<i>Colletotrichum gloeosporioides</i> s.l. causes an outbreak of anthracnose of cacao in Ghana

Asare, EK; Domfeh, O.; Avicor, Silas Wintuma; Pobee, P.; Bukari, Yahaya; Amoako-Attah, Ishmael

doi:10.1080/02571862.2020.1863485

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…Mango is highly susceptible to diseases due to the high water-nutrient content which serves as a perfect media for fungal pathogen development [8]. Production and export of mango in Ghana keeps dwindling due to the prevalence and severity of diseases such as the anthracnose [9]. Among the many diseases limiting mango production is the Anthracnose disease caused by the fungus Colletotrichum gloeosporioides Penz.…”

Section: Impact Of Anthracnose On Mango Production In Ghanamentioning

confidence: 99%

Anthracnose Disease of Mango: Epidemiology, Impact and Management Options

Kankam¹,

Larbi-Koranteng²,

Adomako³

et al. 2023

Current and Emerging Challenges in the Diseases of Trees

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Mango is one of the frequently cultivated seasonal fruit crops in several tropical and subtropical regions. It is consumed as whole fruits apart from serving as raw materials for most industries that are into mineral production. Mango production is, however, constrained by diseases, pests, and poor post-harvest handling of fruits. Anthracnose disease, caused by Colletotrichum gloeosporioides Penz and Sacc, is one of the most important yields limiting constraint in mango production across the globe. The disease occurs in both the field and post-harvesting. In the field, it affects aboveground parts, such as the stem, branches, leaves, flowers, and fruits. Anthracnose disease reduces the shelve life and marketability of mango fruit. In Ghana, anthracnose disease is responsible for about 30% yield/fruit loss. Most farmers do not control it, although some have resorted to the application of various fungicides not registered for mango anthracnose disease management in Ghana. This chapter will highlight on the importance of the disease on the mango industry in Ghana, control strategies currently employed thereby reducing the over-reliance on chemical control option and propose ways to minimize the effect of the disease in the country.

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Section: Impact Of Anthracnose On Mango Production In Ghanamentioning

confidence: 99%

Anthracnose Disease of Mango: Epidemiology, Impact and Management Options

Kankam¹,

Larbi-Koranteng²,

Adomako³

et al. 2023

Current and Emerging Challenges in the Diseases of Trees

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“…In 2019, Ghana reported economic losses from an anthracnose outbreak in cacao crops, the main export product [ 36 ]. In addition, coffee anthracnose is widely distributed in coffee-growing countries globally, causing devastating damage and significant crop losses [ 37 ].…”

Section: Anthracnose: the Big Problem With Colletotrichum G...mentioning

confidence: 99%

Green Management of Postharvest Anthracnose Caused by Colletotrichum gloeosporioides

Peralta-Ruiz

Rossi

Grande-Tovar

et al. 2023

JoF

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Fruits and vegetables are constantly affected by postharvest diseases, of which anthracnose is one of the most severe and is caused by diverse Colletotrichum species, mainly C. gloeosporioides. In the last few decades, chemical fungicides have been the primary approach to anthracnose control. However, recent trends and regulations have sought to limit the use of these substances. Greener management includes a group of sustainable alternatives that use natural substances and microorganisms to control postharvest fungi. This comprehensive review of contemporary research presents various sustainable alternatives to C. gloeosporioides postharvest control in vitro and in situ, ranging from the use of biopolymers, essential oils, and antagonistic microorganisms to cultivar resistance. Strategies such as encapsulation, biofilms, coatings, compounds secreted, antibiotics, and lytic enzyme production by microorganisms are revised. Finally, the potential effects of climate change on C. gloeosporioides and anthracnose disease are explored. Greener management can provide a possible replacement for the conventional approach of using chemical fungicides for anthracnose postharvest control. It presents diverse methodologies that are not mutually exclusive and can be in tune with the needs and interests of new consumers and the environment. Overall, developing or using these alternatives has strong potential for improving sustainability and addressing the challenges generated by climate change.

