Comparative efficacy of some bioagents, plant oil and plant aqueous extracts in controlling Meloidogyne incognita on growth and yield of grapevines

Mervat, A.A.; Shawky, Samaa; Shaker, Ghada

doi:10.1016/j.aoas.2012.03.009

Cited by 18 publications

(11 citation statements)

References 13 publications

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“…On addition, the positive action of these extracts on stimulating the biosynthesis of sugars and plant pigments surely reflected on advancing maturity and promoting fruit quality. These results are in agreement with those obtained by Kubota et al (1999), Ali-Mervat et al (2012), Gadel-Kareem and AbdelRahman (2013), Abada (2014), Ahmed et al (2014), Uwakiem (2014), Rizkalla (2016) and Gouda-Fatma-ElZahraa (2016).…”

Section: Discussionsupporting

confidence: 83%

Effect of some Plant Extracts Spraying on Growth and Fruiting of Flame Seedless Grapevines

2017

AJAS

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The present investigation was carried out during 2013, 2014 and 2015 seasons to study the effect of plant extracts on growth and fruiting of Flame Seedless grapevines. The experiment was arranged in a randomized complete block design in which the study involved seven treatments with three replications, two vines each.Pruning wood weight, leaf area and leaf chlorophyll were significantly increased by spraying either garlic, turmeric or roselle extracts compared to unsprayed ones. Spraying garlic, turmeric or roselle extracts were very effective in improvement the yield/vine and cluster traits. Moreover, these treatments significantly improved the berry quality in terms of increasing the berry weight, total soluble solids and anthocyanin in skin of berries compared to unsprayed ones. The best results were obtained on the vines that sprayed with 0.2% turmeric extract. No significant differences were obtained among the tested extract. It could be concluded that spraying turmeric, roselle or garlic extract at 0.1% three times annually was necessary to get high yield with good cluster and berry quality of Flame Seedless grapevines.

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Section: Discussionsupporting

confidence: 83%

Effect of some Plant Extracts Spraying on Growth and Fruiting of Flame Seedless Grapevines

2017

AJAS

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“…It is clear from the data in Table 1 that total chlorophyll content in the leaves was positively affected by the application of jojoba oil extract, micronized sulfur and cluster thinning respectively compared to the Neem oil treatment and the control which showed no significant effect on the chlorophyll content for leaves. The Jojoba oil treatments alone (Mervat et al, 2012) or accompanied by cluster thinning were significantly superior to that of the control in this concern, the maximum values of total chlorophyll were obtained in vines received jojoba oil plus cluster thinning treatment. Jojoba oil is composed almost entirely (~97%) of mono-esters of long-chain fatty acids and alcohols, these fatty acids enter in the composition of thylakoids which are membrane-bound compartments inside of the chloroplasts.…”

Section: Leaf Pigments Content (Chlorophyll)mentioning

confidence: 65%

“…These results are in harmony with those of Filippetti et al (2007) who found that the ratio between total leaf area and production 1.7 and 2.3 for the control and the thinned cluster respectively. Mervat et al (2012) found that jojoba oil was an effective treatment in improving the vegetative growth parameters and increased the total surface area/vine.…”

Section: Morphological Measurements Leaf Area (Cm²)mentioning

confidence: 98%

“…Spraying with Jojoba oil plus thinning significantly was accompanied with improving quality of the berries in terms of increasing TSS %, and total sugars and reducing total acidity % in relative to the other treatments and the control in both seasons with no significant results between the thinning treatments (T5, T7, T8).Similar results were obtained by Kurtural et al (2006) who found that as the severity of cluster thinning increased, TSS and pH increased linearly. Moreover, Mervat et al (2012) found that jojoba oil was an effective treatment in enhancing the TSS % and TSS/acidity ratio whereas, acidity was decreased in berry juice. These results are in conformity with those obtained by Reynolds et al (2007) who stated that supplementary foliar sprays with Jojoba and canola oils reduced berry and must titratable acidity and increased berry, must and wine pH.…”

Section: Chemical Characteristicsmentioning

confidence: 99%

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Effect of Some Organic Compounds and Cluster Thinning on Quality Characteristics and Powdery Mildew of Flame Seedless

2016

NIDOC-ASRT

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HE APPLICATION of some organic materials, Jojoba oil, Neem oil and micronized sulfur, sprayed alone or accompanied with cluster thinning was studied on Flame Seedless grapevine. The experiment was conducted in the 2013 season and extended for two successive seasons. It comprised eight treatments to improve berry quality and limiting the powdery mildew progression. Results indicated that spaying with Jojoba oil, Neem oil had a negative effect on the propagation of Powdery Mildew 'Uncinulla necator'similar to micronized sulfur and they could be a valid alternative control. Jojoba oil plus cluster thinning treatment was the most effective in stimulating all growth characters and increasing significantly the TSS% and anthocyanin but it lowered the yield than the Jojoba oil treatment. Yield compensation was achieved by an increase in cluster weight of about 53%, in response to a reduction of 33%, in cluster numbers. Neem oil had no significant effect on chemical composition but significantly increased yield by 43% by lowering the number of infected berries per cluster.

