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White Thread Blight Disease Caused by Marasmiellus Scandens (Massee) Dennis & Reid on Cocoa and Its Control in Ghana
Vol. 11(50), pp. 5064-5070, 15 December, 2016 DOI: 10.5897/AJAR2016.11681 Article Number: 786B84F62138 African Journal of Agricultural ISSN 1991-637X Copyright ©2016 Research Author(s) retain the copyright of this article http://www.academicjournals.org/AJAR Full Length Research Paper White thread blight disease caused by Marasmiellus scandens (Massee) Dennis & Reid on cocoa and its control in Ghana Amoako-Attah I.*, Akrofi A. Y., Rashid Bin Hakeem, Mercy Asamoah and Kumi-Asare E. Cocoa Research Institute of Ghana, P. O. Box 8, Akim-Tafo, Ghana. Received 8 September, 2016; Accepted 25 October, 2016 White thread blight disease (WTBD) is currently emerging as an important foliar disease on cocoa in Ghana. The disease has been known in the country for many years. Yet, the incidence and severity levels on cocoa in the growing regions are not known. Surveys and sampling were conducted between 2011 and 2013 to estimate incidence and severity of WTBD in the six cocoa growing regions (Ashanti, Brong-Ahafo, Central, Eastern, Western and Volta) of Ghana. Diseased samples were assayed for the infecting fungus and its identification. Chi square tests were used to find relationships between age, sanitation practice and the disease severity. Effectiveness of chemical and cultural control methods against the disease were tested. The disease was found in all the cocoa growing regions of Ghana and out of 24,000 trees inspected, 1,281 (5.3%) were infected. The majority of infected trees (74.2%) were moderately affected but 3.2% of the trees were very severely affected and almost dead. A positive correlation (r = 0.889) was found between WTBD incidence and the severity. -
Star Fruit(Carambola)
THE MINISTRY OF AGRICULTURE AND AGRO-BASED INDUSTRY KUALA LUMPUR MALAYSIA FFOORR MMAARRKKEETT AACCCCEESSSS OONN SSTTAARR FFRRUUIITT ((CCaarraammbboollaa)) CROP PROTECTION & PLANT QUARANTINE SERVICES DIVISION DEPARTMENT OF AGRICULTURE KUALA LUMPUR Technical Document For Market Access On Star fruit (carambola) October 2004 MALAYSIA 2004 Page i Ms. Asna Booty Othman, Director, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia, wishes to extend her appreciation and gratitude to the following for their contribution, assistance and cooperation in the preparation of this Technical Document For Star fruit (Carambola):- Mr. Muhamad Hj. Omar, Assistant Director, Phytosanitary and Export Control Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Ms. Nuraizah Hashim, Agriculture Officer, Phytosanitary and Export Control Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Appreciation is also extended to Y. Bhg. Dato’ Ismail Ibrahim, Director-General of Agriculture, for his support and guidance in the preparation of this Document. Technical Document For Market Access On Star fruit (carambola) October 2004 Page ii TABLE OF CONTENTS Section Page No. Agronomy Aspects Scientific Name 1 Family 1 Common Name 1 Introduction 1 Nutrient Composition 1 Origin 2 Adaptation 2 Use And Potential 2 Marketing 2 Main Areas 3 Varieties/Clones 3 Botanical Description 3 Tree 3 Leaves 3 Flowers 4 Fruit 4 Crop Requirement 4 Climate -
F for Market Access on Pineapple
MINISTRY OF AGRICULTURE AND AGRO-BASED INDUSTRY MALAYSIA KUALA LUMPUR MALAYSIA FFFOOORRR MMMAAARRRKKKEEETTT AAACCCCCCEEESSSSSS OOONNN PPPIIINNNEEEAAAPPPPPPLLLEEE (((AAAnnnaaannnaaasss cccooommmooosssuuusss))) CROP PROTECTION AND PLANT QUARANTINE SERVICES DIVISION DEPARTMENT OF AGRICULTURE KUALA LUMPUR MALAYSIA T e c h n i c a l D o 2 c 0 u 0 m 4 e nt For Market Access On Pineapple i ACKNOWLEDGEMENT Ms. Asna Booty Othman, Director, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia, wishes to extend her appreciation and gratitude to the following for their contribution, assistance and cooperation in the preparation of this Technical Document For Market Access on Pineapple:- Mr. Muhamad Hj. Omar, Assistant Director, Phytosanitary and Export Control Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Ms. Nuraizah Hashim, Agriculture Officer, Phytosanitary and Export Control Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Mr. Yusof Othman, Agriculture Officer, Insects Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Ms. Nurazarina Dato’ Abu Bakar, Agriculture Officer, Disease Section, Crop Protection and Plant Quarantine Services Division, Department of Agriculture Malaysia; Ms. Norma Othman, Assistant Director, Fruit Division, Department of Agriculture Malaysia; Appreciation is also extended to Y. Bhg. Dato’ Ismail Ibrahim, Director-General of Agriculture, -
