Download or read book Red Ring Disease of Cocos Nucifera L Caused by Rhadinaphelenchus Cocophilus Cobb 1919 Goodey 1960 written by C. G. Dean and published by . This book was released on 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Ring Disease of the Coconut Palm Incited by Rhadinaphelenchus Cocophilus Cobb 1919 Goodey 1960 written by G.P. Blair and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Ring Disease of the Coconut Palm Incited by Rhadinaphelenchus Cocophilus Cobb 1919 Goodey 1960 written by Gaston Percival Blair and published by . This book was released on 1963 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rhadinaphelenchus cocophilus incited red ring disease when inoculated artificially into stem, leaves, or roots of coconut pains between 3-10 years old. Inoculation was effected by inserting fragments of diseases tissue or a water suspension of the nematode into holes made in the tree at the sites mentioned above. Nematodes also penetrated intact tissue of leaf axils, petioles and roots. External symptoms appeared 40-70 days after inoculation and trees were dead in six to eight weeks after symptoms first appeared. The coconut does not become naturally infested but green nuts were successfully infested artificially both on trees and in the laboratory. The epicarp of infested nuts became brown, hard and shrivelled. The mesocarp became reddish brown and containedliving nematodes. The nematodes did not pass from infested to healthy nuts through the fruit stalk. R. cocophilus is found intercellularly and intracellularly in the ground parenchyma of infested tissue. Some cells disintegrate forming cavities in which nematodes are abundant. Many of the cells in the infested tissue lose their contents. The nematodes tend to migrate to areas with living cells. Adults and eggs are in greater numbers in the crown region of trees where lesions terminate in elongate streaks and dots of orange colored tissue. Nematodes do not invade xylem vessels nor damage them directy. However, the vessels which pass through the discolored areas become occluded with tyloses and as result the water conducting system of infested trees become...
Download or read book The Coconut Palm Cocos nucifera L Research and Development Perspectives written by V. Krishnakumar and published by Springer. This book was released on 2019-02-15 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of "The coconut palm - A monograph" in 1960, considerable information has been accrued on the crop through work at research institutes, international organisations and development agencies. Although coconut cultivation is spread over 93 countries, providing employment and creating livelihood opportunities to 64 million families around the globe, smallholder coconut farmers are now facing numerous challenges. The wide gap between the potential and actual yield is a major concern, and as such it is necessary to disseminate knowledge in order to implement research findings. Coconut research in India, one of the leading coconut producing countries, is celebrating its centenary, making this an opportune time to review the research and development advances and the relevant technologies. This detailed, comprehensive book covers all aspects of coconut, from the origins to cultivation, breeding, physiology and value addition, as well as subjects of topical interest like nutrition and health, biotechnology, and climate change and carbon sequestration. Written by leading experts in the fields it emphasises that the livelihood of the small coconut landholders is the ultimate aim of scientists and developmental agencies, and outlines various important strategies to make coconut farming more remunerative globally. It discusses work in all the major coconut growing countries and outlines suggestions for international cooperation. Research work on the crop is comparatively difficult because of its perennial nature, longevity, height, long juvenile phase, large sized nuts, cross pollination and seed propagation. As these special features necessitate greater investment of resources, time and land, it is all the more imperative that research is not duplicated and the information and experience becoming available around the world is shared so that it can be fully utilised. In this context periodic publications, compiling all the available information on coconut assume greater significance. This book is therefore of great value to researchers, students, extension workers, developmental agencies and progressive farmers.
Download or read book Diseases of Tropical Fruit Crops written by Randy C. Ploetz and published by CABI. This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation. Comprehensive information on diseases of the most important tropical fruit cropsChapters are devoted to a single or, in some cases, a related group of host plantsThe history, distribution, importance, symptoms, aetiology, epidemiology and management of diseases of each crop are described in detailThis book offers a comprehensive review of diseases of important tropical and some subtropical fruit crops. The history, distribution, importance, etiology, epidemiology and control of diseases of each host crop are covered, along with brief summaries on the taxonomy, origins and characteristics of each host. Additional information is given on the biology and pathology of the causal agents and on new advances that change or otherwise enhance our understanding of the nature and cause of these diseases. Plant pathologists, plantation and nursery managers, lecturers and those who are involved in tropical agriculture and horticulture will find this an essential reference.
Download or read book Manual of Agricultural Nematology written by William R. Nickle and published by CRC Press. This book was released on 2020-12-17 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nickle (Beltsille Agricultural Research Center of the USDA) has engaged 29 internationally known experts to replace the classic work of I.N. Filipjev (1934) and its translated revision (Schuurmans Stekhoven, Jr., 1941) with a modern work taking note of 188 additional genera, and 4,650 more species.
Download or read book Plant Parasitic Nematodes in Subtropical and Tropical Agriculture 3rd Edition written by Richard A Sikora and published by CABI. This book was released on 2018-08-10 with total page 901 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering all aspects of practical plant nematology in subtropical and tropical agriculture, the third edition of this definitive global reference work is fully revised and in full colour throughout. It covers the presence, distribution, symptomology and management of all economically important plant parasitic nematodes damaging the world's major food and cash crops. This includes: rice, cereals, solanum and sweet potatoes (and other root and tuber crops), food legumes, vegetables, peanut, citrus, fruit tree crops, coconut and other palms, coffee, cocoa, tea, bananas, sugarcane, tobacco, pineapple, cotton, other tropical fibres, spices and medicinal plants. New content for this edition includes: A chapter on nematode soil biodiversity and soil health; Reflections on the future impact of nematodes and nematology on food security; The importance of climate change, emerging threats, and new management technologies for large and small subsistence growers; Significant revisions to the IPM chapter and chapters on vegetables, citrus, legumes, tuber crops, cotton, peanut and banana where major advances in nematode management have occurred. This book is highly illustrated, with up-to-date practical guidance on methods of extraction, processing and diagnosing of different plant and soil nematodes and on integrated pest management. It remains an invaluable resource for those studying and working in the area of crop protection.
