Which pests are known to be vectors for virus transmission?

Aphids and whiteflies are recognized as significant vectors for virus transmission, particularly in the context of agricultural pests. These insects are capable of acquiring plant viruses while feeding on infected plants and can subsequently transmit those viruses to healthy plants as they continue to feed. This process typically occurs when the insects probe plant tissues with their mouthparts to extract sap.

Aphids, for instance, are adept at transmitting a wide variety of viruses, including those affecting crops like potatoes and vegetables. Similarly, whiteflies are notorious for carrying viruses that can severely impact plant health and crop yields, particularly in greenhouse settings where they thrive. Understanding the role of these specific pests as vectors is crucial for effective pest management and disease control strategies in agriculture.

The other options include pests that do not typically function as virus vectors; instead, they may cause harm through feeding or other means without the ability to transfer viruses to plants effectively.