Spray treatments combined with climate modification for the management of Leveillula taurica in sweet pepper

Brand, Michal; Messika, Yoel; Elad, Y.; David, Dalia Rav; Sztejnberg, A.

doi:10.1007/s10658-008-9421-z

Cited by 21 publications

(11 citation statements)

References 37 publications

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“…Under favorable conditions for the fungi, a rapid increase of a foliar lesion is caused, reducing photosynthetic activity of the plant [17]. Traditionally, this disease is chemically controlled by fungicides [18], which causes negative effects on the environment [19] and increases cost of production due to fungicide resistance in fungal populations [20]. Other alternatives, like biological or by means of systemic acquired resistance (SAR) have been researched [21,22].…”

Section: Introductionmentioning

confidence: 99%

Using UV-C radiation and image analysis for fungus control in tomato plants

Valencia¹,

Patiño²,

Herrera-Ramírez³

et al. 2017

Opt. Pura Apl.

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Section: Introductionmentioning

confidence: 99%

Using UV-C radiation and image analysis for fungus control in tomato plants

Valencia¹,

Patiño²,

Herrera-Ramírez³

et al. 2017

Opt. Pura Apl.

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“…The powdery mildews can be controlled chemically (Brand et al, 2009;Rongai et al, 2009;Bizi et al, 2008), biologically (hyperparasitism) (Kiss, 2003) or by means of systemic acquired resistance (SAR) (Belanger and Labbe, 2002). However, there is little information about the relative efficiency of these control strategies against the powdery mildew complex of tomato in the Azapa Valley.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Both sulfur and the synthetic fungicides can be phytotoxic and/or ecotoxic, negatively affecting beneficial organisms (Brand et al, 2009;Coats et al, 2003). Despite the effectiveness of synthetic fungicides and the low cost of sulfur treatments, there is a strong interest in evaluating new methods to control tomato powdery mildew (Brand et al, 2009;Rongai et al, 2009;Bizi et al, 2008;Belanger and Labbe, 2002). Different studies (Belanger and Labbe, 2002;Rivera, 2001 andBettiol, 1999) have suggested that cow's milk helps to control powdery mildew due to its germicidal effect, induction of SAR and/or tendency to favor the multiplication of antagonists.…”

Section: Introductionmentioning

confidence: 99%

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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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“…Salmon] is a serious disease affecting the leaves of pepper grown in greenhouses and in the field. The disease is controlled in pepper crops by means of frequent application of synthetic fungicides and sulphur (Brand et al 2009;Sudha, Lakshmanan 2009). The strobilurin fungicides (e.g.…”

mentioning

confidence: 99%

Effects of field bindweed (Convolvulus arvensis L.) and powdery mildew [Leveillula taurica (Lev.) Arn.] on pepper growth and yield - Short communication

Karkanis¹,

Bilalis²,

Efthimiadou³

et al. 2012

Hort. Sci. (Prague)

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Field experiments were conducted to determine the effects of field bindweed and powdery mildew on growth and yield of a pepper crop. This study also evaluated the efficacy of fungicide application programs for controlling powdery mildew. Field bindweed influenced growth and yield of pepper. The greatest dry weight and yield of pepper were recorded with weed-free control treatment. Moreover, powdery mildew was severe. The fungicide application programs positively influenced growth and yield of pepper. The control plots had the lowest yield of pepper. The first symptoms of powdery mildew on pepper plants developed 20-25 days after powdery mildew diagnosis on field bindweed. Two azoxystrobin applications, at 10 and 25 days after infection of field bindweed by powdery mildew, restricted the disease progress. Our results indicate that field bindweed is highly susceptible to powdery mildew infection and could be used as an indicator species of L. taurica presence in pepper plants.

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Spray treatments combined with climate modification for the management of Leveillula taurica in sweet pepper

Abstract: The effects of several spray and climate treatments on Leveillula taurica were tested under controlled and commercial greenhouse conditions either alone or combined with a climate treatment. Ampelomyces quisqualis AQ10 inhibited the germination of conidia on leaves, but not on glass.

Cited by 21 publications

References 37 publications

Using UV-C radiation and image analysis for fungus control in tomato plants

Using UV-C radiation and image analysis for fungus control in tomato plants

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

Effects of field bindweed (Convolvulus arvensis L.) and powdery mildew [Leveillula taurica (Lev.) Arn.] on pepper growth and yield - Short communication

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