Certified Arborist Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

True or False: The pathogens that cause disease are primarily bacteria.

True

False

The assertion that the pathogens causing disease are primarily bacteria is false because plant diseases can also be caused by various other types of pathogens, including fungi, viruses, and nematodes. While bacteria do play a significant role in some diseases, they are not the predominant cause of plant diseases overall. Fungi, for instance, are responsible for many common diseases in plants, such as rusts, molds, and blights. Viruses are notorious for causing systemic diseases, which can severely affect a plant's health but are fundamentally different from the diseases caused by bacterial pathogens. This multiplicity of organisms illustrates the complexity of plant pathology and indicates that while bacteria are important, they do not exclusively account for the majority of plant disease cases.

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Sometimes

Only in warm climates

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