Plant Pathology in Agriculture

 

                 Plant Pathology in Agriculture

Other name of plant pathology is Phytopathology. It is greek word which mean Phyton= Plant + Pathos= suffering+ Logos= to study/ knowledge. 

Plant Pathology is the branch of agricultural science, biology or botanical science, which basically deals with 3 things:- 

a. Etiology.

b. Resulting losses.

c. Management method of plant disease.

 

·         Main objective of Plant Pathology :-

1.       To study biotic, mesobiotic and abiotic causes of disorder or disease.

2.    To study the mechanism of disease development by pathogen.

3.    To study the plant- pathogen interaction with in the environment.

4.    To develop methods of management of these disease. 

Q. What is Pathogen?

Ans. A pathogen is ususally defined as a micro-organisms that causes or can cause disease. We have define a pathogen as a microbe that can cause damage in a host.

Q. What is Plant Pathology?

Ans. The word pathology has derived from from two greek words, pathos= suffering and logy= discourse or to speak. 

Plant pathology is an applied science concerned primarily with practical solution of disease in agriculture, horticulture and forestry. 

Now we discuss about agents of plant diseases 

Agents of Plant diseases are two types:-

Abiotic:-factor is a non-living part of an ecosystem that shape its environment. 

The macro-nutrients:- nitrogen(N), phosphorus(P), potassium(K) etc.

The micro-nutrients:- iron(Fe), boron(B), chlorine(Cl) etc. 

Biotic :-(infectious) diseases are developed owing to microbial infection. While most biotic plant diseases are caused by fungi (around 70% of them), other types of plant pathogens exist.