Virginia Commercial Pesticide Applicators CORE Exam

How do mites damage plants?

1. They aid in photosynthesis

2. They suck plant juices and disfigure leaves

3. They enhance plant growth

4. They help in disease control

The correct answer is: They suck plant juices and disfigure leaves

Mites cause damage to plants primarily by feeding on their sap, which involves piercing the plant's cells and extracting the essential nutrients. This feeding behavior can lead to disfigurement of leaves, as the leaf tissue becomes damaged and may turn yellow or develop stippling or spots. Over time, significant mite infestations can cause wilting, stunted growth, and even plant decline or mortality if not managed effectively. Understanding this mechanism is crucial for recognizing the signs of mite damage and implementing appropriate control measures.