It is responsible for the black spot disease on papaya trees. We were unable to confirm which printed issuance was first. Black spot of papaya, asperisporium caricae, on the underside of the leaf. First record of asperisporium caricae causing black spot. It is regarded as an excellent source of ascorbic acid, a good source of carotene, riboflavin and a fair source of. Pdf first record of asperisporium caricae causing black spot of. Selecting blackspot resistant papaya genotypes derived from. General information about asperisporium anamorphic genus 1asprg this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Asperisporium caricae is an ascomycete fungus that is a plant pathogen, found in north and. Jul 11, pdf on sep 10, jose ricardo liberato and others published asperisporium black spot of papaya asperisporium caricae. The blackspot caused by the fungus asperisporium caricae. Sporodochia hypophyllous, dark blackish brown to black. The papaya plant is treelike,usually unbranched and has hollow stems and petioles. Black spot disease of papaya is caused by a fungus called asperisporium caricae.
The fungus causes extensive leaf spots and fruit spots and can render the fruit unsaleable. Survey and prevalence of asperisporium caricae, incitant. Blackspot is the most important leaf disease affecting papaya cultivations, since the infection occurs in the leaves, and it leads to defoliation and loss of the photosynthetic area. Culture of asperisporium caricp, the papaya black spot organism.
Progress 100102 to 093006 outputs a new papaya disease caused by the fungus asperisporium caricae was found first on the island of maui in february 2001, then on the island of hawaii and oahu, and by september on kauai. Evaluation of phosphite applications for severity of papaya black spot asperisporium caricae. Genes is a software package used for data analysis and processing with different biometric models and is essential in genetic studies applied to plant and animal breeding. Cab direct platform is the most thorough and extensive source of reference in the applied life sciences, incorporating the leading bibliographic databases cab abstracts and global health. In order to detect volatile compounds in the antibiosis test, a.
Survey and prevalence of asperisporium caricae, incitant of black leaf spot of papaya and evaluation of certain new fungicidal m. The leaves are palmately lobed, spirally arranged and clustered at the growing tip of the trunk. Pestnet is a free, volunteerrun, service for anyone worldwide who wants rapid help in crop protection. We do not use these to store personal information about you. It affects generally leaves and fruits at any time. Plants treated with pyraclostrobin and difenoconazole had more fruit unaffected by black spot 97% and 99% respectively than plants treated with tebuconazole 51%, mancozeb 20% and the untreated controls 1%. Sporodochia of asperisporium caricae was growing under side of leaf, dark blackish brown to black, stroma welldeveloped, erumpent. The symptoms are scattered small spots, visible on both leaf surfaces. It allows parameter estimation to analyze biological phenomena and is fundamental for the decisionmaking process and predictions of success and viability of selection strategies. Both leaves hind agricultural research and training institute and fruits of papaya can be affected by the black spot caused by asperisporium caricae fig.
Asperisporium caricae information from itis the integrated taxonomic information system itis provides authoritative taxonomic information on asperisporium caricae, as well as other plants, animals, fungi, and microbes of north america and the world. Pdf phylogeographic distribution of asperisporium caricae. Asperisporium caricae is an ascomycete fungus that is a plant pathogen, found in north and south america. However, the damage only covers the surface of the fruit although it also causes a. Widely prevalent plant pathogen status this map is based on data from the widely prevalent fungi project, a collabaration between usda aphis ppq and the american phytopathological society. This fungus causes black spot of papaya disease previously not known to occur in the state. If you wish to receive our response,please use the inquiry form. However, the authors point out that large areas will still be favourable to it, particularly in espirito santo state, a leading. Black spot of papaya caused by asperisporium caricae is reported for the first time in the philippines.
Evaluation of fungicides to control asperisporium caricae. Studies of their culture characteristics were made and both species were epitypified with herbarium material associated with living cultures and dna sequence data. First record of asperisporium caricae causing black spot of papaya in the philippines. Cmi distribution maps of plant diseases, edition 2, no. Formation of black pustules on the abaxial surface of the leaf are characteristic of this disease. General information about asperisporium caricae asprca eppo global database. Asperisporium caricae asprcaoverview eppo global database. Antagonism of fungi with biocontrol potential of papaya black spot. Among the four provinces surveyed, the disease was found on papaya variety red lady in batangas and cavite, but not in laguna and quezon.
Diseases in tropical and plantation crops as affected by. Asperisporium caricae incertae sedis hear species info. Closeup of underside of a papaya leaf showing black spot, asperisporium caricae. Asperisporium caricae is responsible for an important leaf and fruit spot disease of carica papaya papaw or papaya stevens 1939 that is. The fruits are affected on the surface, reducing the freshmarket value, but there is no reduction in quality.
Prsvp is the greatest problem for papaya production worldwide and potentially poses the greatest. It assists researchers, extentionists and farmers in pest recognition, management, and in quarantine matters. Fruit and leaf lesions often are invaded by what appears to be a. Keep the orchard free of weeds to minimize alternative hosts to the. Field and laboratory evaluations of fungicides for the. Maublanc published his article in two languages in lavoura and separately in bull. Pdf on jun 1, 2015, armando lopez and others published asperisporium caricae find, read and cite all the research you need on researchgate. 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 69 m. Selecting blackspot resistant papaya genotypes derived.
Papaw production in australia is limited by five major diseases. Papaya, carica papaya, is an herbaceous perennial in the family caricaceae grown for its edible fruit. A newly emerging disease of papaya in ethiopia longdom. Pp1 efficacy evaluation of plant protection products. Plant parts affected include leaves, fruit and stem. Pp3 environmental risk assessment of plant protection products. Jis g3444 pdf jis g carbon steel tubes for general structural purposes 1.
This japanese industrial standard specifies the carbon steel tubes hereafter referred. On the upper surface, the lesions are rounded or somewhat angular, 25 mm in diameter, pale yellow, with dark margins. Black spot of papaya is a widespread fungus disease found in the usa texas, brazil. Phylogeographic distribution of asperisporium caricae isolates in. Pdf asperisporium black spot of papaya asperisporium caricae. Pdf black spot of papaya caused by asperisporium caricae is reported for the first time in the philippines. The disease lowers the quality of the fruits in the market. Papaya pawpaw diseases and pests, description, uses. Asperisporium and pantospora mycosphaerellaceae ncbi nih. In ethiopia, asperisporium caricae has been observed in most papaya.
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