Evaluation of film forming polymers to control apple scab (Venturia inaequalis (Cooke) G. Wint.) under laboratory and field conditions

Percival, Glynn C.; Boyle, Shirley

doi:10.1016/j.cropro.2008.08.005

Cited by 15 publications

(9 citation statements)

References 30 publications

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“…A key stage of apple scab control is spraying during full bloom (Percival and Boyle ; Percival et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…; Pimentel and Burgess ). In recent years, public demands reduced pesticide use, stimulated by greater awareness of environmental and health issues associated with fungicide residues, as well as the development of strains of V. inaequalis resistant to synthetic fungicides which limit the effectiveness of conventional pesticide management strategies (Percival and Boyle ; Jamar et al. ; Slatnar et al.…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of Boric Acid, Monopotassium Phosphate and Sodium Metabisulfite on the Control of Apple Scab

Arslan

2016

Journal of Phytopathology

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In vitro experiments indicated that boric acid, monopotassium phosphate, sodium metabisulfite and synthetic fungicide fluopyram + tebuconazole were effective in inhibiting conidia germination and germ-tube elongation of Venturia inaequalis. Monopotassium phosphate even at the highest concentration used in the study reduced conidia germination and germ-tube elongation of V. inaequalis by 22.1% and 28.8%, respectively; however, the difference between two compounds at lower concentrations except 0.05% (for conidia germination) and 0.1% (for germ-tube elongation) of boric acid was statistically significant (P ≤ 0.05). Complete inhibition was achieved by 0.01% sodium metabisulfite, 0.035% fluopyram + tebuconazole and 0.2% boric acid. Two orchard trials were conducted on the highly susceptible cv. Mutsu to apple scab to ascertain the efficacy of 0.2% boric acid, 0.5% monopotassium phosphate, 0.5% sodium metabisulfite and 0.035% fluopyram + tebuconazole for the control of apple scab. In both 2013 and 2014, except for the applications of monopotassium phosphate and sodium metabisulfite, the applications of boric acid and fluopyram + tebuconazole to trees at 10-day intervals significantly reduced disease incidence and severity on leaves and fruit compared to the watertreated control. In both years, the efficacy of boric acid and fluopyram + tebuconazole treatments was similar in reducing both disease incidence and severity on leaves and fruit in all monthly assessments from July to September. All treatments were neither phytotoxic to leaves and fruit nor did they adversely affect quality parameters of harvested fruit. These results show that boric acid treatment may be applied as an alternative chemical for the control of apple scab.

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“…A key stage of apple scab control is spraying during full bloom (Percival and Boyle ; Percival et al. ).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficacy of Boric Acid, Monopotassium Phosphate and Sodium Metabisulfite on the Control of Apple Scab

Arslan

2016

Journal of Phytopathology

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“…The water activity, and not the water content, determines the lower limit of available water for microbial growth. Percival and Boyle showed that, just like kaolin, zeolites could provide protection against apple scab ( Venturia inaequalis ) by preventing a liquid film. By absorbing condensing water, the zeolites prevent the formation of the liquid film of water that is required for many fungal and bacterial pathogens for disease propagule germination …”

Section: Zeolites: a Good Particle Film For Controlling Pests And Dismentioning

confidence: 99%

Potential and actual uses of zeolites in crop protection

Smedt

Someus²,

Spanoghe

2015

Pest. Manag. Sci.

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In this review, it is demonstrated that zeolites have a potential to be used as crop protection agents. Similarly to kaolin, zeolites can be applied as particle films against pests and diseases. Their honeycomb framework, together with their carbon dioxide sorption capacity and their heat stress reduction capacity, makes them suitable as a leaf coating product. Furthermore, their water sorption capacity and their smaller particle sizes make them effective against fungal diseases and insect pests. Finally, these properties also ensure that zeolites can act as carriers of different active substances, which makes it possible to use zeolites for slow-release applications. Based on the literature, a general overview is provided of the different basic properties of zeolites as promising products in crop protection.

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“…Film-forming polymers can be used as anti-transpirants in agriculture and horticulture to protect plants from severe water loss (Farelli et al, 2016;Kettlewell et al, 2010). In addition to protecting plants from abiotic stress these polymers also showed promise as products for disease management in protected and field-grown crops against a number of fungal diseases (Elad et al, 1990;Han, 1990;Haggag, 2002;Percival et al, 2006;Percival and Boyle, 2009). This study examined the potential of an arabinoxylan polymer derived from maize to control fungal diseases in spring barley.…”

Section: Discussionmentioning

confidence: 99%

“…hordei on barley under controlled environment conditions and in the field (Sutherland and Walters, 2002). Percival and Boyle (2009) showed that film-forming polymers could reduce the development of Venturia inaequalis and the severity of scab disease on apple. However, it was noted that the control conferred by the various polymers tested was not as effective as a typical fungicide treatment.…”

Section: Introductionmentioning

confidence: 99%

In-field assessment of an arabinoxylan polymer on disease control in spring barley

et al. 2018

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With the threat of certain plant protection products becoming ineffective due to reduced pathogen sensitivity to fungicides or through the removal of products due to changes in legislation, alternative compounds are sought for use in disease management programmes.The effects of an arabinoxylan film-forming polymer derived from maize cell walls to control crop diseases of spring barley was assessed in field experiments. Control of powdery mildew, Rhynchosporium scald, and Ramularia leaf spot on barley was achieved with the polymer but control was inconsistent between trials. However, good levels of disease control were observed when the polymer was applied with a reduced fungicide programme. No yield penalties were associated with use of the polymer in any trial irrespective of the level of disease control. Alternative plant protection products such as this arabinoxylan polymer may be useful components in future integrated disease management strategies aimed at reducing fungicide inputs without any cost to disease control. Highlights• Disease management using an arabinoxylan polymer were assessed • Polymer-mediated control varied between sites, year, crop variety and disease• Combined polymer plus reduced fungicide application offered more consistent control• No yield penalties were associated with polymer applications • Polymers may be useful as an early treatment in integrated disease management

show abstract

Evaluation of film forming polymers to control apple scab (Venturia inaequalis (Cooke) G. Wint.) under laboratory and field conditions

Cited by 15 publications

References 30 publications

Efficacy of Boric Acid, Monopotassium Phosphate and Sodium Metabisulfite on the Control of Apple Scab

Efficacy of Boric Acid, Monopotassium Phosphate and Sodium Metabisulfite on the Control of Apple Scab

Potential and actual uses of zeolites in crop protection

In-field assessment of an arabinoxylan polymer on disease control in spring barley

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