Biocontrol agents in the management of Meloidogyne incognita in tomato

Silva, Juliana de Oliveira; Santana, Marcus Vinícius; Freire, Leonardo Levorato; Ferreira, Bruno da Silva; Rocha, Mara Rúbia da

doi:10.1590/0103-8478cr20161053

Cited by 22 publications

(12 citation statements)

References 15 publications

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“…microorganisms in the biological control of nematodes has been increasingly prioritized, since it is an effective measure capable of generating benefits to the crop without causing environmental impacts. Fungi and bacteria stand out among the most often used microorganisms, since they can control several nematode species in different crops (Alves et al, 2011;Kath et al, 2017;Silva et al, 2017).…”

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confidence: 99%

Biological products in association with organic matter to control Meloidogyne javanica in tomato

Hernandes¹,

Brito²,

Lopes³

et al. 2020

Europ.J.Hortic.Sci

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Root-knot nematodes are responsible for significant tomato production losses and require taking integrated control measures. The aim of the current study is to evaluate the association between biological control and organic matter sources to Meloidogyne javanica control in tomato. In order to do so, two experiments were carried out under greenhouse conditions, in two different periods. Tomato plants were transplanted to pots and inoculated with 2,000 M. javanica eggs. Plants were treated with either Nem-Out™ or Compost-Aid ® biological control products, which were individually applied or in association with organic wastes such as poultry litter, filter cake, rice hull and coffee hull. Nematological and vegetative parameters were evaluated 60 days later. The treatments, except for Nem-Out™ + poultry litter and Compost-Aid ® + poultry litter, were efficient in reducing the number of galls. Treatment with Nem-Out™ + filter cake presented 83% gall reduction, whereas Compost-Aid ® + filter cake presented 98.5% reduction. The associations between Nem-Out™ + poultry litter and Compost-Aid ® + poultry litter did reduce the number of nematodes g -1 of root. Reduction in this parameter were observed for all others treatments, mainly when there was association between biological control (both, Nem-Out™ and Compost-Aid ® ) and organic wastes; the treatment with Nem-Out™ + coffee hull reduced by 96% the number of nematodes g -1 of root, whereas the one with Compost-Aid ® + filter cake reduced it by 97%. Most of the treatments have positively influenced the vegetative variables in comparison to the inoculated control.

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mentioning

confidence: 99%

Biological products in association with organic matter to control Meloidogyne javanica in tomato

Hernandes¹,

Brito²,

Lopes³

et al. 2020

Europ.J.Hortic.Sci

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“…The presence of fungus Trichoderma likely contributed to the results, since many species and isolates of this fungus are efficient to nematode biological control in many pathosystems, including T. longibrachiatum. It was the biocontrol agent against M. javanica and M. incognita in tomato plants (Al-Shammari et al, 2013;Silva et al, 2017), and Heterodera avenae Wollenweber in wheat (Zhang et al, , 2017. Although the action-mechanism used by genus Trichoderma acting in nematode management is not completely elucidated, but some authors report the direct parasitism of eggs and juveniles (Suárez et al, 2004;Al-Shammari et al, 2013).…”

Section: Figure 1amentioning

confidence: 99%

Biological Control Associated With Plant Nutrition for Meloidogyne javanica and Pratylenchus brachyurus Management in Soybean

Lopes¹,

Toninato²,

Soares³

et al. 2019

JAS

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Meloidogyne javanica and Pratylenchus brachyurus stand out among the main nematodes in soybean crops. Research on integrated management are often conducted, due to the low efficiency of the main control methods when they are applied alone. Thus, the aim of the present study was to assess the potential of biological control and plant nutrition products to control these nematodes in soybean. The effect of each product alone on nematode hatching and mortality was also assessed. A greenhouse experiment was also carried out, evaluating five doses of the product for biological control based on Bacillus and Trichoderma, with and without the presence of the product for nutrition, inoculated with 2000 eggs and juveniles for the gall nematode or 1000 specimens for the nematode lesions. After 30 days of multiplication, the aerial part was removed and the soil was revolved to receive the new sowing of the soybean with the respective treatments mentioned above. After 60 days, the experiments were evaluated for nematological parameters. Both products reduced hatching and increased nematode mortality. Treatments with biological control were efficient in reducing M. javanica and P. brachyurus, mainly when applied at doses close to 5 and 8 kg ha-1, respectively. The nutrition product negatively influences the biological control.

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“…Bacillus species interrupt the nematode life cycle through the production of toxic metabolites that restrict their mobility, prevent juvenile hatching and penetration into plant roots [25]. Some authors have demonstrated reduction of the M. incognita population in tomato inoculated with Bacillus species [26], others have observed that metabolites produced by B. subtilis trigger hypersensitivity reactions in plant cells and affect oviposition, preventing nematode females from obtaining sufficient energy to produce eggs [27].…”

Section: Evaluation Of Different Addition Times Of the Liquid Bacillumentioning

confidence: 99%

Liquid Bacillus subtilis Formulation in Rice for the Control of Meloidogyne javanica and Lettuce Improvement

Lopes

Ribeiro

Xavier

et al. 2019

JEAI

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Aim: To develop a liquid formulation based on Bacillus subtilis-34 using rice to evaluate the shelf life under refrigerated and room conditions and to evaluate the effect of different addition times of the formulation on the control of Meloidogyne javanica and growth of lettuce plants. Statistical Design: The design was completely randomized, with five treatments and eight replicates. The results were submitted to analysis of variance and the means were compared by the Scott Knott test with 5% error probability. Location and Duration of the Experiment: The experiment was set up during the period from 02/13/2018 to 03/20/2018 in a greenhouse located at the State University of Montes Claros, municipality of Janaúba, MG, Brazil. Methodology: Treatments consisted of drench in the substrate of tubes at 8 and 15 days; drench in the substrate of tubes at 8 and 15 days and in pot at 25 and 35 days; irrigation in pot only at 25 and 35 days after transplanting and 2 controls (Onix® and absolute control). All pots with plants were inoculated with 5000 nematode eggs. At 45 days of transplanting, the following nematological variables were evaluated: number of galls, number of egg mass, number of eggs per gram and reproduction factor, and agronomic variables fresh and dry biomass. Results: Additions in the tube and pot and in the pot only were efficient for the reduction in the reproduction of M. javanica and for the improvement of lettuce plant growth. Conclusion: B. subtilis-34 remains viable until 9 months in formulation stored under the refrigerator and up to 7 months under room conditions.

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Biocontrol agents in the management of Meloidogyne incognita in tomato

Cited by 22 publications

References 15 publications

Biological products in association with organic matter to control Meloidogyne javanica in tomato

Biological products in association with organic matter to control Meloidogyne javanica in tomato

Biological Control Associated With Plant Nutrition for Meloidogyne javanica and Pratylenchus brachyurus Management in Soybean

Liquid Bacillus subtilis Formulation in Rice for the Control of Meloidogyne javanica and Lettuce Improvement

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