CDFA Pest Prevention Plant Regulation Practice Exam 2025 - Free Pest Prevention Practice Questions and Study Guide

Question: 1 / 400

Which of the following is a symptomless carrier of quick decline of citrus?

Navel Orange

Valencia orange

Meyer lemon

Meyer lemon is recognized as a symptomless carrier of certain citrus diseases, including quick decline. This means that while the Meyer lemon tree may host the pathogenic organisms responsible for quick decline, it typically does not show the visible symptoms associated with the disease. Since symptomless carriers can play a crucial role in the spread of diseases without displaying signs, they can contribute to the challenges faced in managing and preventing the spread of such diseases within citrus populations.

In the context of citrus trees, both navel and Valencia oranges can show symptoms if they become infected. Consequently, they are not classified as symptomless carriers. It's essential in pest management and disease control practices to identify symptomless carriers, as they can be reservoirs for diseases and lead to unintentional spread to other susceptible citrus varieties.

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None of the above

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