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Whitefly Life Cycle and Characteristics

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Questions and Answers

What is the primary reason why whiteflies are attracted to yellow surfaces?

Whiteflies are more visible to predators on yellow surfaces

The yellow color is a warning signal to other whiteflies

The yellow color is a visual cue for mating

Yellow is a natural color that resembles their food source (correct)

What is the primary mode of whitefly dispersal?

Strong flying ability

Human assistance

Wind dispersal

Plant movement (correct)

What is the primary consequence of honeydew excretion by whiteflies?

Reduced plant growth due to lack of water

Interference with photosynthesis and promotion of sooty mold growth (correct)

Increased plant vigor

Increased susceptibility to viral infections

What is the recommended method for inspecting plants for whiteflies?

Carefully inspecting each plant and, if necessary, quarantining it Signup and view all the answers

What is the primary consequence of a large whitefly infestation on plant growth?

Stunted growth and premature leaf drop Signup and view all the answers

What is the primary reason why repeated use of the same chemical can be detrimental in controlling whitefly populations?

It can lead to the development of resistance to pesticides Signup and view all the answers

What is the order that whiteflies, aphids, scales, and mealybugs belong to?

Hemiptera Signup and view all the answers

What is the typical color of eggs laid by whiteflies when they are first laid?

Yellow or white Signup and view all the answers

How long does it take for whiteflies to reach full development at 82⁰ F?

18 days Signup and view all the answers

What is the term for the final instar of the whitefly nymphal stage?

Pupa Signup and view all the answers

What is the preferred location for whiteflies to lay eggs?

Underside of leaves Signup and view all the answers

Why are whiteflies more likely to cause infestations in warmer climates?

Because they can complete multiple lifecycles per year in warmer temperatures Signup and view all the answers