Doenças do álamo

Mio, Louise Larissa May De; Amorim, Lílian

doi:10.5380/rf.v30i12.2323

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The species is also reported as present in Argentina (EPPO, 2018), Brazil (de Mio andAmorim, 2000;Santos et al, 2010) and Mexico (Romo Lozano et al, 1992). Given these reports, there is uncertainty about whether the pathogen could be present in other South American countries.…”

Section: Pest Distribution Outside the Eumentioning

confidence: 91%

Pest categorisation of Sphaerulina musiva

Jeger¹,

Bragard²,

Caffier³

et al. 2018

EFS2

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Section: Pest Distribution Outside the Eumentioning

confidence: 91%

Pest categorisation of Sphaerulina musiva

Jeger¹,

Bragard²,

Caffier³

et al. 2018

EFS2

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“…Poplar clones are extremely demanding in cultural and phytosanitary treatments AMORIM, 2000), which increases the production costs of the planted forests. The main diseases of this crop are rust (Melampsora medusae Thuem.)…”

Section: Introductionmentioning

confidence: 99%

AGRESSIVENESS AND BIOCONTROL OF Rosellinia bunodes IN POPLAR

Kleina

Santos

Duarte

et al. 2019

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The Rosellinia root rot, caused by the fungus Rosellinia bunodes, has gained prominence due to the incidence in commercial plantations of forest species, such as poplar. Due to the absence of phytosanitary products registered for this crop in Brazil, cultural control, often inefficient, becomes the only option for the control of this disease. In the search for solutions to this problem, biological control meets the needs of implementing a more sustainable system. The objective of this work was to evaluate the aggressiveness of R. bunodes isolates in poplar and the antagonistic capacity in vitro and in vivo of Trichoderma spp. in control of this phytopathogen. For the aggressiveness test, healthy poplar seedlings were planted on substrate inoculated with nine R. bunodes isolates. The tests of antagonism in direct confrontation, production of volatile and non-volatile compounds were performed among 30 isolates of Trichoderma spp. and R. bunodes isolate R2. In the in vivo test, the treatments consisted of different planting dates of the seedlings infested with the antagonist fungus and the phytopathogen. R. bunodes isolates R2, R3, R3A, R6 and R8 were more aggressive than the others. From 30 isolates of Trichoderma spp., 12 may be considered as potential biocontrol agents due to the high competitive capacity and suppression of mycelial growth of R. bunodes. The longer exposure time between the pathogen and the antagonist on the substrate decreased the incidence of Rosellinia root rot in poplar.

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“…ex Marsh.) is a forest species originating from the Eastern region of North America and stands out for having a light and resistant wood, which adds high economic value in the manufacture of matchsticks May-De Mio and Amorim, 2005) and the furniture industry. In Brazil, commercial plantations are located in the region of Vale do Iguaçu (states of Paraná and Santa Catarina) (May-De Mio and Amorim, 2005), covering 4,216 hectares (Indústria Brasileira de Árvores, 2017).…”

Section: Introductionmentioning

confidence: 99%

PHYSIOLOGICAL CHARACTERIZATION OF Rosellinia bunodes AND SYMPTOMATOLOGY OF Rosellinia ROOT ROT IN POPLAR SEEDLINGS

et al. 2018

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Poplar (Populus deltoides) is a forest species that has several phytosanitary problems, such as leaf spots, rusts and root rots. Since 2010, the death of poplar trees has been observed in commercial plantations in the state of Paraná, Brazil, caused by the fungus Rosellinia bunodes. Due to the lack of information about this pathosystem, the aim of this work was to carry out the physiological characterization of R. bunodes isolates collected from P. deltoides and the symptomatological characterization of Rosellinia root rot in the same host. Experiments were conducted at Embrapa Florestas, located in Colombo (PR), Brazil. The mycelial growth of nine R. bunodes isolates was evaluated in four culture media (potato-dextrose-agar, V8-agar, carrot-agar and water-agar) and seven different incubation temperatures (8, 12, 16, 20 24, 28 and 32 °C). The symptomatological characterization of Rosellinia root rot was performed on six-month-old poplar seedlings. The most favorable conditions for mycelial growth of R. bunodes were observed in potato dextrose agar (PDA) at 24 °C. The symptoms and signs of the disease internally in the stem showed up at 7 days after inoculation (DAI); however, chlorosis and wilting were observed only at 14 DAI. Sexual and asexual reproductive structures of R. bunodes were not observed on inoculated plants.

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Doenças do álamo

Cited by 5 publications

References 10 publications

Pest categorisation of Sphaerulina musiva

Pest categorisation of Sphaerulina musiva

AGRESSIVENESS AND BIOCONTROL OF Rosellinia bunodes IN POPLAR

PHYSIOLOGICAL CHARACTERIZATION OF Rosellinia bunodes AND SYMPTOMATOLOGY OF Rosellinia ROOT ROT IN POPLAR SEEDLINGS

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