + cyproconazole) and a double application Opus 1.0 L ha -1 (a.i. epoxiconazole) and Folicur 1.0 L ha -1 (a.i. tebuconazole) significantly decreased the content of impurities (potassium, sodium, alpha amino nitrogen) in the sugar beet roots compared with the untreated control treatment.

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Section: And 7)mentioning

confidence: 99%

Efficacy of fungicides in sugar beet crops

Avižienytė

Brazienė

Romaneckas

et al. 2016

Zemdirbyste-Agriculture

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“…Karaoglanidisa and Karadimosb (2006) reported that efficacy of strobilurins increased when mixed with other broad spectrum or contact fungicides in controlling powdery mildew in field-grown sugar beet.…”

Section: Efficacy Of Fungicide On Per Cent Disease Index (Pdi)mentioning

confidence: 99%

Evaluation of Pre-Mix Fungicide, Fluxapyroxad and Pyraclostrobin 500 SC against Powdery Mildew (Oidium mangiferae) Disease of Mango

Ravikumar¹,

Navi²,

Sharma³

2018

Int.J.Curr.Microbiol.App.Sci

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“…Carbendazim-based products may be withdrawn from use in Australia and the development of resistance to sterol dimethylase inhibitor (DMI) fungicides by fungi similar to P. macadamiae (Karaoglanidis and Bardas 2006;Karaoglanidis and Karadimos 2006) highlights the need for additional control options. The mode of actions of carbendazim, a Group A fungicide that interferes with the nuclear division of fungi, and difenoconazole, a DMI product classified as Group C, differ from the strobilurins, which are classified as Group K (Australian Pesticides and Veterinary Medicines Authority 2006).…”

Section: Introductionmentioning

confidence: 99%

“…The mode of actions of carbendazim, a Group A fungicide that interferes with the nuclear division of fungi, and difenoconazole, a DMI product classified as Group C, differ from the strobilurins, which are classified as Group K (Australian Pesticides and Veterinary Medicines Authority 2006). Strobilurin fungicides were considered as an option as this new class of chemicals are effective against a broad range of diseases (Reuveni 2000(Reuveni , 2001Leskovar and Kolenda 2002;Bubici et al 2006;Karaoglanidis and Bardas 2006;Karaoglanidis and Karadimos 2006).…”

Section: Introductionmentioning

confidence: 99%

Alternative fungicides for controlling husk spot caused byPseudocercospora macadamiaein macadamia

Akinsanmi

Miles

Drenth

2008

Austral. Plant Pathol.

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Abstract. Husk spot, caused by Pseudocercospora macadamiae is a major fungal disease of macadamia in Australia. Chemicals to control the disease are limited and frequent failure to control the disease is a major concern to growers. The overall goal of this research was to improve the chemical control strategy of P. macadamiae through the provision of fungicides with different modes of action to carbendazim, which is the current industry standard. Husk spot incidence, premature fruit abscission, kernel quality and yield were evaluated following application of different fungicide products in replicated field experiments at three different sites. Results showed significant differences in disease incidence and premature fruit abscission between fungicide treatments, field sites and years. Generally, disease incidence and premature fruit abscission on trees treated with fungicide were significantly (P < 0.05) lower than the untreated control. Pyraclostrobin conferred significantly better protection than trifloxystrobin, reducing disease severity by 70% compared with a 50% reduction by trifloxystrobin. The pyraclostrobin treatment had a similar efficacy to the current industry standard (70% reduction cf. 73% reduction by tank-mixed carbendazim and copper). Higher amounts of immature kernels occurred in the untreated control, followed by difenoconazole and trifloxystrobin. Diseased fruit accounted for 78% of premature fruit abscission, which indicates that husk spot enhances fruit abscission in macadamia. Our results suggest that pyraclostrobin provided similar efficacy to the industry standard and could, therefore, play a key role in the management of husk spot.

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Efficacy of strobilurins and mixtures with DMI fungicides in controlling powdery mildew in field-grown sugar beet

Cited by 31 publications

References 23 publications

Efficacy of fungicides in sugar beet crops

Efficacy of fungicides in sugar beet crops

Evaluation of Pre-Mix Fungicide, Fluxapyroxad and Pyraclostrobin 500 SC against Powdery Mildew (Oidium mangiferae) Disease of Mango

Alternative fungicides for controlling husk spot caused byPseudocercospora macadamiaein macadamia

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