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“…are important pests of grapevine (Vitis vinifera L.) which may cause up to 60% yield loss (Nicol and Heeswijck, 1997;Riley and Walker, 2006;Pietsch and Burne, 2008;Australian Wine Research Institute, 2010). Several pest management techniques including resistant rootstocks (McKenry and Anwar 2006;Gutiérrez et al, 2011;Ferris et al, 2012), plant extracts and bioagents (Mervat et al, 2012), organic matter to complement plant nutrition and promote biological control agents (Adb-El-Khair et al, 2009;Australian Wine Research Institute, 2010), cover crop management inside vineyards ( Quader et al, 2001;Addison and Fourie, 2008;Kruger et. al., 2015) to reduce pest dispersal, and chemical control (Rajendan and Naganathan 1978;Loubser and Meyer, 1986;Australian Wine Research Institute, 2010) have been tested with varying degrees of success.…”

Section: Introductionmentioning

confidence: 99%

Chemical control of <i>Meloidogyne spp.</i> in grapevines (<i>Vitis vinifera</i>)

German¹,

Tobar²,

Eduardo³

et al. 2019

J. App. Bioscience.

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Objective: to determine the effect of increasing rates of Mocap® 6EC (ethoprophos-AMVAC) on grape (Vitis vinifera) own-rooted cv. Flame and cv Red Globe grafted onto Quebranta rootstock Meloidogyne spp. control. Methodology and Results: two field experiments of increasing rates of 0, 6, 8, 10, and 12 L ha-1 of Mocap® 6EC (ethoprophos-AMVAC) using a complete randomized block design with 4 replicates were set up on grape (Vitis vinifera) own-rooted cv. Flame and cv Red Globe grafted onto Quebranta rootstock for Meloidogyne spp. control. To quantify nematode numbers in soil and roots, and the number of galls in a linear meter root, soil and root samples were taken just before treatment and at 30, 60 and 90 days after product application. In both experiments, at 30, 60 and 90 days after the application, a decreasing linear effect on Meloidogyne spp. numbers in soil (P< 0.0001) and roots (P≤ 0.0002) and number of galls (P< 0.0001) was observed as rate increased. The average reduction was of 4.6, 4.9 and 5.2; and 5.5, 6.0 and 6.3 individuals per 100 g of soil, and 5.6, 9.9 and 9.9, and 4.9, 7.7 and 8.2 nematodes per 100 g of roots, and 2.0, 4.0 and 4.3, and 1.8, 3.9 and 4.9 galls per linear meter of root, by every litre of increase on the applied rate, at 30, 60 and 90 days post application, for the experiment at Ica and Lima department, respectively. Differences in biological efficacy among rates were found for soil (P< 0.0001) and root (P< 0.0001) nematode control, and number of root galls (P< 0.0001), increasing the control as the rate increased in both experiments. Efficacy in soil nematode control varied from 51 to 98% and 73 to 99%, in roots it varied from 61 to 85% and 61 to 87%, and in the number of root galls from 55 to 84%, and 58 to 81% for the experiment at Ica and Lima department, respectively. Conclusions and application of findings: All Mocap® 6EC rates tested reduced Meloidogyne spp. in soil and roots, and the number of galls per linear meter of root, with higher reductions as the rate increased. Then the recommended rate is 10-12 L ha-1 incorporated in a drip irrigation of two hours.

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Comparative efficacy of some bioagents, plant oil and plant aqueous extracts in controlling Meloidogyne incognita on growth and yield of grapevines

Cited by 18 publications

References 13 publications

Effect of some Plant Extracts Spraying on Growth and Fruiting of Flame Seedless Grapevines

Effect of some Plant Extracts Spraying on Growth and Fruiting of Flame Seedless Grapevines

Effect of Some Organic Compounds and Cluster Thinning on Quality Characteristics and Powdery Mildew of Flame Seedless

Chemical control of <i>Meloidogyne spp.</i> in grapevines (<i>Vitis vinifera</i>)

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