USU INTRO TO HORTICULTURE EXAM 3 REVIEW
Where does the food come from that you find in the grocery store? - ANSWER
What beneficial services do insects provide to agriculture? - ANSWERPollination
Feed on other insects
Breakdown/decay
How can insects be plant pests? - ANSWERDefoliation
Boring
Leaf mining
Root feeding
Sucking/piercing
Disease vector
What synchronizes insect generations/populations in temperate climates? Why does this not happen in
tropical climates? - ANSWERTemperature driven
in tropical their development is Asynchronous which means they all happen at the same time (no
synchronize)
What are the components of Integrated Pest Management? What is 'integrated' in IPM? - ANSWER
What is insect scouting? - ANSWER• Keystone of pest management
• Estimate current populations
, • Know damage thresholds
• Economic threshold/action threshold
• Economic injury level
Scouting procedures
• Sweep netting
• Catch boards
• Pheromone traps
How do pheromone traps work? What gender of insects are attracted to the traps? - ANSWER• Female
pheromone attracts male insects
• Count over time to see generations
• When counts exceed threshold, then control measures
What is a phenology model? What variable drives most models? - ANSWERPhenology models predict
time of events in an organism's development. Development of many organisms which cannot internally
regulate their own temperature, is dependent on temperatures to which they are exposed in the
environment.
Philosophy
No calendar spraying
Treat only to reduce a known population that is approaching the economic injury threshold
Use the least toxic and most specific control measure
Where does the food come from that you find in the grocery store? - ANSWER
What beneficial services do insects provide to agriculture? - ANSWERPollination
Feed on other insects
Breakdown/decay
How can insects be plant pests? - ANSWERDefoliation
Boring
Leaf mining
Root feeding
Sucking/piercing
Disease vector
What synchronizes insect generations/populations in temperate climates? Why does this not happen in
tropical climates? - ANSWERTemperature driven
in tropical their development is Asynchronous which means they all happen at the same time (no
synchronize)
What are the components of Integrated Pest Management? What is 'integrated' in IPM? - ANSWER
What is insect scouting? - ANSWER• Keystone of pest management
• Estimate current populations
, • Know damage thresholds
• Economic threshold/action threshold
• Economic injury level
Scouting procedures
• Sweep netting
• Catch boards
• Pheromone traps
How do pheromone traps work? What gender of insects are attracted to the traps? - ANSWER• Female
pheromone attracts male insects
• Count over time to see generations
• When counts exceed threshold, then control measures
What is a phenology model? What variable drives most models? - ANSWERPhenology models predict
time of events in an organism's development. Development of many organisms which cannot internally
regulate their own temperature, is dependent on temperatures to which they are exposed in the
environment.
Philosophy
No calendar spraying
Treat only to reduce a known population that is approaching the economic injury threshold
Use the least toxic and most specific control measure