20 Pest Management in Organic Cacao
20 Pest Management in Organic Cacao Régis Babin* International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya Introduction Americas produced around 14% of total world production of cocoa (FAOSTAT, 2014). General information on cacao Cacao crop expansion in Africa and Asia came with the emergence of major pests Cacao, Theobroma cacao, is a small tree and diseases, which have adapted to the from the family Malvaceae, and originated crop from their local host plants. The most in different forest areas of South and Central infamous examples are the cocoa mirids America (Wood, 1985). During the 20th cen- Sahlbergella singularis Hagl. and Distantiel- tury, the cacao-growing belt spread consid- la theobroma Dist. (Hemiptera: Miridae), and erably over tropical areas of America, Africa the black pod disease due to Phytophthora and Asia, and is around 10 million ha today palmivora Butler and Phytophthora mega- (FAOSTAT, 2014). Cocoa beans are pro- karya, which became major threats for West duced for butter and powder that are used African-producing countries in the 1960s mainly in chocolate manufacture. In 2014, and 1970s, respectively (Entwistle, 1985; chocolate confectionery produced revenues Lass, 1985). In Latin America, witches’ of around US$120 bn, and these are ex- broom disease due to the basidiomycete fun- pected to grow with the developing markets gus Moniliophthora perniciosa highly im- in countries with rising middle classes pacted production of cocoa in Brazil in the (Hawkins and Chen, 2014). At the same time, 1990s (Meinhardt et al., 2008), while the cocoa world production rose constantly for frosty pod rot, due to Moniliophthora roreri, decades and reached 5 million t in 2012 that is widely spread in Latin America, cur- (FAOSTAT, 2014). -
Effect of Nutrition and Soil Function on Pathogens of Tropical Tree Crops
10 Effect of Nutrition and Soil Function on Pathogens of Tropical Tree Crops Peter McMahon Department of Botany, La Trobe University, Bundoora Vic Australia 1. Introduction Crops grown in the tropics are subject to different kinds of disease pressure from those produced in temperate regions. The greater biodiversity found in the tropics, including diversity of fungi, is reflected by the larger number of pathogen species in tropical regions (see Ploetz, 2007; Wellman, 1968, 1972). Perennial crops, and tropical perennials in particular, have features in common that may predispose them to pathogen infections. Pathogen inocula, such as microsclerotia, may build up from year to year in perennial crops (Pennypacker, 1989). Also, tropical conditions are usually suitable for the year-round survival and propagation of pathogen species, unlike temperate climates which have a cooler season when pathogen populations die off or are reduced. Tropical perennial crops often include susceptible genotypes on the farm and the presence of susceptible host material encourages the production of inoculum and the initiation of new infections (Ploetz, 2007). Ploetz (2007) remarks that the presence of susceptible hosts is a particularly important barrier to disease control in tropical perennials. Diseases in the tropics may be complicated by interactions between different pathogens, or between pathogens and insect pests (Holliday, 1980; Ploetz, 2006; Vandermeer et al., 2010; Anonymous, 2010). Disease complexes involving a number of fungal pathogens or fungi and nematodes are common in tropical situations. Interactions between pathogens and environmental stress may also occur. Crops can become more susceptible to pathogen infections when weakened by environmental stress such as drought, temperature extremes, and exposure to sunlight or wind (Agrios, 2005). -
