Le vieil adage ‘ Vous ne pouvez ’ pas résoudre un problème si vous ’ ne savez pas que vous en avez un ’ sous-tend la science fondamentale du diagnostic des maladies des plantes et des carences en nutriments. Pendant des années, les agriculteurs et les scientifiques ont travaillé ensemble pour identifier un ensemble d'indices visuels qui peuvent être utilisés pour déterminer/identifier les maladies et les carences en nutriments dans une variété de cultures agronomiques. Ces indices et symptômes peuvent être extrêmement utiles, surtout lorsque les méthodes d'analyse du sol et des tissus végétaux ne sont ni réalisables ni disponibles.



  1. This article is from ECHO Asia Note #29 The old adage ‘You can’t fix a problem if you don’t know you have one’ underpins the basic science of diagnosing plant nutrient deficiencies. For years, farmers and scientists have worked together to identify a set of visual clues that can be used to...
  2. 20/04/2001 Soil acidity, or low pH, limits plant growth in many parts of the world. Although low pH can harm plants in many ways, this article will deal only with one of these factors, aluminum (Al) toxicity.Al is the third most abundant element on the earth (after oxygen and silicon), and the most abundant...
  3. Ressource principale
    01/01/2002 L’acidification du sol est un processus naturel ayant d'importants effets sur la croissance des plantes. À mesure que le sol devient de plus en plus acide, particulièrement lorsque le pH descend en-dessous de 4,5, il est de plus en plus difficile de produire des cultures vivrières. Lorsque le pH...
  4. Ressource principale OISAT is an information management concept on non-chemical pest management in the tropics comprising two components: OISATInfo is a web-based information tool offering trainers, extension workers and farmers a quick access to up-to-date information for their work and for organizing agricultural...
  5. Section I provides a basis for the biochemical and physiological approaches presented in the subsequent sections. Section II deals with the major classes of plant growth substances and their role in the internal control of development. Section III deals with the various aspects of environmental...
  6. Abstract, International Clinical Pathology Journal, 2017 SK Thind, Punjab Agricultural University, India India is the second largest producer of fruits in the world, contributing 10% of the total production. But, the total production is quite below (45.496million tons from 37.96million hectares)...
  7. This Maize (Corn) Disease Compendium provides an essential, general and practical reference for plant pathologists and other agriculturists engaged in plant pathological work in the field or diagnostic laboratory. It is designed especially for the extension or advisory plant pathologist. The...
  8. 01/01/1959 This book includes factual description of all the main groups of vascular plants. It will dispaly the procedures, general principles, and objectives of comparative morphology. (the branch of biology that deals with the form of living organisms, and with relationships between their structures.)
  9. This group pageexists so that individuals involved in Plant Healtharound the world can connect. We encourage you to share the challenges you face in your endeavors, discuss lessons and techniques learned through your experiences, and share your story!
  10. 06/01/1991 This bulletin resulted from a 1990 symposium in Kansas City Missouri. Itshould be useful to research scientists, extension personnel, and workers in the corn industry--growers, distributors, and processors. It is a summary of cooperative research efforts to serve the public by keepin aflatoxin...
  11. Description, picture, and symptoms of foliage plant diseases are shown on this set of cards by University of Florida Institute of Food and Agricultural Sciences.
  12. Does unsafe food threaten public health in your country? Is the food you eat at risk of contamination? Or, perhaps, has your shipment of agricultural goods been held at the port of entry because of a potential cargo pest infestation? The sanitary and phytosanitary (SPS) plant health distance...
  13. Abstract, International Journal of Economic Plants, 2019 The crown rot disease was recorded for the first time on strawberry Field from Hill Millet Research Station, Waghai, Gujarat state of India during 2017-2018. The diseased plants showed drying from the edge of the leaves. Dark lesion appears...
  14. This book has two major purposes: to develop an understanding of the important principles underlying the practices used in the culture of crop plants and to develop the ability to apply these principles in production strategies. 2 Copies
  15. Abstract, PSU Ag Science Magazine, 2019 Scientists are trying to unlock the secrets of stress response. If they succeed, crops may be designed to deal with a warming planet. Understanding how plants react to environmental stress and how we humans can enhance or direct their responses is a key...
  16. This book is intended as a text or reference book for undergraduate students at the junior-senior level in the plant sciences, primarily in colleges of agriculture. The material in several of the chapters is comprehensive enought to meet the requirements of instruction at the graduate level. The...
