Evaluation of some non-fumigant nematicides and the biocide avermactin for managing Meloidogyne incognita in tomatoes

Saad, A. S. A.

doi:10.18681/pjn.v35.i01.p85-92

Cited by 19 publications

(23 citation statements)

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“…Indeed, avermectins have already been proven nematicidal and eff ective in reduc-ing nematode populations both in soil and the roots of infested plants. Regardless the method of application, our fi ndings confi rmed published reports in which ABM was eff ective against root-knot nematodes on cotton (Faske and Starr, 2007), tomato (Qiao et al, 2012;Ullah et al, 2015;Saad et al, 2017) and cucumber (Huang et al, 2014). Nursery bed soil drenching with EMB 1.9 % WP at 285.0 g a.i./ha before or after sowing, induced high reduction of the J 2 population in the soil as well as of the number of females per g root (Das et al, 2014).…”

Section: Discussionsupporting

confidence: 86%

“…ABM, a blend of avermectins B1 a (<80%) and B1 b (>20%) with identical biological and toxicological properties (Pitterna et al, 2009), has nematicidal eff ects against rootknot and other nematode genera against several crops (Faske and Starr, 2007;Saad et al, 2017). On the other hand, EMB, a second generation avermectin derivative, is being developed for control of insect pests on different vegetable crops worldwide (Jansson and Dybas, 1998).…”

Section: Introductionmentioning

confidence: 99%

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Investigating the in vitro and in vivo nematicidal performance of structurally related macrolides against the root-knot nematode, Meloidogyne incognita

Radwan

Saad

Mesbah

et al. 2019

Hellenic Plant Protection Journal

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Summary Avermectins and spinosyns are structurally related natural products of microbial origin and belong to a new family of macrolides which are active against a vast array of invertebrate pests. In the present study, the effects of four members of macrolides; abamectin (ABM), emamectin benzoate (EMB), spinosad (SPI) and spinetoram (SPIT), on Meloidogyne incognita were investigated under in vitro and in vivo conditions. All compounds reduced egg hatching and led to high mortality of the nematode second-stage juveniles (J2). ABM showed the maximum rate of egg hatching inhibition and J2 mortality while SPIT recorded the minimum. All treatments reduced the number of galls, egg masses, eggs/egg mass in roots and J2 in the soil when compared to the control. Based on the 10 folds of the 24 h-LC50 values of J2 mortality in vitro, EMB and ABM exhibited higher percent reduction in galls (79.68 and 71.45%), egg masses (75.19 and 70.54%), eggs/egg mass (60.49 and 40.91%) and J2 in the soil (90.31 and 86.54%), respectively, compared to SPI and SPIT. Significant increase in tomato shoot height occurred in all biopesticides (10 folds) and SPIT (20 folds). SPI at 10 folds of the 24 h-LC50 values of J2 mortality in vitro, significantly increased root length while ABM at 50 folds and SPIT at 20 folds decreased root length by 5.15% and 5.88%, respectively, compared to the untreated inoculated plants. In all treatments, the dry shoot and root weights increased, compared to the untreated control. Our findings suggest that these macrolides have the ability to regulate nematode population densities and may be an alternative to classical nematicides.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Investigating the in vitro and in vivo nematicidal performance of structurally related macrolides against the root-knot nematode, Meloidogyne incognita

Radwan

Saad

Mesbah

et al. 2019

Hellenic Plant Protection Journal

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“…Many reports showed that abamectin was able to reduce plant-parasitic nematode populations on several crops [10,13,27,35,36]. Our obtained result of the present work was con irmed by El-Nagdi, et al [25].…”

Section: Resultssupporting

confidence: 87%

“…Abamectin is a natural fermentation product of Streptomyces avermitilis. It is a mix of avermactin B1a (80%) and avermactin B1b (20%), which represent a new generation of pesticides that exhibit good ef icacy against phytonematodes [7][8][9][10]. Abamectin applied as seed treatment, soil application and as root dipping against phytonematodes, e.g., Meloidogyne incognita, M. arenaria, M. javenica, T. semipenetrans and Rotylenchulus reniformis.…”

Section: Introductionmentioning

confidence: 99%

Nematicidal effect of abamectin, boron, chitosan, hydrogen peroxide and Bacillus thuringiensis against citrus nematode on Valencia orange trees

El-Saedy¹,

Hammad²,

Allah³

2019

J Plant Sci Phytopathol

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“…According to the present results, fenamiphos was superior with suppression of the developmental parameters of root-knot nematode, M. incognita on banana plants. Mostafa et al (2015) and Saad et al, (2017) found that fenamiphos (40% EC) minimized the incidence of root-knot nematode disease and significantly inhibited the nematode developmental stages in plant and soil as compared to the untreated control.…”

Section: Slope ± Variancementioning

confidence: 99%

Effects of vermicompost, vermicompost tea and a bacterial bioagent against Meloidogyne incognita on banana in Egypt

Awad-Allah¹,

Khalil²

2019

PJN

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The nematicidal potential of vermicompost (VC), vermicompost tea (VCT) and the bacterial bioagent Nemaless ® was evaluated against Meloidogyne incognita infecting banana (Musa acuminata) cv. "Grand Nain" as compared to the nematicide fenamiphos 40% EC under laboratory and field conditions. Experiments were carried-out during two successive seasons (2016 and 2017). Results of the laboratory tests showed that the toxicity of VCT and Nemaless ® to M. incognita second-stage juveniles (J 2 ) was increased as their concentrations and exposure times were increased. The LC 50 of VCT ranged from 30.86 × 10 3 to 83.77 × 10 5 mg/l, while the LC 50 of Nemaless ® ranged from 2.69 × 10 8 to 3.17 × 10 8 cell/ml. Results from the field experiments revealed that all of the tested treatments greatly suppressed (P ≤ 0.05) the numbers of galls, egg-masses and nematode final populations. The most potent materials in reducing the numbers of M. incognita in banana soil, in a descending order, were: fenamiphos, Nemaless ® , vermicompost and vermicompost tea (VCT).

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Evaluation of some non-fumigant nematicides and the biocide avermactin for managing Meloidogyne incognita in tomatoes

Cited by 19 publications

References 0 publications

Investigating the in vitro and in vivo nematicidal performance of structurally related macrolides against the root-knot nematode, Meloidogyne incognita

Investigating the in vitro and in vivo nematicidal performance of structurally related macrolides against the root-knot nematode, Meloidogyne incognita

Nematicidal effect of abamectin, boron, chitosan, hydrogen peroxide and Bacillus thuringiensis against citrus nematode on Valencia orange trees

Effects of vermicompost, vermicompost tea and a bacterial bioagent against Meloidogyne incognita on banana in Egypt

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