Incidence and Severity of Mango Flower Malformation in Bahia State, Brazil

José, Abel Rebouças São; Souza, S. E.; Piña, Adrián Vega; Ataíde, Elma Machado

doi:10.17660/actahortic.2000.509.90

Cited by 6 publications

(2 citation statements)

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“…Malformation is easily spread by infected rootstocks (Soto-Plancarte et al 2015) or by grafting of infected vegetative buds in nurseries (Kumar et al 1993;Ploetz 2001). The MMD incidence can be up to 20% in nursery plants (Soto-Plancarte et al 2015) and 54%-80% in adult trees (Jose et al 2000;Haggag 2010). The disease severity is highly variable and is dependent on factors such as tree phenology, genotypes, and plant age (Zaccaro et al 2007;Garcia-Lopez et al 2016), as well as arid and semiarid climatic conditions, which favor MMD (Ploetz 2001;Dias et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Mango malformation: etiology, symptoms, distribution and cultivar susceptibility in the Dominican Republic

García-López¹,

Batista-Marte

Serra

et al. 2023

Can. J. Plant Sci.

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Mango malformation disease (MMD) caused by Fusarium species has become an important disease of mango ( Mangifera indica L.) orchards worldwide. In the Dominican Republic, MMD was first observed in 2008 in orchards of Azua and Peravia provinces, with incidence of up to 50%. This study aimed to estimate the malformation prevalence and distribution in the main mango growing areas of the Dominican Republic and to assess the susceptibility of six commercial cultivars commonly grown in this country. Mango malformation was found in 18 out of 58 orchards, all located in Peravia and Azua. Peravia showed the highest incidence, with values of up to 75% (2013) and 87.5% (2014), and the interpolative analysis made with ArcGIS showed this province as being more inductive for Fusarium spp. occurrence. Pathogenicity tests were conducted in 2013 and 2014 on 10-month-old healthy mango plants per cultivar. Inoculation was done by infiltration of Fusarium pseudocircinatum and Fusarium decemcellulare conidial suspensions into the vegetative apical buds, singly and in combination. In inoculated plants, symptoms such as loss of apical dominance, excessive proliferation of apical or axillary buds with thickened stems, and reduction of leaf lamina were associated with F. pseudocircinatum. In addition to these symptoms, leathery protuberant buds and eventual death of infiltrated plants were associated with F. decemcellulare, singly or coinoculated with F. pseudocircinatum. Based on a disease severity index (DSI), “Tommy Atkins” was tolerant (DSI = 7.8%) and “Puntica” and “Banilejo” were highly susceptible (DSI = 22% and 28.5%).

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Section: Introductionmentioning

confidence: 99%

Mango malformation: etiology, symptoms, distribution and cultivar susceptibility in the Dominican Republic

García-López¹,

Batista-Marte

Serra

et al. 2023

Can. J. Plant Sci.

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“…The climatic conditions of Punjab and Sindh provinces favor mango cultivation, but sometimes changes in the environment and the manifestation of diseases become the significant causes of low productivity in Pakistan. No doubt, mango is prone to various diseases throughout its development stages, but diseases at the flowering stages of mango cause more losses and directly affect productivity (Jose et al, 2000). Apical necrosis, blossom blight, and powdery mildew are primarily diseases of mango flowers and can be easily managed with an integrated disease management approach including sprays of fungicides during the flowering season (Misra et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Flower Induction and Control of Inflorescence Diseases in Mangoes using selected Fungicides and Chemical Fertilizers

Chohan

Abid

Malik

et al. 2022

Int. J. Phytopathol.

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Mango (Mangifera indica L.) is widely considered an important fruit and a major crop in tropical and subtropical regions around the world. Mango is susceptible to a variety of diseases throughout its life cycle, but diseases that strike during the flowering stage cause significant losses and have a direct impact on productivity. Flowering in mango is unreliable from season to season because environmental signals for flower initiation are frequently inconsistent. During the current research, we identify the most promising laboratory-grade synthetic chemical, chemical fungicide, or their feasible combination that promotes floral development, induces flowering, and combats inflorescence diseases, which reduce production. For this investigation, a field trial was conducted with multiple treatments. Compared to the control, the potassium nitrate treatment resulted in the highest flowering/flower emergence (8.67%), followed by calcium carbonate (7.33%) and potassium nitrate with the combination of Champion (6.66%) and Cabrio Top (5.32). Minimum flowering occurred on plants treated with fungicides alone, i.e., Contaf Plus (3.33%), compared to the control (1.33%). Contaf Plus was the most effective chemical against all inflorescence diseases in the field. The disease with the highest incidence was blossom blight at 42.90%, followed by apical necrosis at 39%, mango deformity at 17.70%, and powdery mildew at a low of 0.40%. The combined application of potassium nitrate and Copper hydroxide exhibited the best response in the field for inducing flowering and flower set on mango inflorescences, while potassium nitrate and calcium nitrate were the most effective for inducing flowers on mango trees when treated independently. Current research is extensive on the inducement of flowering and inhibition of flower disease through the application of chemicals alone or in combination.

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VCG and AFLP analyses identify the same groups in the causal agents of mango malformation in Brazil

et al. 2008

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The causal agents of mango malformation disease in Brazil are a new Fusarium lineage in the Gibberella fujikuroi species complex and Fusarium sterilihyphosum; however information on the genetic and geographical diversity of these pathogens in Brazil is missing. Vegetative compatibility group (VCG) and amplified fragment length polymorphism (AFLP) analyses were used to measure the genetic diversity within these populations. Both techniques identified the same genetic groups. Six VCG and AFLP groups were identified amongst isolates of the new lineage from Brazil. FB-VCG 1/AFLP I was the most widespread group, found in seven of the 13 sites sampled. The second most frequent group was recovered from three sites. The remaining four groups were recovered from single-sites. We think that this lineage represents a genetically and geographically diverse indigenous population that reproduces clonally. In F. sterilihyphosum, group FS-VCG 1/AFLP VII was found at three sites in the southeast region of Brazil. FS-VCG 2/AFLP VIII contained isolates from South Africa but not from Brazil. Fusarium mangiferae isolates from India and South Africa formed one group, while isolates from Egypt and the USA formed a second group. F. sterilihyphosum at present is represented by a small population that might have been introduced only once into a restricted area. The clonal nature of the observed populations suggests that these fungi either occur naturally on indigenous hosts and have jumped to the introduced mango host (introduced in Brazil) or that they originated with mango and went through a severe population bottleneck when they were introduced to Brazil from India or Southeast Asia.

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Incidence and Severity of Mango Flower Malformation in Bahia State, Brazil

Cited by 6 publications

References 0 publications

Mango malformation: etiology, symptoms, distribution and cultivar susceptibility in the Dominican Republic

Mango malformation: etiology, symptoms, distribution and cultivar susceptibility in the Dominican Republic

Flower Induction and Control of Inflorescence Diseases in Mangoes using selected Fungicides and Chemical Fertilizers

VCG and AFLP analyses identify the same groups in the causal agents of mango malformation in Brazil

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