Ocorrência de Pratylenchus brachyurus e Meloidogyne incognita na cultura do algodoeiro no Estado do Mato Grosso

In a survey carried out in the state of Mato Grosso, Brazil, the lesion nematode, Pratylenchus brachyurus, and the root-knot nematode, Meloidogyne incognita, were found, respectively, in 94% and 3.7% of a total of 623 root and soil samples representing 21,793 ha. No visible aboveground symptoms in c...

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Published in:Fitopatologia brasileira 2004-06, Vol.29 (3), p.337-337
Main Authors: Silva, Rosangela A. da(UNIVAG GPA de Agronomia), Serrano, Mirian A. S.(UNIVAG GPA de Agronomia), Gomes, Antônio C.(UNIVAG GPA de Agronomia), Borges, Dárcio C.(UNIVAG GPA de Agronomia), Souza, Anderson A. de(Universidade Federal de Mato Grosso), Asmus, Guilherme L.(Embrapa Agropecuária Oeste), Inomoto, Mário M.(Universidade de São Paulo Escola Superior de Agricultura Luiz de Queiroz Departamento de Entomologia, Fitopatologia e Zoologia Agrícola)
Format: Article
Language:English
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Fitopatologia Brasileira
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Summary:In a survey carried out in the state of Mato Grosso, Brazil, the lesion nematode, Pratylenchus brachyurus, and the root-knot nematode, Meloidogyne incognita, were found, respectively, in 94% and 3.7% of a total of 623 root and soil samples representing 21,793 ha. No visible aboveground symptoms in cotton (Gossypium hirsutum) plants infected by P. brachyurus were observed, except for typical root lesions. In contrast, plants with M. incognita usually exhibited pronounced symptoms of damage. The high frequency (94%) of P. brachyurus was unexpected and is of concern considering the fact that soybean (Glycine max) and corn (Zea mays), are both susceptible to this nematode and are used in crop rotation programs.
ISSN:0100-4158
1678-4677
0100-4158
DOI:10.1590/S0100-41582004000300021