Oryzalin 4

Oryzalin 4
10% Off This Item! Use Code: FALL19

Ask A Pro

Call Us: 866-581-7378
Mon-Fri 9am-5pm ET
Email Customer Service
For help with your order
Live Chat
DIY Pros Available Now

You May Also Need

Taurus SC Termiticide 0.4 oz.
$9.98

Average Rating

There are no reviews for this product yet. Be the first.

Product Overview

Oryzalin 4 is a surface-applied pre-emergent herbicide that is specially formulated to help control annual grasses and broadleaf weeds. It contains 41% Oryzalin which is effective against annual bluegrass, crabgrass, Spurge (prostrate), goosegrass, groundsel, knotweed, foxtail, and more in ornamental plantings, established warm season turfgrass, Christmas tree plantations, ground covers/perennials, non-bearing fruit and nut trees and vines, and non-cropland and industrial sites. It is an orange color which may cause temporary discoloration on surfaces but it can be easily altered using commercially available colorant, as well as use with mulch colorants like Nu-Mulch and Mulch Magic. It is guaranteed cost-efficient and provides a long-lasting control for up to eight months.

Features and Specs

Active Ingredient: Oryzalin - 41%
Target pests: Crabgrass, Spurge (prostrate), Annual Bluegrass (Poa annua), Groundsel, Henbit, Goosegrass, Knotweed, Foxtail
For use in: Commercial Landscapes & Turf-grass, Nurseries, Non-crop areas
Application: * See label for complete application instructions
Pet safe: Yes, if used as directed on Label
Formulation: Professional Product
NOT FOR SALE TO: AK
Shipping Weight: 25.21 lbs
Manufacturer: Quali-Pro (Mfg. Number: 83013843)
UPC: 072693384309
EPA Registration: 53883-369

Details

DIRECTIONS FOR USE

APPLICATION

Soil Preparation

Quali-Pro Oryzalin 4 controls weeds growing from seed. Quali-Pro Oryzalin 4 will not control emerged weeds. Quali-Pro Oryzalin 4 does not control established weeds, weeds growing from stolons, rhizomes, or root pieces. Therefore, areas to be treated should be free of emerged weeds. Weed residues, pruning, and trash should be thoroughly mixed into the soil or removed prior to treatment. In field applications, the soil should be in good tilth and free of clods at the time of application.

Ground Application

Apply Quali-Pro Oryzalin 4 as a directed spray to the soil surface or over the top of plants. Use only a properly calibrated, low-pressure herbicide sprayer that will apply the spray uniformly. Use screens no finer than 50 mesh in nozzles and in-line strainers. Apply the appropriate rate of Quali-Pro Oryzalin 4 as outlined in APPROVED USES section of this label. In all cases, use sufficient water volume to obtain uniform coverage and deliver the desired rate of Quali-Pro Oryzalin 4 to the treated area. The volume of water used is not critical as long as the desired rate of Quali-Pro Oryzalin 4 is delivered uniformly across the area treated.

When calibrating, determine the volume of water delivered by the sprayer to a given area (100 sq ft, 1 acre, etc.). Then mix the desired rate of Quali-Pro Oryzalin 4 in the amount of water required to cover the entire area to be treated. As the amount of water used (spray volume) decreases, the importance of accurate calibration and uniform application increases. Check the sprayer daily to ensure proper calibration and uniform application. Maintain continuous agitation from mixing through application. Avoid spray pattern skips and overlaps that may result in incomplete coverage or over-application.

Hand-Held or Backpack Sprayer Application

The amount of water used to apply Quali-Pro Oryzalin 4 herbicide is not critical, but should be sufficient for uniform coverage of the target area. Calibrate by determining the volume of water required to treat 1000 square feet. Use this calibration volume to determine the amount of water and Quali-Pro Oryzalin 4 herbicide needed to treat the target area (see the following calibration example). Note: Sprayer calibration (volume of spray needed to treat 1000 square feet) will vary with each individual operator.

Steps in Calibration

  1. Mark an area of 1000 square feet (i.e. 20 by 50 feet, or 25 by 40).
  2. Place the sprayer on a level surface and add water noting the final level of water in the spray tank.
  3. Spray the marked area with a sufficient volume of water to provide uniform coverage. Refill the sprayer to the same level as before measuring the amount of water added. The measured water added to the sprayer is the volume needed to cover 1000 square feet.
  4. Determine the application rate (fl oz/1000 sq ft) for Quali-Pro Oryzalin 4 from the APPROVED USES section of this label.
  5. To each volume of water used, as measured in step 3, add the amount of Quali-Pro Oryzalin 4 as determined in step 4.

Example: If the sprayer used 2 gallons of water to cover 1000 square feet and the desired application rate of Quali-Pro Oryzalin 4 is 3 fluid oz/1000 square feet, then you would add 3 fluid ounces of Quali-Pro Oryzalin 4 to every 2 gallons of water to be used.