  17. The NPDN was established in 2002 in response to the need to enhance agricultural security through protecting health and productivity of plants in agricultural and natural ecosystems in the U.S. With support from the USDA-NIFA and through the collective efforts of many individuals representing...
  18. Growing vegetables provides fresh produce for the family while giving us full control over what is used in the care and maintenance while growing the vegetables. Pest control is important in vegetable gardens to keep hungry insects from feasting on the plants. However, pesticides often contain...
  19. 15/06/1993 Amazon.com Description This book discusses the role of essential nutrients in relation to nearly two dozen crops. Use the book's 307 color photographs to diagnose disorders in the field. The accompanying text explains symptoms in detail, with information provided by 31 crop experts. Covers the...
  20. Ressource principale 19/01/1975 Compendium of Soybean Diseases, 4th Edition combines the finest qualities of best-selling previous editions with updated and new sections, making it a thorough, authoritative and practical reference. Revisions to the 4th Edition include five new sections on different leaf spot diseases, an...
  21. Plantwise is a global programme led byCABI, which works to help farmers lose less of what they grow to plant health problems. Working closely with national agricultural advisory services we establish and support sustainable networks ofplant clinics, run bytrained plant doctors, where farmers can...
  22. Mobile Assay’s customizable product and services offer a comprehensive solution for all your diagnostic needs. MIRRORis a versatile quantitative RDT reader application for android and iOs smartphones. Whether your concern is food safety, animal safety, or point-of-care diagnostics for health,...
  23. Plantnutritionistsacross the globe are on their toes to find ways and means to identify nutrient constraints as early in standing crop season as possible while dealing with perennial crops. Exciting progress has been made over the years, and accordingly, the basis of nutrient management strategy...
  24. The NPDN was established in 2002 in response to the need to enhance agricultural security through protecting health and productivity of plants in agricultural and natural ecosystems in the U.S. With support from the USDA-NIFA and through the collective efforts of many individuals representing...
  25. Abstract -Journal of Plant Nutrition, 2006 On-farm studies were conducted during 2002–2004 to determine fertility status, including sulfur (S) and micronutrients, and crop response to fertilization on farmers’ fields in the semi-arid zone of India. Nine hundred-twenty four soil samples taken from...
  26. Ressource principale 20/01/2012 Plant Pathology, Third Edition, provides an introduction to the fundamental concepts of plant pathology, incorporating important new developments in the field. The present volume also follows closely the organization and format of the Second Edition. It includes two new chapters, ""Plant Disease...
  27. Penn State Ag Extension information on plant disease identification and control
  28. Critical Reviews in Plant Sciencesfocuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics,...
  29. Journal of Plant Pathology & Microbiology (JPPM), a broad-based journal was founded on two key tenets: To publish the most exciting researches with respect to the subjects of Plant Pathology & Microbiology. Secondly, to provide a rapid turn-around time possible for reviewing and...
  30. Journal of Integrated Pest Managementis an open access, peer-reviewed, extension journal covering the field of integrated pest management. The Editors-in-Chief are Dr. Marlin E. Rice (formerly with Iowa State University) and Dr. Kevin L. Steffey (formerly with the University of Illinois). The...
  31. The Official Journal of theInternational Association for the Plant Protection Sciences The Editors ofCrop Protectionespecially welcome papers describing an interdisciplinary approach showing how differentcontrol strategiescan be integrated into practicalpest managementprograms, covering high and...
  32. 08/02/2018 Speaker Bio: Marites A. Alimurung is from La Trinidad, Benguet. She is one of the researchers at Baguio National Crop Research Development and Production Support Center (BNCRDPSC) at the Bureau of Plant Industry of the Department of Agriculture, Philippines. She is currently involved in organic...
  33. 08/02/2018 Speaker Bio: Rhonda M. Oloan is from Bontoc, Mountain Province. She is one of the Researchers At Baguio National Crop Research Development and Production Support Center (BNCRDPSC) at the Bureau of Plant Industry of the Department of Agriculture, Philippines. She is currently involve in organic...
  34. The Leaf Doctor performs quantitative assessments for plant diseases on plant organs such as leaves. Users collect or submit photographs of diseased plant organs and calculate the percentage of diseased tissue. Through a user’s touching of the device screen, the algorithm employs user-specified...
