Powdery mildews are caused by which type of organism?

Prepare for the MDARD 3B Ornamental Pest Management Exam. Focus on questions and answers through flashcards and hints to improve your understanding. Gain the confidence you need to excel in your certification!

Multiple Choice

Powdery mildews are caused by which type of organism?

Explanation:
Powdery mildews are caused by several different genera of fungi. That white, powdery appearance on leaves and stems comes from the fungal spores produced on the surface by true fungi, not by bacteria, viruses, or nematodes. Bacteria are tiny prokaryotes, viruses are non-cellular infectious agents that need living cells to reproduce, and nematodes are microscopic worms; none of them create those powdery, superficial fungal growths you see on infected plants. Recognizing that powdery mildews are fungal informs management choices, such as fungicide options and cultural practices that reduce conditions favorable to fungal growth.

Powdery mildews are caused by several different genera of fungi. That white, powdery appearance on leaves and stems comes from the fungal spores produced on the surface by true fungi, not by bacteria, viruses, or nematodes. Bacteria are tiny prokaryotes, viruses are non-cellular infectious agents that need living cells to reproduce, and nematodes are microscopic worms; none of them create those powdery, superficial fungal growths you see on infected plants. Recognizing that powdery mildews are fungal informs management choices, such as fungicide options and cultural practices that reduce conditions favorable to fungal growth.

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