3A Turfgrass Pest Management Study Guide Questions
with Answers (100% Correct Answers)
Varieties of grass containing endophyte fungi are an example of:
Answer: Plant resistance.
Raking, thatch removal and aeration are examples of: Answer:
Cultural controls.
Hand removal, traps, barriers and repellents are examples of: Answer:
Mechanical and physical controls.
Example of a turfgrass disease that can be managed with hand
removal techniques: Answer: Slime mold.
Turf cannot at the same time benefit from biological control methods
and be pest free because: Answer: There must be a low level of pest or
prey insects for the predators to feed on.
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Why is it important to use both short term suppression and long term
maintenance tactics in pest management? Answer: Usually offers a
quick fix, but the pest population will rebuild. Maintenance must be
used to reduce pest populations permanently.
How can you help maintain existing populations of beneficial
organisms in a turf stand? Answer: By making pesticide applications
only when needed.
What is the most commonly used microbial insecticide? On what insect
larvae is it effective? Answer: Bacillus thuringiensis, or Bt, used to
control caterpillars.
Are microbial insecticides best used for short or long term suppression
of pest populations? Answer: Long term. Microbial insecticides are
slower acting and do not kill all of the pests at once, which allows
there to be food for other beneficial organisms.
Ways to classify pesticides: Answer: Types of pests
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Pesticide chemistry
Mode of action
Pesticide formulation.
Benefits of systemic herbicides: Answer: Superior in treating
persistent perennial weeds, kills both above ground and below ground
parts of plant.
Benefits of broad spectrum pesticides: Answer: Can be used to control
several pests, but more likely to be hazardous to non target organisms.
Benefits of residual pesticides: Answer: Good for use when the goal is
to reduce the number of applications required to control persistent
pests.
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Benefits of contact herbicides: Answer: Does not kill the underground
parts of plant.
Basic principles of managing pests in turfgrass: Answer: Produce
healthy plants that can reduce or better tolerate pest attack
Identify what is damaging the turf
Expect some pests and tolerate some damage
Using pesticides as a last resort.
Steps of IPM for turfgrass: Answer: Detect pest
Identify pest
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