Comparative studies on the effects of a yucca extract and acibenzolar-S-methyl (ASM) on inhibition of Venturia inaequalis in apple leaves

Bengtsson, Marianne; Wulff, E. G.; Jørgensen, Hans Jørgen Lyngs; Pham, A.; Lübeck, Mette; Hockenhull, J.

doi:10.1007/s10658-008-9405-z

Cited by 29 publications

(10 citation statements)

References 23 publications

(8 reference statements)

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“…A satisfactory level of downy mildew control in grapevine has been obtained by using Yucca schidigera and Salvia officinalis extracts as well as Trichoderma harzianum (Dagostin et al 2011). Likewise, Yucca schidigera extracts allowed a good level of scab control in apple (Bengtsson et al 2009). Application of vinasse on leaf residues stimulated leaf degradation and reduction of Venturia inaequalis ascospore production, offering a good management option in apple orchards (Heijne et al 2007).…”

Section: Alternatives To Copper Compoundsmentioning

confidence: 99%

Thirteen decades of antimicrobial copper compounds applied in agriculture. A review

Lamichhane¹,

Osdaghi

Behlau

et al. 2018

Agron. Sustain. Dev.

418

273

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Since the initial use of Bordeaux mixture in 1885 for plant disease control, a large number of copper-based antimicrobial compounds (CBACs) have been developed and applied for crop protection. While these compounds have revolutionized crop protection in the twentieth century, their continuous and frequent use has also raised concerns about the long-term sustainability of copper (Cu)-based crop protection system. Here, we review CBACs used in crop protection and highlight their benefits and risks, and potential for their improvement and opportunities for further research to develop alternatives to CBACs. The major findings are (i) the relatively high toxicity to plant pathogens, low cost, low mammalian toxicity of the fixed Cu compounds, and their chemical stability and prolonged residual effects are major benefits of these compounds; (ii) phytotoxicity, development of copper-resistant strains, soil accumulation, and negative effects on soil biota as well as on food quality parameters are key disadvantages of CBACs; (iii) regulatory pressure in agriculture worldwide to limit the use of CBACs has led to several restrictions, including that imposed by the regulation 473/2002 in the European Union; and (iv) mitigation strategies to limit the negative effects of CBACs include their optimized use, soil remediation, and development and application of alternatives to CBACs for a sustainable crop protection. We conclude that recent research and policy efforts have led to the development of a number of alternatives to CBACs, which should be further intensified to ensure that growers have sufficient tools for the implementation of sustainable crop protection strategies.

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Section: Alternatives To Copper Compoundsmentioning

confidence: 99%

Thirteen decades of antimicrobial copper compounds applied in agriculture. A review

Lamichhane¹,

Osdaghi

Behlau

et al. 2018

Agron. Sustain. Dev.

418

273

View full text Add to dashboard Cite

show abstract

“…In organic apple growing, just a few approved chemical products are available for disease control, mainly based on sulphur and copper (Holb, 2008); various natural plant extracts containing triterpenoid saponins, polyphenols and specific flavonoids have been reported to have antifungal properties (Köhl et al, 2007;Bahraminejad et al, 2008;Bengstsson et al, 2009;Jamar et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Management of Apple Scab and Powdery Mildew Using Bicarbonate Salts and Other Alternative Organic Products with Fungicide Effect in Apple Cultivars

Mitre

Buta

Lukacs

et al. 2018

Not Bot Horti Agrobo

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The control of apple scab and powdery mildew is a challenge for organic fruit growing. Bicarbonate salts are already consecrate in reducing the attack of scab and powdery mildew in organic apple culture. In the current study the influence of some products accepted in organic apple production to control scab and powdery mildew (potasium bicarbonate, lime sulphur, wettable sulphur, potassium silicate, cooper ammonium-phosphate, potassium bicarbonate + potassium silicate, potassium bicarbonate + wettable sulphur) in comparison with untreated control, were used. The biological material was represented by three scab resistant cultivars ('Luna', 'Topaz' and 'Sirius') and three scab susceptible cultivars ('Elstar', 'Pinova' and 'Golden Delicious'). The experiments were carried out during 2014-2016 at Steluța LTD, Cluj-Napoca, N.W. Romania, as a bifactorial experiment arranged in randomized blocks. The trees were planted in 2011 at a density of 3,175 trees/ha. Depending of the year, a number of 18-22 treatments were made annually after each rain. It can be concluded that the combination of potassium bicarbonate + wettable sulphur significantly reduced the attack degree of scab and powdery mildew on leaves and fruits and increased the yield of the scab-susceptible and scab resistant cultivars. Good results were obtained in the case of treatment with potassium bicarbonate with potassium silicate, potassium bicarbonate and cooper ammonium phosphate. The treatments with the products used in the experiments did not register symptoms of phytotoxicity on leaves or fruits, except lime sulphur and wettable sulphur and cooper ammonium phosphates.

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“…The biological effect of this desert plant has been demonstrated against plant pathogens such as Pythium ultimum , Fusarium oxysporum , Alternaria solani , Colletotrichum coccodes and Verticillium dahliae in amended agar plate assays (Chapagain et al. , 2007) and in planta against Venturia inaequalis and related foliar pathogens of apple and pear (Bengtsson et al. , 2007, 2009).…”

Section: Introductionmentioning

confidence: 99%

Yucca schidigera extract: a potential biofungicide against seedborne pathogens of sorghum

et al. 2011

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Treatment of seeds with an aqueous extract of yucca (YE), Yucca schidigera, was evaluated for antifungal activity against seedborne pathogens as well as its effect on seed germination and seedling growth of sorghum (Sorghum bicolor). The antifungal effect of YE was observed against Leptosphaeria sacchari (syn. Phoma sorghina) when the extract was applied at 2AE5 and 10% concentrations. At 10% concentration, YE significantly reduced not only the incidence of L. sacchari, but also that of Fusarium spp., Cochliobolus lunatus (syn. Curvularia lunata) and Cladosporium spp. The effect of 10% YE on seedborne fungi was broader than the fungicide fludioxonil, particularly with regard to Fusarium. Furthermore, the number of normal, healthy-looking seedlings increased in a dose-responsive manner with YE treatment. Seedling vigour was also stimulated by YE but no correlation was observed with the concentrations tested. Under glasshouse conditions, the treatment of seeds with 10% YE increased the emergence of seedlings and plant height and reduced the number of seedlings with crown rot compared to negative controls and saponin. The positive effect was similar to the effect obtained with fungicide-treated seeds. Treatment of seeds with synthetic saponin inhibited seedborne fungi less effectively and also negatively affected germination and vigour of the seedlings, compared to the treatment with YE. The results demonstrate an agronomic potential for the use of YE as a biofungicide for seed treatment of sorghum. The difference between the antifungal and the vigour-stimulating effects of YE warrants further investigation.

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Comparative studies on the effects of a yucca extract and acibenzolar-S-methyl (ASM) on inhibition of Venturia inaequalis in apple leaves

Cited by 29 publications

References 23 publications

Thirteen decades of antimicrobial copper compounds applied in agriculture. A review

Thirteen decades of antimicrobial copper compounds applied in agriculture. A review

Management of Apple Scab and Powdery Mildew Using Bicarbonate Salts and Other Alternative Organic Products with Fungicide Effect in Apple Cultivars

Yucca schidigera extract: a potential biofungicide against seedborne pathogens of sorghum

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