Question

After hatching, the hatching of whitefly passes through:

• A. 2 nymphal instars
• B. 3 nymphal instars
• C. 4 nymphal instars
• D. 5 nymphal instars

Hint:

The crawler stage is the only mobile immature stage - once settled, whiteflies remain stationary until adulthood.

Answer 1

The Correct Option is A

Step 1: After hatching, the crawler is the first nymphal instar.
Step 2: It settles and moults into a sessile second nymphal instar.
Step 3: The insect then enters a non-feeding pupal stage, which is not counted as a nymphal instar, before becoming an adult.
Step 4: The correct answer is 2 nymphal instars.