Multiple fungicide resistance to benzimidazoles, dicarboximides and diethofencarb in field isolates of <i>Botrytis cinerea</i> in Israel

Elad, Y.; Yunis, H.; Katan, Talma

doi:10.1111/j.1365-3059.1992.tb02314.x

Cited by 178 publications

(80 citation statements)

References 10 publications

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“…Carbendazime is a benzimidazole compound. Resistance to this group of chemicals has been described in powdery mildew fungi and other plant pathogenic fungi (Sedlikovi and Lebeda, 2008;Ma and Michailides, 2005;Elad et al, 1992). Tebuconazole is a triazole compound; resistance to these compounds has been found in Europe, the UK and Australia (Thomas et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

2013

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G. Sepúlveda-Chavera, R. Salvatierra-Martínez, and R. Andía-Guardia. 2013. The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile. Cien. Inv. Agr. 40(1):119-130. The powdery mildew complex (Leveillula taurica and Erysiphe sp.) is one of the major factors limiting tomato (Solanum lycopersicum) production in the Azapa Valley, Chile. This problem is especially severe in the case of protected crops because the options for the treatment of these crops with chemical fungicides are limited. This study evaluated the effects of 0.5 and 1.0 kg·100 L -1 Ospo-V55® and 10% raw cow's milk on tomato leaflets infected by powdery mildew complex. Ospo-V55®, with active ingredients consisting of 10% p/p of algae extract (IB-101) and 0.8% of microorganism concentrate, was evaluated in this study. Ospo-V55® contains flavonoids, alkaloids and phenols, oligo-and polysaccharides, 8.6% protein, 0.5% magnesium and trace amounts of riboflavin, niacin and ascorbic acid. Tacora Mas® (a mixture of 25% tebuconazole and 12.5% carbendazime) and Acoidal WG (wettable sulfur) were included for comparison with the Ospo-V55® and raw cow's milk treatments. A diagrammatic scale to assess the severity of the disease was validated and used to quantify the damage resulting from tomato powdery mildew and the effects of the treatments. The effect of the treatments on the germination of the conidia of L. taurica and Erysiphe sp. was also studied on water agar. Tacora Mas® provided the best control of powdery mildew in the field, followed by 1.0 kg·100 L -1 Ospo-V55® and Acoidal. However, Ospo-V55® was more effective than Acoidal. All treatments, including raw cow´s milk, significantly (P≤0.05) reduced disease severity in the leaf compared with the control. Both surfaces of the leaves were assessed, and better results were obtained on the upper surface. This difference was associated with differences in wetting. Acoidal was the most effective treatment for inhibiting conidia germination, decreasing germination more than 98.2%. This result differed significantly from the value of inhibition produced by Tacora Mas®. Ospo-V55® and raw cow´s milk showed significant differences (P≤0.05) in conidial germination compared with the control. Based on these results, we conclude that Ospo-V55 and raw cow´s milk can be used in an integrated management program as alternative treatments to control tomato powdery mildew complex.

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Section: Discussionmentioning

confidence: 99%

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

2013

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“…On the other hand, many phytopathogens have developed resistance against a lot of traditional chemicals used to control such phytopathogens [2][3][4][5][6][7][8][9][10][11][12][13][14], which in turn spur farmers to use larger quantities of such chemicals to in order to control the more resistive pests, which result in dangerous health consequences and more pollution hazards on the environment. So, it is hoped that new technologies, such as nanotechnology, may provide more efficient, cost-effective, and eco-friendly nanocides for controlling such pathogens.…”

Section: Introductionmentioning

confidence: 99%

Non-Dependency of In Vitro Fungicidal Efficiency of Copper Nanoparticles against Fusarium oxysporum upon Particle Size

Mohamed¹

2018

J Plant Pathol Microbiol

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Although many papers have consented that the smaller the size of nanoparticles, the higher their efficiency, this paper sheds light on one potential exception of this rule. The paper shows that the in vitro antifungal efficiency of copper nanoparticles against the fusarium wilt pathogen, Fusarium oxysporum, isolated from the infected date palm, Phoenix dactylifera L., is not size-dependent; instead, as it was found that larger copper nanoparticles have better in vitro antifungal efficiency against the fungal pathogen than smaller ones. Copper nanoparticles were synthesized via chemical reduction method at two different pH values, 6.5 and 10.5. Dynamic light scattering was used to measure their particle sizes, which were 345.1 nm and 278.1 nm, respectively. Transmission Electron Microscopy was used to figure out the shapes of nanoparticles, which were polygonal and spherical, respectively. Poison food essay was used to test their in vitro inhibition efficiencies against the fusarium wilt pathogen, F. oxysporum, isolated from the infected date palm, Phoenix dactylifera L., which were 46% and 19%, respectively; at the same concentration. Ultimately, the paper has proposed and discussed a potential reason beyond these unexpected findings, which relies upon the larger surface area to volume ratio of the polygonal copper nanoparticles compared to the spherical copper nanoparticles. The paper concluded that, despite their larger size, polygonal copper nanoparticles have better in vitro antifungal efficiency than spherical copper nanoparticles against F. oxysporum isolated from the infected date palm, Phoenix dactylifera L. at the same concentration.

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“…In practice a formulated carbendazim-diethofencarb mixture, introduced in 1987 initially gave good control of Botrytis, irrespective of whether pathogen populations were benzimidazole-resistant or not. However, the appearance and spread of strains resistant to both fungicides caused problems (Elad et al, 1992;Leroux and Moncomble, 1994) and the product is no longer used.…”

Section: Benzimidazolesmentioning

confidence: 99%

Industry Views of Monitoring and Mitigation of Herbicide Resistance

Soteres¹,

Peterson²

2015

Weed sci.

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Multiple fungicide resistance to benzimidazoles, dicarboximides and diethofencarb in field isolates of Botrytis cinerea in Israel

Cited by 178 publications

References 10 publications

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

Non-Dependency of In Vitro Fungicidal Efficiency of Copper Nanoparticles against Fusarium oxysporum upon Particle Size

Industry Views of Monitoring and Mitigation of Herbicide Resistance

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