Publication 75S - 2007
Chapter 13. Vegetable Crops

NOTE:

Table of Contents

1. Celery - Pre-Harvest Interval Clarification
2. Postemergence
3. Gesegard
4. Snow Peas: Product Removal
5. PDF Format
   • Chapter 13: Vegetable Crops (PDF Format - 153 KB)
   • Publication 75S 2007, Guide to Weed Control
6. Publication 75, Guide to Weed Control
7. Related Links
8. For more information

Celery - Pre-Harvest Interval Clarification:

• Gesagard - Preharvest Interval (PHI) is 54 days when applied on celery

Postemergence:

• Leaf stage of the weeds is critical for good weed control. Smaller weeds are generally easier to kill but there needs to be enough leaf surface to intercept the herbicide. Apply according to recommended leaf stages. Crop stage is important to optimize crop safety. Adjuvants will frequently improve the weed control when used as directed. Weather or other conditions may influence the optimum rate of adjuvant, see the product label for more details. Always use appropriate drift management technology.

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Gesagard

Trade name	Gesagard 480 SC
Active ingredient	prometryne
Formulation	480 g/L
Rate per hectare (active)	1.8 to 2.2 kg/ha
Rate per hectare (product)	3.75 to 4.58 L/ha
Rate per acre (product)	1.5 to 1.83 L/ac

Precautions

• Do NOT apply until 21 days after transplanting crop when the celery plants are established.
• Apply in 200-1000 L/ha (80-400 L/ac) water.
• Do NOT use on direct seeded crop.
• Preharvest interval is 54 days.

Snow Peas - Product removal:

• Excel Super - For postemergent annual grass and quackgrass control in Snow Peas. Current preharvest interval (PHI) doesn't allow the product to be used in peas.

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Related Links

• New Herbicide Registrations
• Weeds in Ontario
• Pesticide Application and Safety
• Pesticide Companies and Agents
• OMAFRA Sprayer Calibration Calculator
• Search the PMRA website for labels
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 75: Guide To Weed Control

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