Suscetibilidade De Milho, Soja E Capim Amargoso Ao Nematoide Das Lesões Radiculares

Matias, João Paulo; Silva, André Augusto Pazinato da; Helvig, Enelise Osco; Maciel, Cleber Daniel de Góes; Dias‐Arieira, Cláudia Regina; Karam, D.

doi:10.18512/1980-6477/rbms.v17n2p353-358

Cited by 10 publications

(9 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…in maize roots was observed for herbicide management systems compared to weeding and no weeding controls, in the order of 55.4% and 4.8%, respectively (Table 6). This result highlights the importance of the sourgrass as a host of Pratylenchus spp., even in plants submitted to the management systems with the studied herbicide associations and corroborates previous research that showed the sourgrass susceptibility to the lesion nematode (Bellé et al, 2015;Matias et al, 2018), which may be similar to that observed for maize (Matias et al, 2018). The nematode population found in the maize rhizosphere was very low and uniform, with no difference between treatments or contributing significantly to the total population (data not shown).…”

Section: Burndownsupporting

confidence: 90%

“…Despite these advantages, the system has an important limitation, which is the common susceptibility of the two crops to some nematodes, especially Pratylenchus brachyurus, whose reproduction factor can be quite high in soybean and maize (Inomoto, 2011;Favoreto et al, 2019), and in numerous grass species, forage or not, grown in crop rotation, including plants of the genus Panicum and Urochloa (Inomoto et al, 2007;Dias-Arieira et al, 2009;Queiróz et al, 2014), and sorghum and millet (Inomoto et al, 2006). Added to these, the susceptibility to common weeds in the areas of soybean-maize succession, with emphasis on the sourgrass (Digitaria insularis) (Bellé et al, 2015;Matias et al, 2018), considered one of the main invaders in the soybean-maize system, due to resistance to herbicides (Pereira et al, 2017;Costa et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Digitaria insularis Management and Nematode Dynamics in Off-season Maize

Kashiwaqui¹,

Dias‐Arieira²,

Matias³

et al. 2020

JAS

Self Cite

View full text Add to dashboard Cite

Maize stands out as one of the most important crops in succession to soybean in tropic countries. However, the susceptibility of both crops to nematodes, can cause a continuous increase in the nematode population, especially in areas where there is the occurrence of weeds susceptible to the parasites. Thus, the objective was to evaluate the nematodes dynamics in a growing area with off-season maize under chemical weed management. The experiment was installed at Tuneiras do Oeste County, Brazil, designed in randomized blocks, with seven treatments and five replications, constituted by sourgrass (Digitaria insularis) management systems with glyphosate associated to herbicides inhibitors of the enzyme acetyl-CoA carboxylase (ACCase) and auxin-mimetic, and complement with glyphosate + atrazine + tembotrione in post-emergence. The effect of treatments on Pratylenchus spp. population was observed in roots and soil rhizosphere soil of D. insularis and in maize roots. Glyphosate application followed by glyphosate + atrazine was inefficient in controlling sourgrass. Management system with glyphosate + clethodim + 2.4-D followed by glyphosate + atrazine + tembotrione reduced the Pratylenchus spp. population in sourgrass, but any management system repeated this effect in maize. Management systems of D. insularis with associations of glyphosate + clethodim; glyphosate + clethodim + 2.4-D and glyphosate + fenoxaprop-p-ethyl, all followed by glyphosate + atrazine + tembotrione, showed excellent control level of sourgrass without affecting plant height, grain and rank numbers and grain yield. It is concluded that the management system using herbicides association controlled sourgrass and may interferer on Pratylenchus spp. population.

show abstract

Section: Burndownsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Digitaria insularis Management and Nematode Dynamics in Off-season Maize

