Test One Flashcards
Explain cultural and give an example
Management techniques
Crop rotation
Name the five types of IPM controlles
Cultural Genetic Physical Biological Chemical
Genetic
Selecting the best species for the environment will provide some host plant resistance
Physical
Physically remove….vacuum plants
Biological
Introduce natural enemies ie fly predictors, ladybird Beatles
Chemical
Pesticides
Why was IPM created?
Economics
When are control cost justified?
When pest populations exceed the EIL
What is EIL?
Economic injury level
Bioeconomic method (3 elements)
1) economic damage
2) economic injury level
3) economic threshold
Economic damage
The amount of injury which will justify the costs of artificial controls
When does economic damage begin?
Economic damage begins at the point when the cost of damage = the cost of suppression
Damage boundary aka?
Damage threshold-the lowest level of injury that can be measured
Graph
Measurable loss/ damage boundary then economic loss/ gain threshold followed by economic damage
Economic threshold
The number of pests at which control action should be started to prevent an increasing pest population (injury) from reaching the economic injury level