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1B insect management Iowa questions and answers already solved
Question : Integrated Pest Management (IPM)
Correct answer: information-intensive, decision-making
process that identifies & reduces risks from pests & pest management strategies
Question : components of IPM
Correct answer: correct identification of pest, accurate
monitoring & measurement of the population, economic assessment of the damage & selection of environmentally sound management tactics
Question : characteristics which are important for
identification
Correct answer: order of the pest, special characteristics of the
mouth, legs & antennae & life cycle of the pest
Question : change in shape, form, and size during a pest's life
Correct answer: metamorphosis
Question : gradual metamorphosis
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Correct answer: insect hatches from the eggs & looks like a
miniature copy of the adult (grasshoppers, cockroaches, aphids)
Question : nymphs
Correct answer: juvenile forms-no wings, go through several
growing stages before growing to winged adults
Question : chemical control of insects that have a complete
life cycle should normally be aimed at
Correct answer: the larva stage
Question : piercing-sucking
Correct answer: is a major way insects feed
Question : which is the most insect specific method of
sampling for insects
Correct answer: pheromone trap (scent which draws in
specific insects)
Question : true about European corn borer
Correct answer: overwinter as a larvae
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Question : which is most persistent in soils: pyrethroid, carbonates, organophosphates, chelates
Correct answer: pyrethroids
Question : increases the potential for non-target crop injury
Correct answer: aerial application
Question : economic injury level (EIL)
Correct answer: the density of the pest population at which
the cost of control equals the amount of crop loss caused by the pest (# of insects that can be tolerated w/o economic loss)
Question : is cutworm damage more likely in a low-poorly
drained area, or high-well drained area?
Correct answer: low-poorly drained
Question : yellowish beetle, 9 mm long, 12 black spots on its
back. Feeds on the silks of the corn eats
Correct answer: southern corn footwork beetle
Question : lays eggs in waste areas near crop fields & the
nymphs move into the crop fields following hatching
Correct answer: grasshopper
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Question : insect damage can occur when insect ____
coincides w/ crop growth
Correct answer: activity
Question : types of crop damage by insects would generally
not include
Correct answer: plugging of the translocation system
Question : T/F Physical control is checking on a crop
regularly in a prescribed manner to determine the population levels & the extent of the damage
Correct answer: False
Question : Which pest, insects or weeds, easier to manage
using chemicals w/o damaging crop plants
Correct answer: insects
Question : chemical control of insects that have an incomplete
life cycle should be aimed at the ____ stage