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Decision-making - Integrated Pest Management - Lecture Slides, Slides of Pest Management

The LNM Institute of Information Technology Pest Management

Main topics of this course are: Biocontrol Approaches, Decision Making, Disadvantages of Cultural Controls, EBPM Status, Enforced Crop Production Rules, Hybrid Sterility, IPM Evolution Continued, Regulatory Tactics, Resistance Categories. Key points of this lecture slides are: Decision-Making, Crucial, Credibility of Ipm, Reliability for Decision Tools, Pest Population Density, Reliability for Decision Tools, Minor Effects, Specific Technique

Typology: Slides

2012/2013

Uploaded on 08/31/2013

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Decision-making reliability is crucial

•Credibility of IPM depends on decisions being

correct

•Decisions have to be made with imperfect

information & much of the imperfection is in

monitoring data

•Every decision has a risk of being wrong

•Lesson: We must understand how frequently our

decisions are incorrect and if there is a bias for

overcontrol or undercontrol in our mistakes.

Partial preview of the text

Download Decision-making - Integrated Pest Management - Lecture Slides and more Slides Pest Management in PDF only on Docsity!

Decision-making reliability is crucial

Credibility of IPM depends on decisions being

correct

Decisions have to be made with imperfect

information & much of the imperfection is in

monitoring data

Every decision has a risk of being wrong
Lesson: We must understand how frequently our

decisions are incorrect and if there is a bias for

overcontrol or undercontrol in our mistakes.

Reliability for Decision Tools

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Say we sample at weekly intervals

Maximum Tolerable Level

Time (Weeks)

Pest Population Density

You have to make

decisions at each

sampling date

Maximum Tolerable Level

I Correct decision to control

II Incorrect decision to do nothing

III Correct decision to do nothing

IV Incorrect decision to control

Time (Weeks)

Pest Population Density

III

II

III

I

IV

III

Example: Find 15 pest individuals at first

sample, 20 on the second sample

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Time (Weeks)

Pest Population Density

III

II

III

I

IV

III

Example: Then, on the third week, we find

40 pest individuals

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Time (Weeks)

Pest Population Density

III

II

III

I

IV

III

Reliability for Decision Tools

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Reliability Depends on Several

Factors

Specific species being monitored
Sites (site selection is important)
Specific technique being used
Number of samples taken
- Number at each site & number of sites
Weather
Observer (Scout) – Scout training is emphasized
Other minor effects:
- Field size, location, & aspect
- Time of day (pests with diurnal activity)
- Field history

Decision-making - Integrated Pest Management - Lecture Slides, Slides of Pest Management

Related documents

Partial preview of the text

Download Decision-making - Integrated Pest Management - Lecture Slides and more Slides Pest Management in PDF only on Docsity!

Decision-making reliability is crucial

correct

information & much of the imperfection is in

monitoring data

decisions are incorrect and if there is a bias for

overcontrol or undercontrol in our mistakes.

Reliability for Decision Tools

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Max Tolerable Pest Pop.

Say we sample at weekly intervals

Maximum Tolerable Level

Maximum Tolerable Level

I Correct decision to control

II Incorrect decision to do nothing

III Correct decision to do nothing

IV Incorrect decision to control

III

III

II

III

I

IV

III

II^ I

III IV

III

III

II

III

I

IV

III

II^ I

III IV

III

III

II

III

I

IV

III

Reliability for Decision Tools

II^ I

III IV

Pest Population on One Sample Date

Pest Population on Next Sample Date

Max Tolerable Pest Pop.

Max Tolerable Pest Pop.

Reliability Depends on Several

Factors