(1962) Heft (7): Pests of Crops in Warm Climates and Their
Index Objekttyp: Index Zeitschrift: Acta Tropica Band (Jahr): 19 (1962) Heft (7): Pests of crops in warm climates and their control PDF erstellt am: 10.10.2021 Nutzungsbedingungen Die ETH-Bibliothek ist Anbieterin der digitalisierten Zeitschriften. Sie besitzt keine Urheberrechte an den Inhalten der Zeitschriften. Die Rechte liegen in der Regel bei den Herausgebern. Die auf der Plattform e-periodica veröffentlichten Dokumente stehen für nicht-kommerzielle Zwecke in Lehre und Forschung sowie für die private Nutzung frei zur Verfügung. Einzelne Dateien oder Ausdrucke aus diesem Angebot können zusammen mit diesen Nutzungsbedingungen und den korrekten Herkunftsbezeichnungen weitergegeben werden. Das Veröffentlichen von Bildern in Print- und Online-Publikationen ist nur mit vorheriger Genehmigung der Rechteinhaber erlaubt. Die systematische Speicherung von Teilen des elektronischen Angebots auf anderen Servern bedarf ebenfalls des schriftlichen Einverständnisses der Rechteinhaber. Haftungsausschluss Alle Angaben erfolgen ohne Gewähr für Vollständigkeit oder Richtigkeit. Es wird keine Haftung übernommen für Schäden durch die Verwendung von Informationen aus diesem Online-Angebot oder durch das Fehlen von Informationen. Dies gilt auch für Inhalte Dritter, die über dieses Angebot zugänglich sind. Ein Dienst der ETH-Bibliothek ETH Zürich, Rämistrasse 101, 8092 Zürich, Schweiz, www.library.ethz.ch http://www.e-periodica.ch INDEX Abdomen 1, 4. Agromyza phaseoli 188 Abgrnllaspis cyanophylli 401 Agromyzidae 33 Acaricides 476, 477, 490 Agrotis 66 Acarina -
From a Technology Focus to Innovation Development : the Management of Cocoa Pests and Diseases in Ghana
From a technology focus to innovation development The management of cocoa pests and diseases in Ghana E. N. A. Dormon Supervisors: Prof. Dr. Ir. Cees Leeuwis Hoogleraar Communicatie en Innovatie Studies Wageningen Universiteit Prof. Dr. Ir. A rnold van Huis Persoonlijk hoogleraar bij de leerstoelgroep E ntomologie Wageningen Universiteit Prof. Dr. Daniel Obeng-Ofori Professor of Entomology, University of Ghana Dr. Owuraku Sakyi-Dawson Department of Agricultural Extension, University of Ghana Promotiecommissie: Prof. Dr. Ir. Paul C. Struik, Wageningen Universiteit Prof. Dr. Kwame Offei, University of Ghana Dr. Felix Y.M. Fiadjoe , University of Ghana Prof. Dr. A Niehof, Wageningen Universiteit Dit onderzoek is uitgevoerd binnen de onderzoeksschool CERES From a technology focus to innovation development The management of cocoa pests and diseases in Ghana E. N. A. Dormon Proefschrift Ter verkrijging van de graad van doctor op gezag van de rector magnificus van Wageningen Universiteit, Prof. Dr. M.J. Kropff, in het openbaar te verdedigen op maandag 16 oktober 2006 des namiddags te 15.00 uur in de Great Hall, University of Ghana, Legon E. N. A. Dormon From a technology focus to innovation development: the management of cocoa pests and diseases in Ghana Thesis Wageningen – with summary in Dutch ISBN-nr. 90-8504-439-1 To the cocoa farmers in Achiansah, Ntumkum and Adarkwa Acknowledgements During the last few weeks of my MSc course in Wageningen, I divided my attention between writing my thesis and hunting for opportunities to pursue a PhD programme. The project Convergence of Sciences provided this opportunity but it was not straight forward. Prof. -
EU Project Number 613678
