21 Insect Pathology

21 Insect Pathology - INSECT PATHOLOGY TFTD: Pathology...

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INSECT PATHOLOGY
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TFTD: Pathology Pathology. Noun. Etymology: Greek pathologia study of the emotions 1 : The study of the essential nature of diseases and especially of the structural and functional changes produced by them.
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Things get sick People, animals, bugs, plants all get sick – the study of disease is pathology The diagnosis and treatment of disease is medicine
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Arthropod Pathology Arthropod pathology is the study of the causes, symptoms, histology, physiology and population dynamics of the diseases of arthropods Microbial control is the use of pathogenic microorganisms to control insect pests
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Disease Diseases are divided into noninfectious and infectious types Noninfectious diseases are things like genetic or neurological disorders
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Infectious diseases Involves a pathogen, a host and the environment Disease Triangle: Virulent Pathogen Susceptible Host Conducive Environment
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Infectious disease Infectious diseases of insects are usually classed in terms of the type of pathogen involved o Thus, there are bacterial, fungal, viral, rickettsial, protozoan, and nematode diseases of insects
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Bacterial diseases May be grouped into categories: o non-spore forming (only pathogenic under certain circumstances) o spore-forming o crystalliferous, spore-forming
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Spore-forming The spore-forming bacteria form an endospore or thick-walled, resistant stage, which allows them to persist in dormant or quiescent conditions outside of their insect host
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21 Insect Pathology - INSECT PATHOLOGY TFTD: Pathology...

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