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THE POLLINATION ECOLOGY PROGRAM AT UI
1994 - 2000

Karen Strickler
Pollination Ecologist

These slide shows are modified and updated from a seminar given at UI in Aug. 1999.

CONTENTS: (Scroll down for details)

Part 1: Introduction and Background
Part 2: The Key Question
Part 3: How many bees are enough?
Part 4:The effect of pollinator behavior and abundance on alfalfa seed yields         
Part 5:Clipping to create a trapcrop for alfalfa IPM   
        short essay
        slide show  


Part 1:Introduction and Background

Introduction
Background: 
            A brief history of alfalfa seed production in the Northwest:
            Alfalfa flowers, pollination, and leafcutting bees
            Leafcutting bee management in the Northwest
Can Northwest growers raise a sustainable yield of bees?

Part 2: The Key Question

The key question: Are 40,000 bees per acre really necessary?
Flower production and pollination in Medicago sativa
The bottom line
A model of alfalfa pollination
Model insights

Part 3: How many bees are enough?

Economic analysis
How to tell if you have enough bees
Some additional implications for bee management

Part 4:
The effect of pollinator behavior and abundance on alfalfa seed yields

Part 5:
Clipping to create a trapcrop for alfalfa IPM

short essay

slide show

Alfalfa seed IPM 
Degree day accumulations for lygus
Materials and Methods
Results
Conclusions

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Revised July 21, 2000.
Copyright
2000, Karen Strickler. All rights reserved.