Herbicide Residue Drift Injury - Canola Council of Canada

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40 Effects of Foliar-Applied Group 2 Sulfosulfuron (Sundance) Effects of Foliar-Applied Group 2 Sulfosulfuron (Sundance) Sulfosulfuron, tradenamed Sundance, was removed from the marketplace and is no longer available to western Canadian farmers. However, as a Group 2 sulfonylurea product, these sulfosulfuron symptoms of drift are similar to those found in other currently registered sulfonylureas such as Telar, Ally, Express Pro, Harmony, and many of the DuPont PrecisionPac herbicides. GROUP 2 SYMPTOMS: 1% OF AN 11 G/ACRE RATE OF SULFOSULFURON At this rate, the only symptom observed was temporary purpling of side shoot leaves, which occurred at flowering time. GROUP 2 SYMPTOMS: 2% OF AN 11 G/ACRE RATE of SULFOSULFURON At this rate, symptoms first appeared at early flowering. Symptoms included: 1) chlorosis on the newest leaves, 2) chlorosis and purpling of side shoot leaves, 3) chlorosis of axillary flowers and the main flower stem, 4) injury to the meristem, and 5) delayed maturity of axillary flowers.
Sulfosulfuron symptoms: 2% of an 11 g/acre rate Chlorosis of true leaves (red arrow) and side shoot leaves (yellow arrow). Leaf chlorosis diminished over time. Chlorosis of main flower head (red arrow) and an unaffected flower (yellow arrow). Recognizing Herbicide Residue and Drift Injury in Canola 41
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 39: Chemical Family Active Ingredient F
Page 43 and 44: 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

Herbicide Residue Drift Injury - Canola Council of Canada

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