Occurrence and Distribution of Colletotrichum spp. on Mango (Mangifera indica L.) in Puerto Rico and Florida, USA

Rivera-Vargas, I Lydia; Lugo-Noel, Yanaliz; McGovern, James R.; Seijo, T. E.; Davis, John M.

doi:10.3923/ppj.2006.191.198

Cited by 20 publications

(2 citation statements)

References 10 publications

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“…The cultures obtained were purified by successive subculturing in fresh Petri dishes until pure cultures were obtained. Conidia were visually inspected using a light microscope and identification based on conidial and colony morphology was performed according to the methods described by Pandey et al [17] and Rivera-Vargas et al [18].…”

Section: Isolation and Identification Of Colletotrichum Spmentioning

confidence: 99%

Use of medicinal plant extracts and chitosan as an alternative to chemicals to control mango postharvest anthracnose

Yardjouma Silué,

Mohamed Cissé,

Yao Firmin N'guessan

et al. 2023

World J. Adv. Res. Rev.

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Anthracnose caused by Colletotrichum gloeosporioides is one of the most important post-harvest diseases affecting mangoes’ post-harvest management, resulting in huge post-harvest losses. However, the present research aims to study the antifungal activity of chitosan and aqueous extracts of Tectona grandis L. and Artemisia annua L. leaves on the development of C. gloeosporioides. In the “in vitro” evaluation, chitosan at the concentration of 2.5% (v/v) and the two extracts evaluated at 10% (w/v) showed a fungicidal effect on C. gloeosporioides. While for the evaluation of mango fruit (“in situ”), the anthracnose disease was controlled with 2.5% (v/v) chitosan and 10% (w/v) aqueous extracts applied after inoculation of C. gloeosporioides. The chitosan and aqueous extract treatments did not affect the acidity and pH of the mango. However, all products used on mango fruit reduced mass loss and delayed the decline in firmness, skin greenness and ascorbic acid content after ripening. They also showed a beneficial effect on total soluble solids content. A concentration of 2.5% chitosan and 10% aqueous extracts effectively inhibited anthracnose disease and improved some ripening parameters of mangoes. Therefore, Chitosan and aqueous extracts of A. annua and Teak (Tectona grandis L.) leaves can be used as an alternative to synthetic chemicals to substantially reduce postharvest mango anthracnose.

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Section: Isolation and Identification Of Colletotrichum Spmentioning

confidence: 99%

Use of medicinal plant extracts and chitosan as an alternative to chemicals to control mango postharvest anthracnose

Yardjouma Silué,

Mohamed Cissé,

Yao Firmin N'guessan

et al. 2023

World J. Adv. Res. Rev.

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“…minor were reported as causal agents of blossom blight (Ploetz, 2003). In Homestead, Florida, USA, besides C. gloeosporioides, C. acutatum was reported infecting mango flowers and panicles (Rivera et al, 2006). Currently, C. acutatum and C. gloeosporoides are considered species complexes (Damm et al, 2012;Weir et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fungal pathogens of mango (Mangifera indica L.) inflorescences

Rivera-Vargas¹,

Perez-Cuevas²,

Cabrera-Asencio³

et al. 2021

JAUPR

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This is the first comprehensive study to identify fungal pathogens of mango (Mangifera indica L.) inflorescences in Puerto Rico. A total of 452 mango inflorescences were collected from four cultivars at seven developmental stages during two blooming seasons. Samples were gathered from the germplasm collection at the Agricultural Experiment Station of the University of Puerto Rico in Juana Díaz, Puerto Rico. Eight different symptoms were observed: cankers, flower abortion, powdery mildew, rachis necrotic lesions, rachis soft rot, tip blight, vascular wilt, and insect perforations with necrotic borders. Necrosis was the most prevalent symptom (47%), followed by powdery mildew (19%) and tip blight (6%). Symptoms of malformation were never observed in the field. Using a modified Horsfall and Barratt scale, data on all mango cultivars pooled from two blooming seasons showed that the full bloom stage, the last inflorescence developmental stage (G), displayed the highest mean disease severity (42.67%). This severity value was significantly higher than those of the other developmental stages evaluated (P<0.05). Early inflorescence developmental stages were asymptomatic or showed the lowest percentage of disease severity. An ANOVA was performed to compare disease severity among all mango cultivars regardless of developmental stage. Results showed that there were significant differences (P<0.05) between mean disease severity of cultivars ‘Parvin’ and ‘Haden’. Mean disease severity was higher in ‘Haden’ (20%) when compared to ‘Parvin’ (10.7%). There were no statistical differences in mean disease severity between cultivars ‘Irwin’, ‘Keitt’ and ‘Parvin’, or between ‘Irwin’, ‘Haden’ and ‘Keitt’. In addition to the powdery mildew caused by Pseudoidium anacardii, 26 genera of fungi, mainly of Ascomycetes, were identified from a total of 569 fungal isolates, from symptomatic and asymptomatic inflorescences. The most common fungi were: Diaporthe spp. (29%), followed by members of the Botryosphaeriaceae (16%), Curvularia spp. (11%) and Fusarium spp. (11%). Many fungal pathogens identified in this study were isolated from asymptomatic tissue, occurring as endophytes or latent pathogens: A. alternata, various members of the Botryosphaeriaceae, C. gloeosporioides complex, Cladosporium spp. and F. decemcellulare. Thus, the use of protectant fungicides will not be as effective as systemics in their control. Correct identification of fungal pathogens affecting mango inflorescences is important when quarantine regulations are applied. In addition, this information will facilitate the development of better management strategies in mango orchards.

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Mango Pathology and Diseases

Pollo

Goes

2017

Handbook of Mango Fruit

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Occurrence and Distribution of Colletotrichum spp. on Mango (Mangifera indica L.) in Puerto Rico and Florida, USA

Cited by 20 publications

References 10 publications

Use of medicinal plant extracts and chitosan as an alternative to chemicals to control mango postharvest anthracnose

Use of medicinal plant extracts and chitosan as an alternative to chemicals to control mango postharvest anthracnose

Fungal pathogens of mango (Mangifera indica L.) inflorescences

Mango Pathology and Diseases

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