Question

The components necessary for a plant disease to occur are....?

Answer 1

Answer:

These three elements, pathogen, host, and environmental conditions, make up the disease triangle. The disease triangle is a concept that illustrates the importance of all three elements—just as there are three sides to a triangle, there are three critical factors necessary for disease to develop.

Explanation:

Hope it helps.....

Answer 2

The components which are necessary for plant disease to occur are the pathogen and the favourable condition.

Explanation:

• A disease can occur only a favourable condition is present for the pathogen to multiply within the body of the host.

• Hence only when the host is present in addition to the favourable conditions there is occurrence of a disease in the body of the plant. the favourable condition can be the amount of moisture and sunlight.

To know more about pathogens,

How do the mouth, nose, throat, and lungs fight against pathogens ...

https://brainly.in/question/9401343