What term describes intermingling patches of green and yellow on a leaf?

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Study for the WSDA Pest Control Operator exam. Use flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively for your certification!

Multiple Choice

What term describes intermingling patches of green and yellow on a leaf?

Explanation:
The pattern described is mosaic. Mosaic refers to a mottled leaf appearance with intermingling patches of green and yellow caused by a viral infection that disrupts chlorophyll production in some cells while others stay green. This patchwork is what sets mosaic apart from other conditions: chlorosis is generally yellowing that’s more uniform or widespread, not a distinct green-and-yellow mosaic; gall is abnormal plant growth; wilt is drooping due to vascular problems. So the term mosaic best captures the described leaf pattern.

The pattern described is mosaic. Mosaic refers to a mottled leaf appearance with intermingling patches of green and yellow caused by a viral infection that disrupts chlorophyll production in some cells while others stay green. This patchwork is what sets mosaic apart from other conditions: chlorosis is generally yellowing that’s more uniform or widespread, not a distinct green-and-yellow mosaic; gall is abnormal plant growth; wilt is drooping due to vascular problems. So the term mosaic best captures the described leaf pattern.

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