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“…Sacc., yang menyebabkan penyakit antraknosa pada kakao (Rojas et al, 2010). Serangan berat jamur C. gloeosporioides mampu menurunkan jumlah daun dan buah, sehingga memengaruhi produksi tanaman kakao (Aksare et al, 2021). Jamur dapat disebarkan oleh angin kencang yang menerbangkan spora dari daun yang bergerak, oleh tenaga pembibitan yang menangani tanaman yang sakit, dan oleh pergerakan siput dan hama lainnya (Uchida & Kadooka, 1997).…”

Section: Pendahuluanunclassified

Aplikasi metabolit sekunder dari tiga isolat Pseudomonas fluorescens untuk mengendalikan penyakit antraknosa pada daun kakao

FITRIANTI¹,

Soesanto

MUGIASTUTI³

et al. 2022

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Anthracnose caused by Colletotrichum gloeosporoides is an important disease in cocoa. This research aimed to determine the effectiveness of secondary metabolites derived from three isolates of Pseudomonas fluorescens to control cocoa leaves anthracnose, and their influence on the growth of cocoa plants. The research was conducted at a smallholder cocoa plantation in Putat Village, Patuk District, Gunung Kidul Regency, Yogyakarta for four months. A randomized block design was used with four replicates and seven treatments consisted of control, application of secondary metabolites from P. fluorescens P60, P. fluorescens P20, P. fluorescens P8, combination P. fluorescens P60 + P20, P. fluorescens P60 + P8, and P. fluorescens P20 + P8. Variables observed were disease intensity, infection rate, number of healthy shoots and qualitative phenolic compound. Resultsof the research showed that the secondary metabolites of P. fluorescens P60, P20 and P8 alone or in combination suppressed the disease intensity by42.01-54.50%. The infection rate caused by metabolite secondary of P. fluorescens P60, P20, P8, P. fluorescens P60+P20, P. fluorescens P60+P8,and P. fluorescens P20+P8 was 0.23; 0.25; 0.26; 0.26; 0.31; and 0.24 units/day, respectively. The secondary metabolites of P. fluorescens P60 increased the number of healthy shoots by 67.44 %. The secondary metabolites of P. fluorescens P60 increased phenolic compounds (tannin, saponin, and glycosides) in cocoa leaves.[Keyword: leaves anthracnose, Colletotrichum gloeosporoides, cocoa, secondary metabolites, Pseudomonas fluorescens] AbstrakAntraknosa yang disebabkan oleh Colletotrichum gloeosporioides merupakan penyakit penting pada tanaman kakao. Penelitian bertujuan mengkaji keefektifan metabolit sekunder dari tiga isolat Pseudomonas fluorescens untuk mengendalikan penyakit antraknosa pada daun kakao, serta pengaruhnya terhadap pertumbuhan tanaman kakao. Penelitian dilaksanakan di perkebunan kakao rakyat, Desa Putat, Kecamatan Patuk, Kabupaten Gunung Kidul, Yogyakarta selama empat bulan. Penelitian menggunakan rancangan acak kelompok untuk menguji 7 perlakuan yang diulang 4 kali, perlakuan yang diuji adalah kontrol, aplikasi metabolit sekunder P. fluorescens P60, P. fluorescens P20, P. fluorescens P8, kombinasi P. fluorescens P60+P20, P. fluorescens P60+P8, dan P. fluorescens P20+P8. Variabel pengamatan meliputi intensitas penyakit, laju infeksi, jumlah tunas sehat, dan kandungan senyawa fenol secara kualitatif. Hasil penelitian menunjukkan bahwa perlakuan metabolit sekunder P. fluorescens P60, P20, dan P8 secara tunggal dan gabungan mampu menekan intensitas penyakit berkisar 42,01-54,50%. Laju infeksi perlakuan metabolit sekunder P. fluorescens P60, P. fluorescens P20, P. fluorescens P8, kombinasi P. fluorescens P60+P20, P. fluorescens P60+P8 dan P. fluorescens P20+P8 berturut-turut 0,23; 0,25; 0,26; 0,26; 0,31; dan 0,24 unit/hari. Metabolit sekunder P. fluorescens P60 meningkatkan jumlah tunas sehat sebesar 67,44%. Perlakuan P. fluorescens P60 meningkatkan senyawa fenol (saponin, tanin, dan glikosida) pada daun kakao.[Kata kunci: antraknosa daun, Colletotrichum gloeosporoides, kakao, metabolit sekunder, Pseudomonas fluorescens]

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Colletotrichum gloeosporioides s.l. causes an outbreak of anthracnose of cacao in Ghana

Cited by 6 publications

References 15 publications

Anthracnose Disease of Mango: Epidemiology, Impact and Management Options

Anthracnose Disease of Mango: Epidemiology, Impact and Management Options

Green Management of Postharvest Anthracnose Caused by Colletotrichum gloeosporioides

Aplikasi metabolit sekunder dari tiga isolat Pseudomonas fluorescens untuk mengendalikan penyakit antraknosa pada daun kakao

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