EU project number 613678 Strategies to develop effective, innovative and practical approaches to protect major European fruit crops from pests and pathogens Work package 1. Pathways of introduction of fruit pests and pathogens Deliverable 1.3. PART 7 - REPORT on Oranges and Mandarins – Fruit pathway and Alert List Partners involved: EPPO (Grousset F, Petter F, Suffert M) and JKI (Steffen K, Wilstermann A, Schrader G). This document should be cited as ‘Grousset F, Wistermann A, Steffen K, Petter F, Schrader G, Suffert M (2016) DROPSA Deliverable 1.3 Report for Oranges and Mandarins – Fruit pathway and Alert List’. An Excel file containing supporting information is available at https://upload.eppo.int/download/112o3f5b0c014 DROPSA is funded by the European Union’s Seventh Framework Programme for research, technological development and demonstration (grant agreement no. 613678). www.dropsaproject.eu [email protected] DROPSA DELIVERABLE REPORT on ORANGES AND MANDARINS – Fruit pathway and Alert List 1. Introduction ............................................................................................................................................... 2 1.1 Background on oranges and mandarins ..................................................................................................... 2 1.2 Data on production and trade of orange and mandarin fruit ........................................................................ 5 1.3 Characteristics of the pathway ‘orange and mandarin fruit’ ....................................................................... -
Genera of Corticioid Fungi: Keys, Nomenclature and Taxonomy Article
Studies in Fungi 5(1): 125–309 (2020) www.studiesinfungi.org ISSN 2465-4973 Article Doi 10.5943/sif/5/1/12 Genera of corticioid fungi: keys, nomenclature and taxonomy Gorjón SP BIOCONS – Department of Botany and Plant Physiology, University of Salamanca, 37007 Salamanca, Spain Gorjón SP 2020 – Genera of corticioid fungi: keys, nomenclature, and taxonomy. Studies in Fungi 5(1), 125–309, Doi 10.5943/sif/5/1/12 Abstract A review of the worldwide corticioid homobasidiomycetes genera is presented. A total of 620 genera are considered with comments on their taxonomy and nomenclature. Of them, about 420 are accepted and keyed out, described in detail with remarks on their taxonomy and systematics. Key words – Corticiaceae – Crust fungi – Diversity – Homobasidiomycetes Introduction Corticioid fungi are a diverse and heterogeneous group of fungi mainly referred to basidiomycete fungi in which basidiomes are generally resupinate. Basidiome construction is often simple, and in most cases, only generative hyphae are found. In more structured basidiomes, those with a reflexed margin or with a pileate surface, more or less sclerified hyphae are usually found. Even the basidiome structure is apparently not very complex, hymenophore configuration should be highly variable finding smooth surfaces or different variations to increase the spore production area such as rugose, tuberculate, aculeate, merulioid, folded, or poroid hymenial surfaces. It is often thought that corticioid fungi produce unattractive and little variable forms and, in most cases, they go unnoticed by most mycologists as ungraceful forms that ‘cover sticks and look like a paint stain’. Although the macroscopic variability compared to other fungi is, but not always, usually limited, under the microscope they surprise with a great diversity of forms of basidia, cystidia, spores and other microscopic elements (Hjortstam et al. -
Microfungi Associated with Camellia Sinensis: a Case Study of Leaf and Shoot Necrosis on Tea in Fujian, China
Mycosphere 12(1): 430–518 (2021) www.mycosphere.org ISSN 2077 7019 Article Doi 10.5943/mycosphere/12/1/6 Microfungi associated with Camellia sinensis: A case study of leaf and shoot necrosis on Tea in Fujian, China Manawasinghe IS1,2,4, Jayawardena RS2, Li HL3, Zhou YY1, Zhang W1, Phillips AJL5, Wanasinghe DN6, Dissanayake AJ7, Li XH1, Li YH1, Hyde KD2,4 and Yan JY1* 1Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, People’s Republic of China 2Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Tha iland 3 Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu’an 355015, People’s Republic of China 4Innovative Institute for Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People’s Republic of China 5Universidade de Lisboa, Faculdade de Ciências, Biosystems and Integrative Sciences Institute (BioISI), Campo Grande, 1749–016 Lisbon, Portugal 6 CAS, Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China 7School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China Manawasinghe IS, Jayawardena RS, Li HL, Zhou YY, Zhang W, Phillips AJL, Wanasinghe DN, Dissanayake AJ, Li XH, Li YH, Hyde KD, Yan JY 2021 – Microfungi associated with Camellia sinensis: A case study of leaf and shoot necrosis on Tea in Fujian, China. Mycosphere 12(1), 430– 518, Doi 10.5943/mycosphere/12/1/6 Abstract Camellia sinensis, commonly known as tea, is one of the most economically important crops in China. -
