Which of the following is NOT a biotic disease agent?

Study for the Maryland Pesticide Applicator Category 3 test. Prepare with flashcards and multiple-choice questions, complete with hints and explanations. Get exam-ready now!

Multiple Choice

Which of the following is NOT a biotic disease agent?

Explanation:
Biotic disease agents are living organisms that cause disease in plants. Fungi, bacteria, and nematodes are all living pathogens that can infect turf and lead to disease symptoms. Water stress is an abiotic condition—it results from environmental factors like drought or improper irrigation and causes physiological damage rather than disease caused by a living organism. Because it’s not a living pathogen, it is not a biotic disease agent. Sometimes water stress can make plants more susceptible to infections, but the stress itself isn’t a pathogen.

Biotic disease agents are living organisms that cause disease in plants. Fungi, bacteria, and nematodes are all living pathogens that can infect turf and lead to disease symptoms. Water stress is an abiotic condition—it results from environmental factors like drought or improper irrigation and causes physiological damage rather than disease caused by a living organism. Because it’s not a living pathogen, it is not a biotic disease agent. Sometimes water stress can make plants more susceptible to infections, but the stress itself isn’t a pathogen.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy