OXALIS®
A pre-plant soil applied herbicide that gives extended control of key broadleaf weeds prior to their emergence.
KEY BENEFITS:
- Residual control of later-emerging weed flushes and extended protection.
- Provides a clean start by controlling susceptible broadleaf weeds during the early stages of crop development.
- Strengthen resistance management programs by introducing a Group 14 mode of action to control key broadleaf weeds, including resistant weeds to Groups 2, 5, and 9.
General Info
How it works:
OXALIS® controls weeds by inhibiting protoporphyrinogen oxidase (PPO), an essential enzyme required for normal plant growth. Susceptible weed seedlings absorb the herbicide during emergence, and exposure to sunlight triggers rapid cell membrane damage, resulting in weed death.
Application Rates:
- Rate: 60–90 ml/ac
Packaging & Acres Treated:
- Case: 2 x 4.8 L
- Acres Treated: 106–160 acres/case
Water Volume:
- Ground: 40–120 L/ac (10–30 US gal/ac)
- Aerial: Do not apply
Weed Staging:
Emerged weeds at the time of application:
When weeds are already emerged, apply OXALIS® as a tank mix with a glyphosate product such as isopropyl amine or potassium salt at 364–485 g a.e./ac.
Crop Staging:
Pre-plant:
- Field Corn: Apply prior to weed emergence between 7 and 30 days prior to planting field corn into no-till or minimum tillage fields.
- Soybeans: Apply prior to planting or within 3 days after planting and prior to soybean emergence.
| Crop | Soil Type1 | Rate |
|---|---|---|
| Field Corn, Soybeans | Coarse- textured, with <5% organic matter | 60 ml/ac |
| Medium- and fine-textured, with <5% organic matter | 90 ml/ac |
1 Do not apply on soils with > 5% organic matter.
Do not incorporate or perform any tillage operations after application or weed control will be reduced.
Product Information
Rotational Restrictions
The following rotational crops may be planted after applying OXALIS® at the listed rate. Planting earlier than the recommended rotational interval may result in crop injury.
| Rate | Crop | Rotational Interval |
|---|---|---|
| 60 ml/ac | Soybean | Immediately |
| Field Corn | 7 days | |
| Sorghum, Dry Common Beans1, and Canola | 9 months | |
| Alfalfa and Barley | 11 months | |
| All other crops not listed2 | 12 months | |
| 90 ml/ac | Soybean | Immediately |
| Field Corn (minimum and no-till) | 14 days | |
| Field Corn (conventional till) | 30 days | |
| Sorghum, Dry Common Beans1 | 9 months | |
| Alfalfa, Barley, and Canola | 11 months | |
| All other crops not listed2 | 12 months |
1 Common bean varieties vary in their tolerance to herbicides, including to OXALIS®. Since not all common bean varieties grown as rotational crops have been tested for tolerance to OXALIS®, first seeding common bean varieties to the field previously treated with OXALIS® should be limited to a small area to confirm tolerance prior to adoption as a general field practice. Additionally, consult your seed supplier for information on the tolerance of specific varieties of common bean as a rotational crop seeded to field treated with OXALIS®.
2 Successful soil bioassay must be performed prior to planting crops not listed.
After periods of extended drought, when there is a lack of adequate soil moisture, longer rotational intervals may be needed. A successful soil bioassay should be performed prior to planting potential rotational crops to confirm safety.
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