Pest Identification and Management 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 and Management flashcards as text
A lawn exhibits irregular dead patches with grass roots severed at soil level. The most likely culprit is:
Answer: White grub (scarab larvae)
White grubs feed on turfgrass roots below the soil surface, severing them and creating irregular dead patches that can be lifted like loose carpet.
Fire ant mounds are typically found in which type of location?
Answer: Open, sunny areas such as lawns, fields, and roadsides
Red imported fire ants prefer open, warm, sunny environments and build mounds in turf, pastures, roadsides, and gardens.
Which of the following correctly describes the damage caused by thrips on ornamental plants?
Answer: Silver-streaked or bronzed foliage with tiny black fecal specks
Thrips rasp and suck plant cells leaving a characteristic silvery-bronze stippling and tiny dark fecal deposits on foliage and petals.
The grape berry moth overwinters primarily as:
Answer: Pupae in cocoons under loose bark or leaf litter
Grape berry moth overwinters as pupae in silken cocoons tucked under loose bark, in crevices, or in leaf litter on the vineyard floor.
Which tool is BEST suited for accurately counting small, mobile insects like aphids on leaf samples in the field?
Answer: 10x hand lens or jeweler's loupe
A 10x hand lens allows close examination of leaf samples to accurately count and identify small insects like aphids in the field.
In a degree-day model for insect pest management, what is the base temperature?
Answer: The minimum temperature below which pest development stops
The base temperature is the lower developmental threshold — the temperature below which a pest ceases to develop or accumulate heat units.
When inspecting stored grain for pest activity, which sign most strongly indicates an active weevil infestation?
Answer: Round exit holes in kernels and fine flour-like frass
Grain weevils develop inside kernels, and adult emergence creates characteristic round exit holes with fine powdery frass indicating an active, internal infestation.