Laboratory Exercise 18
Purpose: Economics of the nematode management decision process.
Note: Please bring laptop computers for Laboratory 19 on 12/5/12.
1. Powerpoint presentation and slides: Physical and cultural management of plant-parasitic nematodes.
2. Analyze soil suppressiveness experiment set up in Lab 17:
3. Nematodes of grapevines: PowerPoint presentation as an example for management of a nematode community.
The Soil Food Web: Powerpoint presentation on food web structure, function and management.
4. Discussion of management decisions and information delivery.
e. Seasonal multiplication rates - literature and experimentation, extrapolate.
f. Decline rates - winter and non-host - literature and experiments.
g. Annual multiplication rates.
h. Control costs:
crop rotation, alternate crops - what is predominant species (key pest)?
resistant varieties - what is the predominant species (key pest)?
i. Steady-state population convergence.
j. Initial population assessment - reliability, variability, alternatives.
k. Economic analysis:
consider production costs
potential crop value
grower perception and management objective
l. Development of user-friendly software
expert systems protocols.
5. PowerPoint presentations:
Nematode damage thresholds.
7. Homework Assignments:
Review Laboratory 19 assignment and start planning your strategy.
Select...Management and Decision Support
Review: Principles of Nematode Management.
Tactics: (Various tactics listed)
Emerging Research Developments: (Various topics)
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Review current research on Nematode Management.
8. Use Nemabase2010 to review susceptibility and/or resistance of plants to different nematode species.
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