Illinois Field Crop Applicators
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, An Integrated Pest Management program is based upon - Answer
1.Scouting for pests-understanding pest biology 2.Environmental
information-growth stages of field crops
3.technology to prevent unacceptable thresholds of pest damage by
most econmomical means-economic threshold of insects, diseases or
weeds
4. Lowest possible risk to people , property, resources and
environment-socially acceptable control measures
When scouting, where in the field should one sample? - Answer
1.randomly-avoid borders rows or field edges
2.regularly scout at least 1x per week
what should be done if scouting detects an important pest but its
numbers do not reach the economic threshold? - Answer Do not
treat, but scout again after an appropriate time period
What is the number of pests that should be controlled to prevent
economic damage from occurring? - Answer economic threshold
injury = control
List factors that are considered in determining an economic injury level,
the number of pest where the value of crop loss from these pests
equals the cost of controlling them - Answer 1. number of pests or
estimate of the amount of damage
2. cost of various treatment options
3.expected yield
4.expected grain value
List 3 examples of economic thresholds for some insect pests - Answer
1. black cutworms-3% or more of plants are cut
2. bean leaf beetle-defoliation reaches 30% before bloom
TestExam|Actual Questions and Verified
Answers| Updated
https://www.stuvia.com/user/thinktrek
+1(305) 565-6365
, An Integrated Pest Management program is based upon - Answer
1.Scouting for pests-understanding pest biology 2.Environmental
information-growth stages of field crops
3.technology to prevent unacceptable thresholds of pest damage by
most econmomical means-economic threshold of insects, diseases or
weeds
4. Lowest possible risk to people , property, resources and
environment-socially acceptable control measures
When scouting, where in the field should one sample? - Answer
1.randomly-avoid borders rows or field edges
2.regularly scout at least 1x per week
what should be done if scouting detects an important pest but its
numbers do not reach the economic threshold? - Answer Do not
treat, but scout again after an appropriate time period
What is the number of pests that should be controlled to prevent
economic damage from occurring? - Answer economic threshold
injury = control
List factors that are considered in determining an economic injury level,
the number of pest where the value of crop loss from these pests
equals the cost of controlling them - Answer 1. number of pests or
estimate of the amount of damage
2. cost of various treatment options
3.expected yield
4.expected grain value
List 3 examples of economic thresholds for some insect pests - Answer
1. black cutworms-3% or more of plants are cut
2. bean leaf beetle-defoliation reaches 30% before bloom
