Herbicide Residue Drift Injury - Canola Council of Canada

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48 Effects of Foliar-Applied Group 2 Imazethapyr and Imazamox (Odyssey) Effects of Foliar-Applied Group 2 Imazethapyr and Imazamox (Odyssey) Odyssey is registered for use on Clearfield canola as a foliar application. The symptoms presented here are for non-Clearfield type canola varieties. IMAZETHAPYR AND IMAZAMOX SYMPTOMS: 2% OF A 17 G/ACRE RATE Symptoms were not observed at lower rates. Injury symptoms first appeared at flowering time at the 2% rate. Symptoms included: 1) purpling of side C shoot leaves, 2) chlorosis on the newest leaves, main stem and side shoots, and 3) delayed maturity and poor pod fill. A Unsprayed (A) versus sprayed (B) canola, and a close-up of chlorosis on new leaves (C). B
Imazethapyr and Imazamox symptoms: 2% of a 17 g/acre rate Unsprayed plants (A) have normal axis development compared to sprayed (B) plants, which have purpling and chlorosis of side shoot leaves. A B Recognizing Herbicide Residue and Drift Injury in Canola 49
Page 1 and 2: Recognizing Herbicide Residue Drift
Page 3 and 4: Foliar Herbicide Injury Introductio
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 41 and 42: Sulfosulfuron symptoms: 2% of an 11
Page 47: Sulfosulfuron symptoms: 10% of an 1
Page 51 and 52: Imazethapyr and Imazamox symptoms:
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

Herbicide Residue Drift Injury - Canola Council of Canada

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