Kashiwaqui¹,

Dias‐Arieira²,

Matias³

et al. 2020

JAS

Self Cite

View full text Add to dashboard Cite

show abstract

“…(2017a) reported that D. insularis , S. rhombifolia and B. pilosa were susceptible to M. incognita (RF of 2.0, 6.4 and 6.7, respectively). In some tropical countries, D. insularis , a weed susceptible to P. brachyurus , is considered difficult to control (Matias et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Weed hosts of Meloidogyne spp. and the effect of aqueous weed extracts on egg hatching

et al. 2019

View full text Add to dashboard Cite

Summary Weeds have a great economic impact on agricultural production because they compete with crops for resources and are alternative hosts for pests, microbial pathogens and plant‐parasitic nematodes. This study aimed to investigate the susceptibility of weeds to the root‐knot nematodes Meloidogyne javanica and Meloidogyne incognita and assess the effect of aqueous weed extracts on M. javanica egg hatching. Four experiments were conducted, two for each nematode species. Weeds were inoculated with 2000 nematode eggs and grown for 60 days under greenhouse conditions. Soyabean cv. Monsoy 7110 was used as control. The weeds Ipomoea grandifolia, Solanum americanum, Digitaria horizontalis, Amaranthus deflexus, Sorghum halepense and Commelina benghalensis were susceptible to M. javanica and M. incognita in at least one experiment (reproduction factor, RF >1). Crotalaria juncea and Eleusine indica were susceptible to M. incognita in one experiment, and Digitaria insularis, Sida rhombifolia, Bidens pilosa, Urochloa decumbens, Crotalaria breviflora, Cenchrus echinatus, Crotalaria ochroleuca and Crotalaria spectabilis were immune or resistant (RF <1 or RF = 0). Alternanthera tenella, C. juncea, S. rhombifolia, C. ochroleuca, C. spectabilis, C. breviflora, B. pilosa, E. indica, U. decumbens and C. echinatus were resistant or immune to M. javanica (RF <1 or RF = 0). Compared with the control (water), all weed extracts reduced M. javanica egg hatch. Our results highlight the importance of weed control in agricultural systems, as nematodes can survive and multiply in weed roots during the off‐season. Weed leaves and shoots, however, may be an interesting source of compounds with nematicidal activity.

show abstract

“…However, in view of the polyphagous nature of M. javanica, it is important to bear in mind that some plant species may be suitable hosts for plant-parasitic nematodes. Another potential problem is that rotation crops may act as weeds for the next crop, serving as a nematode reservoir in the off-season (Braz et al, 2016;Matias et al, 2018;Favoreto et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Application of herbicides in green cover crops to reduce Meloidogyne javanica inoculum in soybean plants

Yumi Futigami,

Calandrelli,

Dias-Arieira

2023

Agron. Colomb.

View full text Add to dashboard Cite

Nematodes are among the main plant parasites affecting Brazilian agriculture. Management practices involving the use of antagonistic or non-host plants are crucial for combating Meloidogyne javanica populations in the country. However, there is still limited information on the effects of herbicides on nematode populations. The aim of this research was to evaluate the impact of herbicides applied to crops on M. javanica populations in soybean and to examine the direct effect of herbicide products on the hatching of nematode juveniles. We conducted greenhouse and in vitro experiments. In the greenhouse experiment, soybean plants were grown in pots with sterile substrate, and a soybean seed was inoculated with 2000 nematodes per plant. The plants grew for 60 d, after which they were cut, and the following cover crops were planted: Crotalaria spectabilis, pigeon pea (Cajanus cajan), Stylosanthes, and buckwheat (Fagopyrum esculentum) for 60 d. These cover crops were desiccated with one of the following three herbicides: fomesafen, chlorimuron, or bentazone. Subsequently, soybeans were replanted and cultivated for additional 60 d. In vitro assays were used to determine the hatching percentage of M. javanica eggs exposed to herbicides. Both tests were repeated at different times of the year (Trials 1 and 2). Meloidogyne javanica reproduction was higher on soybean crops grown when buckwheat was a cover crop. Herbicide application reduced total nematode numbers in soybean grown in succession to buckwheat compared with the untreated control. The vegetative development of soybean crops was negatively influenced by herbicide treatment of cover crops, especially with the use of chlorimuron. Bentazone and fomesafen did not affect nematode hatching in vitro.

show abstract

Suscetibilidade De Milho, Soja E Capim Amargoso Ao Nematoide Das Lesões Radiculares

Cited by 10 publications

References 1 publication

Digitaria insularis Management and Nematode Dynamics in Off-season Maize

Digitaria insularis Management and Nematode Dynamics in Off-season Maize

Weed hosts of Meloidogyne spp. and the effect of aqueous weed extracts on egg hatching

Application of herbicides in green cover crops to reduce Meloidogyne javanica inoculum in soybean plants

Contact Info

Product

Resources

About