Plant pathology refers to the science of detecting harmful diseases in plants or crops. Knowledge in plant pathology is applied all over the world in testing laboratories that is specifically equipped to perform tests on plants. One of the most robust and common detection techniques in plant pathology is the Elisa test. Upmarket plant pathology laboratories will also include molecular techniques in daily operation. Plant pathology is a very generous field. Plant pathologist mostly prefers studying pathogens on a specific crop or to concentrate on a specific disease. The knowledge of plant pathology enables a scientist or industry to test crops or plants for current and / or new diseases.