Rhizoctonia theobromae(ONCOTH)
Distribution details in Brazil
Current pest situation evaluated by EPPO on the basis of information dated
2025: Present, few occurrences
First recorded in: 2023
Pest status declared by NPPO: Present, not widely distributed and under official control (2025-07)
First recorded in: 2023
Pest status declared by NPPO: Present, not widely distributed and under official control (2025-07)
EPPO Reporting Service (2025/048) : emerging disease in cassava. Reported in Amapa.
EPPO Reporting Service (2025/206) : first recorded in Pará on cassava.
EPPO Reporting Service (2025/206) : first recorded in Pará on cassava.
* Alves Santos de Oliveira S, Sheat S, Margaria P, Lopes Lima A, de Araújo dos Santos J, Rocha HS, Fleck da Silveira H, Ramos de Jesus C, Winter S (2026) Association of Rhizoctonia theobromae with cassava witches’ broom outbreak in Brazil and genetic relatedness to Southeast Asian isolates. Frontiers in Plant Science 17, 1799146. https://doi.org/10.3389/fpls.2026.1799146
* EMBRAPA
- Vassoura de bruxa da mandioca (with a map) https://www.embrapa.br/vassoura-de-bruxa-da-mandioca
-2024-08-15 Nota Técnica 10729769. Notificação de Nova Doença - ‘Vassoura de Bruxa’ da mandioca causada por Ceratobasidium theobromae (Rhizoctonia theobromae) no Brasil. 5pp. https://www.embrapa.br/en/busca-de-noticias/-/noticia/91690274/embrapa-identifica-primeiro-caso-de-vassoura-de-bruxa-da-mandioca-no-brasil
- 2025-07-07 Embrapa e ministérios montam estratégias para enfrentar vassoura-de-bruxa da mandioca no Amapá e Pará. https://www.embrapa.br/busca-de-noticias/-/noticia/101704837/embrapa-e-ministerios-montam-estrategias-para-enfrentar-vassoura-de-bruxa-da-mandioca-no-amapa-e-para
* EMBRAPA
- Vassoura de bruxa da mandioca (with a map) https://www.embrapa.br/vassoura-de-bruxa-da-mandioca
-2024-08-15 Nota Técnica 10729769. Notificação de Nova Doença - ‘Vassoura de Bruxa’ da mandioca causada por Ceratobasidium theobromae (Rhizoctonia theobromae) no Brasil. 5pp. https://www.embrapa.br/en/busca-de-noticias/-/noticia/91690274/embrapa-identifica-primeiro-caso-de-vassoura-de-bruxa-da-mandioca-no-brasil
- 2025-07-07 Embrapa e ministérios montam estratégias para enfrentar vassoura-de-bruxa da mandioca no Amapá e Pará. https://www.embrapa.br/busca-de-noticias/-/noticia/101704837/embrapa-e-ministerios-montam-estrategias-para-enfrentar-vassoura-de-bruxa-da-mandioca-no-amapa-e-para
| Country | State | Status | |
|---|---|---|---|
| French Guiana | Present, no details | ||
| Suriname | Present, no details |