Identificação De Receptores De Plantas Envolvidos No
UNIVERSIDADE ESTADUAL DE CAMPINAS INSTITUTO DE BIOLOGIA GUSTAVO HENRIQUE ALCALÁ ZAPAROLI “Uma segunda família de proteínas indutoras de necrose encontrada em Moniliophthora perniciosa, causador da doença Vassoura-de-Bruxa em cacaueiros” Tese apresentada ao Instituto de Biologia para obtenção do Título de Mestre em Genética e Biologia Molecular, na área de Genética de Microorganismos. Orientador: Prof. Dr. Gonçalo Amarante Guimarães Pereira Campinas, 2007 1 2 3 AGRADEÇO À MINHA FAMÍLIA PELO APOIO E COMPREENSÃO, AO PESSOAL DO LAB. E AOS MEUS AMIGOS. “O SIMPLES FARFALHAR DE ASAS DE UMA BORBOLETA PODE CAUSAR UM TUFÃO NO OUTRO LADO DO MUNDO” 4 RESUMO O fungo basidiomiceto hemibiotrófico Monilophthora perniciosa é o agente causador da doença Vassoura-de-Bruxa em cacaueiros. A infecção é caracterizada pela hipertrofia e hiperplasia dos tecidos da planta durante a fase biotrófica do fungo, formando as denominadas vassouras-verdes, que sofrem necrose e completa degradação durante a fase saprotrófica do fungo, formando as vassouras-secas. Encontramos no genoma de M. perniciosa pelo menos cinco seqüências codificando possíveis proteínas similares aos membros da família Cerato-platanina, uma classe de proteínas inicialmente encontrada no fitopatógeno Ceratocystis fimbriata. Um dos genes de M. perniciosa cerato-platanina (MpCP1) foi expresso “in vitro” e mostrou ter capacidade de induzir necrose em folhas de tabaco e cacaueiro. A proteína apresenta-se em solução como um dímero e é capaz de recuperar a capacidade de necrose após tratamento de denaturação térmica. Análises de transcrição “ex planta” mostraram que MpCP1 é mais expresso no micélio biotrófico do que no saprotrófico. O perfil de necrose apresentado é diferente do causado pelas MpNEPs (outra família de elicitores presente em M. -
Strategy for Insect Pest Control in Cocoa
American Journal of Experimental Agriculture 6(6): 416-423, 2015, Article no.AJEA.2015.099 ISSN: 2231-0606 SCIENCEDOMAIN international www.sciencedomain.org Strategy for Insect Pest Control in Cocoa Richard Adu-Acheampong1*, Joseph Easmon Sarfo1, Ernest Felix Appiah1, Abraham Nkansah1, Godfred Awudzi1, Emmanuel Obeng1, Phebe Tagbor1 and Richard Sem1 1Entomology Division, Cocoa Research Institute of Ghana, P.O.Box 8, Tafo-Akim, Ghana. Authors’ contributions This work was carried out in collaboration between all authors. Authors RAA, JES, EFA and GA defined the research theme and wrote the first draft of the manuscript. Authors AN, PT and RS co- worked on associated data collection and their interpretation. Author EO provided additional information from field experiments. PT reviewed all drafts of the manuscript. All authors read and approved the final manuscript. Article Information DOI: 10.9734/AJEA/2015/12956 Editor(s): (1) Marco Aurelio Cristancho, National Center for Coffee Research, CENICAFÉ, Colombia. Reviewers: (1) Anonymous, Greece. (2) Anonymous, South Africa. (3) Anonymous, India. (4) Anonymous, Ghana. (5) Anonymous, Italy. (6) Ian Mashezha, Zimbabwe Open University, Zimbabwe. Complete Peer review History: http://www.sciencedomain.org/review-history.php?iid=868&id=2&aid=7702 Received 25th July 2014 th Opinion Article Accepted 30 September 2014 Published 9th January 2015 ABSTRACT Farming systems in cocoa over the last three decades have involved the use of new hybrid plant varieties, which produce pods throughout the year, intensified fertilizer use, and misguided pesticide applications by some farmers. Resource availability in terms of abundance of feeding and breeding sites and ecological disruption as a consequence of climate change and bad agronomic practices have increased the importance of insect pests on cocoa.