Biological control of <i>Pratylenchus brachyurus</i> in soya bean crops

Dias‐Arieira, Cláudia Regina; Araújo, Fernando Godinho de; Kaneko, Lécio; Santiago, Débora Cristina

doi:10.1111/jph.12755

Cited by 14 publications

(15 citation statements)

References 23 publications

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“…The susceptibility of soybean genotypes to M. arenaria and M. morocciensis is an important indication of the need for other control measures for this plant parasite, since these species are widespread in cultivated areas. Although several management strategies are applied to increase crop yield, none have been fully effective in keeping populations below the level of economic loss (DIAS-ARIEIRA et al 2018). Research on genetic resistance is important from the perspective of controlling plant-parasitic nematodes since the responses to these pathogens are reproduced in these hosts.…”

Section: Resultsmentioning

confidence: 99%

Host status of soybean genotypes to Meloidogyne arenaria and Meloidogyne morocciensis

Nora¹,

Balardin²,

Kaspary

et al. 2020

Rev. Ciênc. Agrovet.

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Soybean crop productivity is limited by several biotic factors, particularly plant-parasitic nematodes. Several species have been reported to cause crop damage, especially those of the genus Meloidogyne. Therefore, the aim of this study was to evaluate, the reaction of 28 soybean genotypes to Meloidogyne arenaria and M. morocciensis in a greenhouse. The soybean genotypes were the same for experiments with different species of plant-parasitic nematodes and were individually inoculated with 5,000 eggs + second-stage juveniles (J2) of Meloidogyne and kept in a greenhouse. After 60 days of inoculation, the roots of each plant were assessed for the number of galls, final population, and reproduction factor (RF = final population/initial population). The averages of the different variables were then compared to each other by the Scott-Knott cluster analysis at a significance level of 5%. All of the soybean genotypes in the study were susceptible to both nematodes, with RF ranging from 3.5 to 24.1 for M. arenaria and 5.3 to 37.5 for M. morocciensis.

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Section: Resultsmentioning

confidence: 99%

Host status of soybean genotypes to Meloidogyne arenaria and Meloidogyne morocciensis

Nora¹,

Balardin²,

Kaspary

et al. 2020

Rev. Ciênc. Agrovet.

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“…These species can endophytically associate with plants, colonize the root tissues, mainly the rhizoplane, and help managing nematodes in different ways, namely, by producing toxic substances that compromise the nematode development or the location of the host, by promoting plant growth and by activating defense mechanisms in plants (Machado et al, 2012;Xiang et al, 2017). Besides bacteria, fungi such as Pochonia chlamydosporia (Goddard) Zare and Gams and Purpureocillium lilacinum (Thom) Luangsa-ard et al have also been studied as important agents in the biological control of nematodes, acting in the reduction of juveniles and eggs (Silva et al, 2017;Dias-Arieira et al, 2018). In addition, fungi belonging to genus Trichoderma can reduce the number of nematodes through different action mechanisms such as direct parasitism, changes in the rhizosphere, enzyme activity and plant-resistance induction (Izuogu and Abiri, 2015;Zhang et al, 2015;Kath 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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“…In protected environment conditions, Dias-Arieira et al (2018) observed the effect of T. harzianum and P. lilacinum in the reduction of populations of P. brachyurus in soybean, where these fungi were potentiated when used together with an organomineral fertilizer. In the same study, the authors saw that the use of P. lilacinum + T. harzianum can reduce the number of P. brachyurus per 10 g of root by up to 61.2% in soy at 40 DAS and 47.2% at 60 DAS, under field conditions.…”

Section: Resultsmentioning

confidence: 99%

Biological Nematicides Associated With Poultry Litter in the Control of Nematodes in Soybean and Second Corn Crop

et al. 2021

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Alternative management measures have been used to reduce nematode population levels in affected areas. In this perspective, the objective was to evaluate the efficiency of nematicides based on fungus and bacterium, associated with poultry litter applied via ground in the management of Pratylenchus brachyurus and Heterodera glycines in soybean and corn crops in succession. The experiment was conducted in the 2018/19 growing season in the municipality of Ipameri– GO (-17°34’55.58”S−48°12’02.35”O) in naturally infested field, arranged in a randomized block design, with 10 treatments and 4 replicates, being: T1- Witness/ control, T2- Poultry litter, T3- P. lilacinum + T. harzianum, T4- B. subtilis + B. licheniformis, T5- P. chlamydosporia, T6- Abamectina, T7- P. lilacinum + T. harzianum + Poultry litter, T8- B. subtilis + B. licheniformis + Poultry litter, T9- P. chlamydosporia + Poultry litter, T10- Abamectina + Poultry litter. The poultry litter was added in the soil 10 days before planting. The plots were composed of 6 lines of 6 m, with a spacing of 0.5 m. In the soybean crop at 45 and 90 days after sowing (DAS), the fresh weight of the roots (MFR), nematological variables and productivity were evaluated. In corn, only nematological variables were evaluated at 60 DAS. The treatments using P. lilacinum + T. harzianum and B. subtillis + B. licheniformes increased the MFR and reduced the number of P. brachyurus and H. glycines at the root. P. chlamydosporia associated with poultry litter increased in productivity in soybean plants.

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Biological control of Pratylenchus brachyurus in soya bean crops

Cited by 14 publications

References 23 publications

Host status of soybean genotypes to Meloidogyne arenaria and Meloidogyne morocciensis

Host status of soybean genotypes to Meloidogyne arenaria and Meloidogyne morocciensis

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

Biological Nematicides Associated With Poultry Litter in the Control of Nematodes in Soybean and Second Corn Crop

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