Herbicide Residue Drift Injury - Canola Council of Canada

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2 Table of Contents Herbicide Residue Injury Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Factors Affecting Herbicide Carryover .............................. 4 Field Scouting. ................................................ 10 Symptoms Similar to Herbicide Carryover Injury ...................... 12 Group 2 Residue Symptoms on Cotyledons .......................... 16 Group 2 Residue Symptoms on True Leaves. ......................... 18 Group 2 Residue Symptoms on Mature Plants ........................ 28 Residual Effects of Group 4 Herbicides. ............................. 30 Residual Effects of Group 5 and 14 Herbicides ........................ 32 Conclusion ................................................... 33 Chemical vs. Plant Bioassay Testing ................................ 34
Foliar Herbicide Injury Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Effects of Foliar-Applied Group 2 Herbicides ......................... 38 Sulfosulfuron (Sundance) ...................................... 40 Imazethapyr and Imazamox (Odyssey). ........................... 48 Effects of Foliar-Applied Group 4 Herbicides ......................... 52 2,4-D Ester 600 and MCPA Amine 40 .............................. 54 Effects of Foliar-Applied Group 5 Herbicides ......................... 58 Effects of Foliar-Applied Group 6 Herbicides ......................... 59 Effects of Foliar-Applied Group 7 Herbicides ......................... 60 Effects of Foliar-Applied Group 9 Glyphosate (Roundup Transorb) ...... 61 Effects of Foliar-Applied Group 10 Glufosinate Ammonium (Liberty) .... 62 Effects of Foliar-Applied Group 14 Herbicides ........................ 63 Effects of Foliar-Applied Group 27 Herbicides ........................ 64 Recognizing Herbicide Residue and Drift Injury in Canola 3
Page 1: Recognizing Herbicide Residue Drift
Page 5 and 6: Recropping Restrictions for Residua
Page 7 and 8: Herbicide Clearfield Canola Non-Cle
Page 9 and 10: Table 1: Soil factors that effect t
Page 11 and 12: Carryover can have considerable fie
Page 13 and 14: In this case, cupping was caused by
Page 15 and 16: These plants also exhibit symptoms
Page 17 and 18: An unaffected (left) and severely a
Page 19 and 20: An unaffected plant (left) and one
Page 21 and 22: Severe Symptoms At the 3-leaf stage
Page 23 and 24: Severe Symptoms Leaf purpling and c
Page 25 and 26: Severe Symptoms The combination of
Page 27 and 28: Recognizing Herbicide Residue and D
Page 29 and 30: Symptoms observed at this stage are
Page 31 and 32: Chemical Family Active Ingredient F
Page 33 and 34: Conclusion Herbicide carryover can
Page 35 and 36: Recognizing Herbicide Residue and D
Page 37 and 38: OBJECTIVES AND METHODS This section
Page 39 and 40: Chemical Family Active Ingredient F
Page 41 and 42: Sulfosulfuron symptoms: 2% of an 11
Page 49 and 50: Imazethapyr and Imazamox symptoms:
Page 51 and 52: Imazethapyr and Imazamox symptoms:
Page 53 and 54:
Chemical Family Active Ingredient F
Page 55 and 56:
2,4-D Ester 600 symptoms: 5% of a 2
Page 57 and 58:
2,4-D Ester 600 symptoms: 10% of a
Page 59 and 60:
Effects of Foliar-Applied Group 6 H
Page 61 and 62:
Effects of Foliar-Applied Group 9 G
Page 63 and 64:
Effects of Foliar-Applied Group 14
Page 66:
Canola Council of Canada 400 -167 L
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Herbicide Residue Drift Injury - Canola Council of Canada

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