Download or read book FAO IBPGR Technical Guidelines for the Safe Movement of Coconut Germplasm written by Food and Agriculture Organization of the United Nations and published by Bioversity International. This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Parasitic Nematodes written by William Mai and published by Cornell University Press. This book was released on 2018-09-05 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formerly titled Plant-Parasitic Nematodes: A Pictorial Key to Genera, this volume has been the standard work on plant disease around the globe. Now in its fifth edition, it remains the fundamental reference for students as well as for diagnosticians—a usable, comprehensive key to plant-parasitic nematodes and the only guide to feature both photographs and drawings. Accompanied by full-page plates, the book offers descriptions of 68 genera, including most that have one or more species known to be plant parasites. The bibliography of approximately 2,500 entries on the taxonomy and morphology of nematode genera is one of the fullest on this subject. For the present edition, the authors have made revisions throughout and have added references to more than two hundred genera not previously included. An updated taxonomy, glossary, and an index are also provided. William F. Mai is Liberty Hyde Bailey Emeritus professor, Peter G. Mullin is Coordinator of Laboratory Instruction, and Howard H. Lyon is Biological Photographer (retired) in the Department of Plant Pathology, Cornell University.
Download or read book Zeitschrift f r angewandte Entomologie written by and published by . This book was released on 1981 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nematodes of Tropical Crops written by John Edwin Peachey and published by CABI Publishing. This book was released on 1969 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Ring Disease of Cocos Nucifera L Caused by Rhadinaphelenehus Cocophilus written by C G. Dean and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Diseases written by Gopal Swarup and published by . This book was released on 1989 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematology, As An Independent Discipline Of Plant Protection Is Quite Young. Organised Research Was Started About 50 Years Back With Netherlands And U.K. Amongst The European Countries And The Usa Taking In The Lead. With More And More Training Imparted To The Young Scientists, Interested In This Branch Of Science, New Disease Problems Came To Be Recognized. The Golden Nematode Of Potato, The Stem And Bulb Eelworm On Ornamentals As Well As Some Other Important Crops In Europe, The Root-Knot Nematodes In The Vegetable Crops, The Molya Disease Of Wheat And Barley In India, The Burrowing Nematode On Citrus And Banana Are Some Of The Well Known Disease Problems All Over The World. Several Disease Problems Still Remain Unrecognized Or Have Not Been Able To Attract Attentions Because Of The Uneconomic Plants Being Attacked By Them Presently. The Subterranean Nature Of Most Of The Plant Parasitic Nematodes, Their Microscopic Size, Slow And Debilitating Type Of Disease Expression Rather Than A Killing Effect On The Attacked Plants Are Some Of The Important Reasons Which Have Precluded Any Sustained Attentions From The Farmers And The Administrators. Additionally, The Plants Are Rarely Subject To Association With A Single Pathogenic Organism. The Nematodes May Act As Initiators Also For Other So Borne Fungal Diseases. The Total Disease Picture, Therefore, Necessitates A Thorough Understanding Of The Influencing Factors Of The Various Organisms In The Symptom Expression Of The Diseases.The Present Book Brings Forward, At One Place, The Informations Generated Through The Years On The Various Disease Problems Present In The World. A Brief Account On The Morphology And Biology Of The Nematodes Has Been Given Also For A Comprehensive Understanding Of The Nematodes And The Diseases Caused By Them.
Download or read book Pictorial Key to Genera of Plant parasitic Nematodes written by W. F. Mai and published by Comstock Publishing. This book was released on 1975 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two natural classifications of tylenchida and a part of dorylaimida. Key to genera of plant-parasitic nematodes (without pictures). Key to genera of plant-parasitic nematodes (with pictures). Glossary of nematological terms.
Download or read book Handbook of Invasive Plant Parasitic Nematodes written by Ziaul Haque and published by CABI. This book was released on 2021-09-01 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant parasitic nematodes are major pests of agricultural crops and cause huge monetary losses. There is a very high risk of spread of plant-parasitic nematodes from one country to another, with the movement of plants and planting materials such as seeds, bulbs, corms, suckers, tubers, rhizomes, rooted plants, nursery stock and cut flowers. In view of the large quantities and the wide variety of materials being imported and exported, it is important to assess the status of invasive nematodes and their quarantine importance in relation to agricultural trade. This book contains information on around 100 invasive nematodes and their potential threat in different countries. Each nematode entry includes information on authentic identification, geographical distribution, risk of introduction, host ranges, symptoms, biology, ecology, planting material liable to carry the nematode(s), nematode vectors, chance of establishment, likely impact, and phytosanitary measures. There are detailed accounts of diagnosis procedures including sampling, isolation, detection and identification of nematodes based on morphological and molecular characters. The book offers a global perspective on invasive plant-parasitic nematodes and useful for practitioners, professionals, scientists, researchers, students, and government officials working in plant quarantine and biosecurity.
Download or read book First International Symposium on Ornamental Palms written by Maria Esmeralda Soares Payão Demattê and published by . This book was released on 1994 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
