Herbicide Recommendations for Celery: Postemergence Grass and Broadleaf Herbicides

Table of Contents

1. Introduction
2. Gesagard
3. Lorox L
4. Mineral oil
5. Vegetable Herbicide Weed Control Ratings (Table 13-1) (PDF file - 86Kb)
   • Annual Grasses
   • Broadleaf Weeds
   • Perennial Weeds
6. Related Links

Introduction

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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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 in the transplanted crop.
• Do NOT use on direct seeded crop.

Precautions

• Apply 8 to 10 days after transplanting.
• Apply in 150-300 L/ha (60-120 L/ac) water in the transplanted crop.
• Some yellowing of the leaves may be noticed but this will be temporary.

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Precautions

• Apply as the true leaves develop on the celery, before weeds are 10 cm high.
• Use ONLY on outdoor seedbed and ONLY if the soil is moist.

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Related Links

... on general Weed topics
... on general Vegetable topics
... on general Celery topics
... on pesticide labels, search the PMRA website
... on weed identification, order OMAFRA Publication 505: Ontario Weeds
... on weed control, order OMAFRA Publication 75: Guide To Weed Control

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