Aphids are identified by their what body shape?

Aphids are identified by their what body shape?

• A. Pear-shaped body
• B. White waxy coating and filaments
• C. Brown rot with fuzzy gray spores
• D. White powdery growth

Answer: (A)

Identifying aphids hinges on recognizing their distinctive body shape. They are typically pear-shaped, with a rounded abdomen that tapers toward the head, giving a compact, soft-bodied appearance. This shape holds true for both winged and wingless forms and is a reliable clue when you inspect plants in a greenhouse. Other signs described in the options relate to different organisms or problems: a white waxy coating and filaments are more typical of woolly aphids or mealybugs, brown rot with fuzzy gray spores indicates a fungal disease, and white powdery growth points to powdery mildew. So the pear-shaped body best identifies aphids.

Identifying aphids hinges on recognizing their distinctive body shape. They are typically pear-shaped, with a rounded abdomen that tapers toward the head, giving a compact, soft-bodied appearance. This shape holds true for both winged and wingless forms and is a reliable clue when you inspect plants in a greenhouse. Other signs described in the options relate to different organisms or problems: a white waxy coating and filaments are more typical of woolly aphids or mealybugs, brown rot with fuzzy gray spores indicates a fungal disease, and white powdery growth points to powdery mildew. So the pear-shaped body best identifies aphids.