Quali-Pro Oxadiazon 2G is a selective, pre-emergent herbicide formulated as a granular product for the control of annual grasses and broadleaf weeds in commercial turf and ornamentals. It contains 2.0% Oxadiazon, a protoporphyrinogen oxidase (PPO) inhibitor (WSSA Group 14) that kills germinating weed seedlings upon contact with the herbicide barrier. This product features a larger granule design for improved distribution ballistics and visual application confirmation while maintaining a low-odor profile. It is a restricted-use pesticide intended for professional applicators only.
Broadleaf Weeds: Bittercress, Carpetweed, Common Groundsel, Common Purslane, Eveningprimrose, Florida Pusley, Galinsoga, Golden Ragwort, Lambsquarters, Oxalis, Pennsylvania Smartweed, Petty Spurge, Pigweed, Speedwell, Spotted Catsear, Stinging Nettle, Swinecress, Yellow Woodsorrel
Use Sites
Turf: Established perennial Bluegrass, Bermudagrass, perennial Ryegrass, St. Augustinegrass, Tall Fescue, and Zoysia turf on golf courses (fairways), parks, sod farms, and commercial landscapes
Ornamentals: Field-grown and container-grown woody ornamental shrubs, vines, and trees; newly transplanted or established plants
Restrictions: Do not use on putting greens or tees. Do not use on Dichondra or Centipedegrass. Red Fescue and Bentgrass are susceptible and may be severely damaged
Application Information
Application Rate: 100 to 200 lbs of product per acre (2 to 4 lbs active ingredient), or 2.25 to 4.5 lbs per 1,000 sq ft, depending on target weed pressure
For Crabgrass, Goosegrass, Crowfootgrass control: 100-200 lbs/acre
For Annual Bluegrass, Pigweed, Florida Pusley, Oxalis control: 200 lbs/acre
For St. Augustinegrass turf: Do not exceed 150 lbs/acre
Timing: Apply in early spring or late summer prior to weed seed germination. For woody ornamentals, apply anytime during the year prior to germination
Application Method: Apply to dry foliage only with a properly calibrated granular spreader (rotary or drop-type). Rainfall or overhead irrigation after application improves weed control activity. Do not mix into soil or disturb treated areas, as this may reduce effectiveness
Maximum Annual Rate: Do not exceed 300 lbs of product per acre per year
Crop and Plant Safety Non-phytotoxic when used as directed on established turf and ornamentals. Can be applied to both actively growing and dormant plants, as well as newly transplanted ornamentals. Temporary discoloration of Bermudagrass and St. Augustinegrass may occur but is normally outgrown within 2 to 3 weeks. Seeding into treated areas should be delayed until 4 months after treatment. Do not apply to newly seeded areas.
Handling and Safety
Restricted Use: For sale and use by professional applicators only
Signal Word: Caution
Personal Protective Equipment (PPE): Wear gloves, long-sleeved clothing, and eye protection during handling and application
Precautions: Do not apply to wet foliage. Keep out of reach of children and pets. Do not allow entry to treated areas until product has settled. Avoid application near water bodies to prevent runoff
California Prop 65 Warning: This product contains oxadiazon, a chemical known to the State of California to cause cancer
Storage and Disposal
Store in a cool, dry place away from heat, moisture, seeds, fertilizers, and foodstuffs
Store above 32°F to prevent freezing
Dispose of empty container and unused product in accordance with state and local regulations
Do not reuse empty containers
CA Prop. 65 WarningWARNING: This product may expose you to chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm. For more information
go to www.P65Warnings.ca.gov.
