Pest Identification & Control Techniques Flashcards
7 cards from real CPA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pest Identification & Control Techniques flashcards as text
A citrus grower observes bumpy, immobile encrustations on branches that produce honeydew and sooty mold. The pest is most likely:
Answer: Armored or soft scale insects
Scale insects are immobile pests that attach to plant surfaces; soft scales excrete honeydew that promotes sooty mold growth on leaves and stems.
Which of the following is an example of a mechanical pest control method?
Answer: Installing row covers to exclude insect pests
Row covers are a mechanical exclusion method that physically prevents insect pests from reaching plants without the use of pesticides or biological agents.
When identifying weeds in a pesticide applicator exam context, dicot (broadleaf) weeds are distinguished from monocot (grassy) weeds by:
Answer: Dicots have net-veined leaves, two seed leaves, and taproots
Dicotyledonous weeds have net-veined leaves, two embryonic seed leaves (cotyledons), and often a taproot system, distinguishing them from monocot grasses.
A soybean field shows bronzing and stippling on leaves with populations of tiny, fast-moving insects. The most likely pest is:
Answer: Two-spotted spider mite
Two-spotted spider mites cause stippling and bronzing by piercing leaf cells to feed, and populations explode rapidly during hot, dry conditions.
Which statement best describes the concept of pest resistance management in pesticide programs?
Answer: Rotating pesticides with different modes of action to prevent selection for resistance
Rotating pesticides with different modes of action prevents the rapid selection of resistant individuals and delays or prevents resistance development in pest populations.
Fire ants (Solenopsis invicta) are best identified by which combination of characteristics?
Answer: Two-node petiole, reddish-brown color, and aggressive stinging behavior
Fire ants have a two-segmented petiole, reddish-brown coloration, and are notoriously aggressive, delivering painful stings when their mound is disturbed.
What does the term 'host range' mean in the context of pest identification and biological control?
Answer: The variety of plant or animal species a pest or biocontrol agent can attack or feed on
Host range refers to the variety of plant or animal species that a pest can feed on or infect, which is critical information for selecting appropriate biocontrol agents.