Data/hora: 31/05/2024 04:22:48

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 13/04/1999
Data da última atualização: | 13/04/1999
Autoria: | HUNTER, J. E.; BUDDENHAGEN, I. W.
Afiliação: | University of Haeaii, Hilo, Hawaii and Honolulu, Hawaii.
Título: | Field biology and control of phytophthora parasitica on papaya (Carica papaya) in Hawaii
Ano de publicação: | 1969
Fonte/Imprenta: | Ann. appl. Biol, v.63, p.53-60, 1969
Idioma: | Inglês
Conteúdo: | Epidemic attacks of Phytophthora parasitica on papaya fruits developed during wet, windy weather, but declined rapidly when the weather became dry. During rain, abundant sporangia were liberated from the mycelial mats on infected fruits, but none was trapped in dry air. Collar rots and tree collapse caused by root rot occur irrespective of spray treatments and previous aerial infections on the same tree: they are no more prevalent in b;ocks with abundant aerial infections than in blocks with nome. Basal rots occurred earlier and more frequently on plantings near abandoned diseased fields: they were scattered randomly and appeared before aerial infections. It is suggested that new outbreaks might be initiated from seeds of infected fruit, in which chlamydospores have been found, or from infected nuesery seedlings. Drosophila spp. were found to be occasional vectors of sporangia.
Palavras-Chave: | Difolatan; Diseases; Doencas; Papaya.
Thesagro: | Mamão; Podridão do Pé.
Thesaurus Nal: | captan; fungicides; root rot.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17128-1) - ADD - SP - -- - S11344 -  - S11344 - DIS