Page 8 - Weed Survey Report for Irrigated FieldsA

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CONTENTS

Part I

INTRODUCTION

History of Weed Surveys in Alberta .........................................................................................1

The 2009 Alberta Weed Survey Project.....................................................................................2

Part II

DESCRIPTION OF SURVEYED AREA

Irrigation Districts ......................................................................................................................4

Ecoregions .................................................................................................................................6

Ecodistricts.................................................................................................................................7

Part III

METHODOLOGY

Crop Selection............................................................................................................................9

Stratification of Sites..................................................................................................................9

Random Site Selection ............................................................................................................11

Field Survey Personnel and Orientation Sessions ...................................................................12

Timing of Weed Counts ..........................................................................................................12

Weed Counts in Fields ............................................................................................................12

Weed Species ..........................................................................................................................13

Data Analysis ..........................................................................................................................15

Guide to the Use of the Field Summary Tables ......................................................................16

Limitations, Constraints and Biases .........................................................................................17

Part IV

FIELD SURVEY SUMMARY TABLES

List of Summary Tables in Part IV ..........................................................................................19

Province ...................................................................................................................................23

Ecoregion .................................................................................................................................39

Ecodistrict ................................................................................................................................64

County......................................................................................................................................99

Irrigation District ...................................................................................................................132

Part V

SUMMARY

.................................................................................................................................167

Part VI

DISTRIBUTION MAPS

List of Distribution Maps.......................................................................................................171

Maps for Selected Species .....................................................................................................173