Name: Guignardia citricarpa Kiely. Anamorph: Phyllosticta citricarpa (McAlpine) Van der Aa (macroconidial state). Synonyms: Phoma citricarpa McAlpine. Citrus black spot is a fungal disease caused by Guignardia citricarpa. This Ascomycete fungus affects citrus plants throughout subtropical climates, causing a. Guignardia citricarpa Kiely, Proceedings of the Linnean Society of New South Wales () [MB#].

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However, now that black spot is well established citricarpq areas of southern South America, fruit losses may periodically be severe. Journal of the South China Agricultural College, 4 2: Host-Plant Resistance Sour orange Citrus aurantium is one of the few species of citrus that is resistant to black spot.

Continuing to use www. Studies in Mycologia, 5: However, treatment with guazatine or imazalil, hot water or waxing decreased the viability of the pathogen in black spot lesions Korf et al. Simple search Basic search Advanced search Search type specimens Search thesaurus Search bibliography.

There are three possible methods to hasten this decomposition. The telemorph was described in and designated Guignardia citricarpa Kiely Kiely, Universita di Catania, Italy. The distribution in this summary table is based on all the information citrixarpa. Cultural and morphological comparison on Phoma citricarpa and P.


Close Find out more. Once ascospores are mature, rainfall or irrigation may trigger their release. Best applied with petroleum oil.

Pests and diseases of citrus fruits and treatments recommended in Sofala and Tete. Knowledge Bank home Change location. They create raised cracks on the fruit surface that can be difficult to see later in the season.

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The effects of fungicides and fertilization on the control of black spot of citrus Guignardia guignardja. Polymerase chain reaction PCR can be used to diagnose G.

Black spot on citrus-Ghana. Google cookies and technologies Google Analytics: Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Guignardia citricarpa (citrus black spot)

Bergamin Filho, and B. Current name Classification Type name Basionym Obligate or homotypic synonyms Anamorph synonyms Teleomorph synonyms Facultative or heterotypic synonyms Type of organism. Volume I, These primers are quite reliable for cittricarpa of the two species when used with pure cultures of the fungus.

A review of current information.

citrus black spot Guignardia citricarpa Kiely

Any condition s All condition s. The importance of dispersal by fruit has been questioned since the fungus produces only water-dispersed conidia on symptomatic fruit Kotze, Leaf symptoms are only noticeable on highly susceptible citrus plants; lemons in particular. Most of the losses in Australia and South Africa have been due to the external blemishes which make fruit unsuitable for the citrcarpa market.


A mancha preta dos frutos cftricos causada por Phoma citricarpa. The information is depersonalized and is displayed as numbers, meaning it cannot be traced back to individuals. This Add-on is available at http: However, the fungus colonizes citricarps leaf as a saprophyte after the leaf dies and eventually forms pycnidia or pseudothecia. European and Mediterranean Plant Protection Organization. Any trees that are guignardka with citrus black spot should be removed from the grove and disposed of.

citricwrpa Preliminary studies on Guignardia citricarpa n. Genetic modification holds more promise for developing resistant cultivars, but progress is likely to be slow using these methods.

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