Fitopatologia Brasileira (2004) 29, 332-335

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Severina R.O. Lins and Rildo S.B. Coelho (2004)
Ocorrência de doenças em plantas ornamentais tropicais no Estado de Pernambuco
[Occurrence of diseases in ornamental tropical flowers in the State of Pernambuco]
Fitopatologia Brasileira 29 (3), 332-335
Abstract: The climatic conditions in which tropical flowers are grown in Northeast Brazil, related to rainfall, humidity, temperature and cropping density factors, favor disease occurrence that limit and reduce the quality and yield of flowers. In this survey several diseases caused by fungi and nematodes were observed. Among them were the anthracnose (Colletotrichum gloeosporioides) on Heliconia spp, Etlingera elatior, Tapeinochilos ananassae, causing leaf and inflorescence lesions; leaf spots (Bipolaris spp., Cercospora sp., Curvularia lunata, Glomerella cingulata, Guignardia sp and Deighthoniella torulosa) on Heliconia app, Calathea burle - marx and Musa coccinea; roots and rhizomes rots (Rhizoctonia solani and Fusarium oxysporum f. sp. cubense) on E. elatior and Heliconia chartacea cv. Sex Pink. Phytonematoses, caused by Meloidogyne spp., Radopholus sp. and Helicotylenchus sp. make up one of the main disease problems found in ornamental plants in the State of Pernambuco, usually occurring on Alpinia purpurata, E. elatior, Zingiber spectabiles, Heliconia spp. and Musa spp. Alpinia purpurata was found to be the most susceptible to M. incognita. On the other hand, the low incidence of bacterial wilt (Ralstonia solanacearum race 2) in the flower crop areas was associated with eradication carried out by flower producers.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Rhizoctonia solani Heliconia (crop) Brazil (NE)
Colletotrichum gloeosporioides Heliconia (crop) Brazil (NE)
Meloidogyne incognita Ginger (Zingiber) Brazil (NE)
Meloidogyne incognita Heliconia (crop) Brazil (NE)
Curvularia lunata Heliconia (crop) Brazil (NE)
Corynespora torulosa Heliconia (crop) Brazil (NE)