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1. Padil Species Factsheet Scientific Name: Common Name Image Library Partners for Australian Biosecurity Image Library

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1. Padil Species Factsheet Scientific Name: Common Name Image Library Partners for Australian Biosecurity Image Library 1. PaDIL Species Factsheet Scientific Name: Asperisporium caricae (Speg.) Maubl (Anamorphic fungi - Ascomycetes) Common Name Asperisporium Black Spot of Papaya Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/136591 Image Library Australian Biosecurity Live link: http://www.padil.gov.au/pests-and-diseases/ Partners for Australian Biosecurity image library Department of Agriculture, Water and the Environment https://www.awe.gov.au/ Department of Primary Industries and Regional Development, Western Australia https://dpird.wa.gov.au/ Plant Health Australia https://www.planthealthaustralia.com.au/ Museums Victoria https://museumsvictoria.com.au/ 2. Species Information 2.1. Details Specimen Contact: Dr Jose Liberato - [email protected] Author: Liberato JR, McTaggart AR & Shivas RG Citation: Liberato JR, McTaggart AR & Shivas RG (2006) Asperisporium Black Spot of Papaya (Asperisporium caricae)Updated on 10/9/2012 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/136591 2.3. Facets Status: Exotic Species Occurrence in Australia Group: Fungi Commodity Overview: Horticulture Commodity Type: Fresh Fruit Distribution: USA and Canada, Central and South America, Africa, South and South-East Asia, Australasian - Oceanian 2.4. Other Names Cercospora caricae Speg. Epiclinium cumminsii Massee Fusicladium caricae (Speg.) Sacc. Pucciniopsis caricae (Speg.) Höhn. Pucciniopsis caricae Earle Scolicotrichum caricae Ellis & Everh. 2.5. Diagnostic Notes The fungus: Sporodochia hypophyllous, dark blackish brown to black. Stroma well-developed, erumpent. Conidiophores closely packed together and covering the surface of the stroma, usually unbranched, hyaline to olivaceous brown, with several prominent conidial scars at the apex, up to 45 x 6–9 µm. Conidia solitary, ellipsoidal, pyriform or clavate, 1-septate, hyaline to mid pale brown, verrucose, 14–26 x 7–10 µm (Maublanc 1913, Ellis 1970, Ellis & Holliday 1972). Symptoms: Black pustules on the abaxial surface of the leaf are characteristic of this disease. The first symptoms are scattered small spots, visible on both leaf surfaces. On the upper surface, the lesions are rounded or somewhat angular, 1-4 mm in diameter, pale yellow, with dark margins. Later the lesions become necrotic and whitish. On the lower surface, the lesions are covered with masses of fungal spores which appear as dark dots. The pustules can cover the whole lesion (Maublanc, 1913). The disease is more intense on the lower leaves. Sometimes the leaf lesions can cover an extensive area, causing yellowish and premature drop. The pustules also occur on fruit. The lesions are superficial and do not enter the flesh of the fruit. The damage to fruit is entirely cosmetic. The black lesions can appear white if hyperparasitized by fungi such as _Cephalosporium_, _Rhinotrichum gossypinum_ and _Verticillium_. 2.6. References Conover RA. 1978. Corynespora leaf spot, a disease of Florida papayas. Proceedings of the Florida State Horticultural Society 91:184-185. Ellis MB (1970) Dematiaceous hyphomycetes. (Commonwealth Mycological Intitute: Kew, England). Ellis MB & Holliday P. 1972. _Asperisporium caricae_. Kew, Commonwealth Mycological Institute, 1p. (Descriptions of pathogenic fungi and bacteria n0 347). Liberato JR & Zambolim L. 2002. Nematodes, bacterial and fungal disease of papaya. In: Zambolim L; Vale FXR; Monteiro AJA & Costa H (eds.). Fruit diseases. v.2, Viçosa, MG. p.1023-1170. (In Portuguese). Maublanc A. 1913. Uma moléstia do mamoeiro (Carica Papaya L.). Boletim do Ministério da Agricultura Indústria e Commércio 2: 126-130. Persley DM & Ploetz RC. 2003. Diseases of papaya. In: Ploetz, R.C. (Ed.) Diseases of tropical fruit crop. Wallingford, CABI Publishing, p. 373-412. 3. Diagnostic Images Fruit symptoms Fruit symptoms Host Symptoms: Liberato & Zambolim Host Symptoms: Dr Jose Liberato DPI&F (2002) Leaf symptoms Leaf symptoms Host Symptoms: Dr Jose Liberato DPI&F Host Symptoms: Dr Jose Liberato DPI&F Lesions on the adaxial leaf surface Pustules on the adaxial leaf surface Host Symptoms: Dr Jose Liberato DPI&F Host Symptoms: Dr Jose Liberato DPI&F Pustules on the leaf Pustules on the leaf Host Symptoms: Dr Jose Liberato DPI&F Host Symptoms: Dr Jose Liberato DPI&F Pustules on the leaf Lesion on the abaxial leaf surface Host Symptoms: Dr Jose Liberato DPI&F Host Symptoms: Dr Jose Liberato DPI&F Asperisporium caricae. Conidiophores and Asperisporium caricae. Conidiophores and conidium. conidium. LM: Alistair McTaggart DPI&F LM: Alistair McTaggart DPI&F Asperisporium caricae. Conidiophores. Asperisporium caricae. Conidiophores. LM: Alistair McTaggart DPI&F LM: Alistair McTaggart DPI&F Conidiophores and conidia Conidiophores and conidia Spores in LM: Dr Jose Liberato DPI&F Spores in LM: Dr Jose Liberato DPI&F Conidiophores and conidia Conidiophores and conidia Spores in LM: Dr Jose Liberato DPI&F Spores in LM: Dr Jose Liberato DPI&F Conidia Conidia Spores in LM: Dr Jose Liberato DPI&F Spores in LM: Dr Jose Liberato DPI&F Results Generated: Saturday, October 2, 2021 .
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