Technical Terms in Plant Pathology

  Technical Terms in Plant Pathology

Epidemic Disease : If disease spread over large area and causing considerable loss to the crop plant. Eg: Guava Wilt, Apple Scab, Bacterial Blight of rice.

Endemic Disease: When disease is more or less constantly present from year to year in moderate to severe form in a particular part of a country or state is called endemic disease Eg; Early blight of Potato.

Pandemic: Epidemic is spread too many country many time at the continental level is called pandemic eg. Yellow rust of wheat.

Sporadic Disease: Occur at very irregular intervals and location. Eg: Greet ear disease of  Bajra.

Compound interest Pathogen: When pathogen complete several life cycle in a crop season is called compound interest disease. Eg. Late blight of potato, Rice Blast, Wheat Rust, Major epidemic is caused by compound interest disease.

Simple or Single Interest Pathogen: When a pathogen complete only one life cycle in a crop season is called single interest disease. Eg: Lose smut of wheat

Symptoms : Host + Pathogen + Environment 

Parasite: It is a living organism depending on host for its nutrition 

Pathogenicity : This is the ability of pathogen to interfere with one or more function of the host and finally lead for the disease development.

Saprophyte : They are those who derive their nutrition from dad organic matter by enzymatic degradation of substrate.

Facultative parasite : Parasite which lives generally on the dead organic matter but occasionally becomes parasite. Eg. Mucor