Weed Management in Corn - University of Guelph

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Weedy Check 6 am 9 am Roundup Time of Day 12 pm 3 pm 6 pm 9 pm 12 am
Time of Day Summary – Herbicides Herbicide > 10% Difference % Pardner 7 out of 9 78 Liberty 7 out of 13 54 Atrazine 2 out of 4 50 Accent 2 out of 6 33 Distinct 2 out of 12 17 Roundup 1 out of 7 14
Page 1 and 2:
Weed Management in Corn Questions f
Page 3 and 4:
Visible Corn Injury (%) Fall Applic
Page 5 and 6:
Corn Yield (bu/ac) Fall Application
Page 7 and 8:
Question # 2 Is weed control reduce
Page 9 and 10:
Time in Solution Experiments 1. Her
Page 11 and 12:
Time in Solution (PRE) Converge Vel
Page 13 and 14:
Time in Solution (PRE) Yield (bu/ac
Page 15 and 16:
Primextra + Callisto - Sprayed Imme
Page 17 and 18: Time in Solution (PRE) Summary 1. W
Page 19 and 20: Time in Solution (POST) Distinct Ve
Page 21 and 22: Liberty - Sprayed Immediately
Page 23 and 24: Time in Solution (POST) Summary 1.
Page 25 and 26: No effect on weed control Crop Boos
Page 27 and 28: No effect on RR corn yield Crop Boo
Page 29 and 30: Question # 4 My corn is at the 8-10
Page 31 and 32: Late Herbicide Application in Corn
Page 33 and 34: Late Herbicide Application in Corn
Page 35 and 36: Question # 5 I heard about glyphosa
Page 37 and 38: Roundup Ready Corn Weed Management
Page 39 and 40: Roundup Ready Corn Roundup + Marksm
Page 41 and 42: Weed Control (%) Roundup Ready Corn
Page 45 and 46: Roundup LP Sikkema, UG Roundup LP S
Page 47 and 48: Roundup Ready Corn Conclusions 1. W
Page 49 and 50: Question # 6 When is the best time
Page 53 and 54: Roundup Ready Corn Roundup - Applic
Page 55 and 56: Question # 7 What is the effect of
Page 57 and 58: Visible Corn Injury (%) Glyphosate
Page 59 and 60: Corn Yield (bu/ac) Glyphosate Drift
Page 61 and 62: Question # 8 Does the time of day t
Page 63 and 64: Corn Yield (bu/ac) Time of Day 175
Page 65 and 66: Weedy Check 6 am 9 am Liberty Time
Page 67: Weed Control (%) 8 WAA Time of Day
Page 71 and 72: Time of Day Summary 1. Change in ef
Page 73 and 74: Time of Day Conclusions 2. The effe
Page 75 and 76: That’s confusing, now what do I d
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Weed Management in Corn - University of Guelph

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