types of plant diseases pdf

A symptom of plant disease is a visible effect of disease on the plant. Plant pathology is related to most of the old and new sciences like biology, physics, chemistry, physiology, mathematics, genetics, soil science, biochemistry, biotechnology The diseases are responsible for direct monitory loss and material loss. Kentucky GROW Plant Diseases 6 . Some of the common plant pathogens are − Viruses. %PDF-1.5 %���� 1 0 obj <> endobj 3 0 obj <> endobj 4 0 obj <> stream Developing an IPM Program for Plant Diseases Figure 8-1: The plant disease triangle. Gram negative bacteria stain red or pink and Gram positive bacteria stain purple. A plant disease is defined as “anything that prevents a plant from performing to its maximum potential.” This definition is broad and includes Bacterial wilt Plant Disease. However, parasitic diseases are caused by contagious pathogens. 111 (Cr. Disease and disease transmission An enormous variety of organisms exist, including some which can survive and even develop in the body of people or animals. Plant disease is an impairment of the normal state of a plant that interrupts or modifies its vital functions. Many diseases and disorders can affect tomatoes during the growing season. !��_�>&��P�#*��J"��h7�}@�>�#z������T��[�!ǁ~��;�7����D��J.��LƗ�^$z��yry��Y2>C�4�SDO=A��S�1�G�����"�D�O�����M�3�=g� ����"����ۉz�ng㼖�R�[�n����n$���z�눮%�At �NQ�&���$���r�˨��T���b����B�r��TwѹD�m#:��β�Ng5�N#:5��:���p� ���a,O The various types of losses occur in the field, in storage or any time between sowing and consumption of produce. The biological agents that causing diseases to plants are known as pathogens. All three sides of the plant disease triangle must be present for disease to occur. This list will help you learn about common pests and diseases and how to identify t… However, some non-pathogenic diseases (in plants) may also occur when the pH value, moisture, humidity, soil, etc. Many plant diseases can quickly return if the dead plant matter isn’t properly disposed of. !��x�M�ԑ%E���;��r4�v�p�`��Y��K�Ĩ�FBn�R�a���B�E���Ԗ�Ώ�����Җ���JD� This page is designed to help identify some of the more common plant diseases and provides earth-friendly solutions (see organic fungicides) for combating them. etc. In fact, most fungal, bacterial and viral plant diseases are spread naturally by wind currents, rain, soil seeds, insects and other animals. Leaf wilting is a typical symptom of, wilt, caused by the fungal plant pathogens Verticillium albo-, Thermal and Nuclear Power Projects in India, Biggest, Smallest, Largest, Deepest & Highest in The ), Sorbiquets/Nicknames of Cities & States of India, Sorbiquets/Nicknames/Epithets of Places in the World, Famous Slogans/Quotes By Indian Freedom Fighters, Major Events or Timeline of Indian History, International Organisations (UNO, IMF etc. The dif… Two types of diseases. Diseases caused by Bacteria, Virus, Fungi etc. Fungi About 85% of plant diseases are caused by fungi: multi-celled microorganisms that may be seen without a Lawns can be attacked by various fungal diseases including brown patch, red thread, mildews, moulds, leaf spot, smuts and blights. Grapes, Cabbage, Cauliflower, Bajra, Mustard, Complete List of Ministers In Modi Govt. Symptoms may include a detectable change in color, shape or function of the plant as it responds to the pathogen. Like animals, plants also suffer from verities of diseases. The conditions that promote plant diseases also favor the development of fruit rots, both in the field and during handling and shipping. The main categories of microbes that cause plant diseases which are fungi, bacteria, viruses and nematodes. �GdP;�H�DÉr����- %� [B�M�,�L2F�A�NuiD�dL!J&J��D��x��#�%� ]�]�"2��D%I$4�~���E��OD?���R��}O�]8��m8�� ��&���K���J��!���>%�;? Disease Conducive Environment Susceptible Host Virulent Pathogen The Disease Triangle . Environmental factors are important in the development of plant diseases and determine whether the diseases become epidemic. Biotic diseases are caused by living organisms (e.g., fungi, bacteria, and viruses). plant and reduces its productivity or usefulness to man. Plant disease, an impairment of the normal state of a plant that interrrupts or modifies its vital functions.