  35. A comprehensive collection of crop nutrient deficiency photos. A range of nutrient deficiency examples are provided for 14 prominent crops. Text and diagrammatic descriptions are also provided. alfalfa, banana, barley, canola, citrus, cotton, maize, oil palm, potato, rice, sorghum, soybean,...
  36. Before discussing the key ecological principles and approaches to soil management, let’s first see how amazing plants really are. They use a variety of systems to defend themselves from attack by insects and diseases. Sometimes they can just outgrow a small pest problem by putting out new root or...
  37. Abstract, There are various ways in which plant nutrient supply or concentration affects plant diseases and pests. The supply of nutrients changes the resistance of plants to pathogens and pests by altering growth and tissue composition (e.g., concentration of soluble compounds or defence...
  38. A plant pathologist or a student taking plant pathology is often asked by friends or associates the following questions. What is wrong with my plant; followed by, what can I do to get rid of the problem? It may be too late to help the specific plant when the question is asked, but proper...
  39. Abstract, ResearchGate, 2017 Plant diseases cause substantial losses in yield of plants, leading to huge economic losses. Accurate identification and diagnosis of plant diseases are very important in the era of climate change and globalization for food security as well as prevention of the spread...
  40. In the preceding section on identifying plant health problems (http://edis.ifas.ufl.edu/MG441), we explained how to first identify problems related to environmental factors or caused by insects. In this section, we will concentrate on diagnosing plant diseases caused by pathogenic microorganisms,...
  41. Abstract,University of Tehran, 2017 Nowadays, hundreds of plant clinics are available for smallholder farmers especially in developing and less-developed countries in order to improve the yield and quality of agricultural products. Several investigations have been carried out to study the role of...
  42. Beginning master gardeners can be intimidated by the daunting task of correctly diagnosing the cause of a client's plant health problem. However, with experience and the development of a systematic approach to diagnosis, master gardeners will become confident and successful plant problem...
  43. Unsafe food threatens public health and undermines food security at local, regional and global levels. The benefits of extensive development activities targeting food insecurity are drained away when food products are contaminated. Microbial and chemical contaminants are of particular concern, as...
  44. Biological control of the cassava mealybug involved the classical approach, from foreignexploration, biological studies, mass rearing, and release to monitoring and impact studies. The special attention given to quanfity observations on all trophic levels in a holistic approach transformed the...
  45. AccessAgriculture Training Video La mosaïque du manioc est une importante maladie du manioc qui diminue les rendements. Elle se reconnaît par les feuilles des plantes qui présentent des tâches qui vont du vert-clair au jaune. La maladie est donnée à la plante par la mouche blanche. Cette maladie...
  46. AccessAgriculture Training Video Le faux charbon provoque un aspect crayeux des grains de riz, et affecte la mouture, la cuisson et la consommation.En appliquant une série de pratiques agroécologiques, vous pouvez éviter l'apparition de maladies dans votre culture de riz. Langues disponibles...
  47. AccessAgriculture Training Video La plupart des agriculteurs confondent la maladie de la pourriture noire avec le mildiou. Alors que le mildiou commence par des points violacés irréguliers sur les feuilles, la pourriture noire commence sous forme de petites zones jaune brun en forme de V sur les...
  48. AccessAgriculture Training Video Le mildiou est causé par des moisissures qui survivent dans le sol et par les résidus de cultures infectées. Inspectez votre champ tous les jours. Si vous voyez des plantes malades, coupez les parties malades et brûlez-les. Ne mettez jamais des parties de plantes...
  49. AccessAgriculture Training Video Les maladies de la rouille se propagent par le vent et peuvent rapidement se développer par temps frais et humide. Pour savoir si votre culture est affectée par la rouille, frottez sur la partie infectée de la plante pour voir si une poudre brune ou noire colle à...
  50. AccessAgriculture Training Video Des producteurs en Inde nous montrent comment la maladie apparaît tout d’about au bout de la feuille. Finalement, la plante s’assèche. Des méthodes non-chimiques peuvent combattre cette maladie. Langues disponibles Anglais Bambara Birman Chichewa / Nyanja Dioula...
  51. 19/01/1996 This publication lists the pathogens and locations where they are distributed for chickpeas and pigeonpeas.
  52. 20/01/2012 This bulletin provides information on the causal agents, distribution, economic imporance, symptons, epidemiology, and management of major diseases of pigeonpea. The test is supplemented with color photographs of disease symptoms and a diagnostic key is included to facilitate identification....