ACTIVATION AND CULTIVATION

Quali-Pro Oryzalin 4 will remain stable on the soil surface up to 21 days following application. In the absence of timely rainfall, irrigation can be used to activate Quali-Pro Oryzalin 4. A minimum of one-half (1/2) inch of rain or its equivalent in sprinkler irrigation is necessary to activate Quali-Pro Oryzalin 4. If weeds begin to emerge due to lack of rainfall or irrigation, shallow cultivate 1-2 inches deep to destroy existing weeds, or remove them by hand. Shallow cultivation to a depth of 1-2 inches will enhance herbicidal effectiveness. If Quali-Pro Oryzalin 4 is not activated by rainfall, irrigation, or cultivation within 21 days of application, or existing weeds have not been removed, erratic weed control may result.

APPROVED USES

ORNAMENTAL PLANTINGS

Quali-Pro Oryzalin 4 is recommended for use on certain landscape container- and field-grown established ornamental plants including: trees, shrubs, ground covers/perennials, flowers, non-bearing fruit and nut trees, non-bearing vineyards, and in the production of ornamental bulbs. (See ORNAMENTAL BULBS section for special use directions.)

Tank Mix Combinations

Tank mix combinations of Quali-Pro Oryzalin 4 plus Roundup/Glyphosate, and many other labeled herbicides may be used to control undesirable vegetation in ornamental areas. QualiPro Oryzalin 4 may also be tank mixed with Gallery herbicide and applied preemergence to broaden the spectrum of broadleaf weed control in ornamental areas. Applied as directed, these tank mixes of Quali-Pro Oryzalin 4 will provide control of susceptible weed species listed on the respective labels. Refer to tank mix product labels for specific use directions, precautions, and limitations before use.

Quali-Pro Oryzalin 4 Plus Roundup/Glyphosate: Tank mix combinations of Quali-Pro Oryzalin 4 plus Roundup are recommended to control existing undesirable vegetation. Applied as directed, Quali-Pro Oryzalin 4 plus Roundup will provide postemergence control of susceptible weed species listed on the label for Roundup and residual preemergence control of susceptible weed species listed on the label for Quali-Pro Oryzalin 4. Refer to the label for Roundup for specific use directions, precautions, and limitations before use.

To avoid possible injury, do not apply Quali-Pro Oryzalin 4 to:

  • Nursery, forest, or Christmas trees: seedling beds, cutting beds, or transplant beds.
  • Unrooted liners or cuttings that have been planted in pots for the first time.
  • Pots less than four inches wide.
  • Ground covers until they are established and well rooted.
  • Ornamental plantings where there is likelihood of runoff onto lawn areas.
  • Areas containing dichondra or cool season turfgrass species.

On container-grown ornamentals where weed seed germination continues for extended periods of time, do not make repeat applications of Quali-Pro Oryzalin 4 for at least 90 days or crop injury may occur.

Application of Quali-Pro Oryzalin 4 over the top of plants with newly forming buds may cause injury. In this situation, a directed spray is recommended.
For soils treated with Quali-Pro Oryzalin 4 during the previous season, plant only the ornamental species listed on this label or injury may occur.

ICE PLANT

When establishing unrooted ice plant on coarse-textured soils in landscaping plantings, do not exceed the 2 quart per acre rate of Quali-Pro Oryzalin 4 or crop injury may occur.

Note: Injury on the following plant species has been observed following applications of Quali-Pro Oryzalin 4 and use is not recommended.

SHADEHOUSE AREAS

Quali-Pro Oryzalin 4 may be applied to drainage areas under benches in open shadehouse-type structures where the natural flow of air is unimpeded. Do not apply in enclosed greenhouses or in enclosed shadehouse-type structures. Do not apply within 3 weeks prior to enclosure of greenhouse or poly-type structures.

CHRISTMAS TREE PLANTATIONS

Quali-Pro Oryzalin 4-Alone

Apply Quali-Pro Oryzalin 4 as a directed spray to the soil surface or as an overtop spray to established plantings of field grown Christmas tree species, including fir (Abies spp.), Pine (Pinus spp.), and spruce (Picea spp.). Follow all instructions provided in the GENERAL INFORMATION section of label.

Tank Mix Combinations

Tank mix combinations of Quali-Pro Oryzalin 4 plus other labeled herbicides may be used as directed sprays or overtop sprays in established Christmas tree plantings. When applied according to use directions, these tank mixes will provide control of susceptible weed species listed on the respective product labels. Refer to tank mix product labels for specific use directions, precautions, and limitations before use.

Quali-Pro Oryzalin 4 Plus Roundup/Glyphosate: Apply tank mix combinations of Quali-Pro Oryzalin 4 plus Roundup only as directed sprays in Christmas tree plantings. When applied according to use directions, Quali-Pro Oryzalin 4 plus Roundup will provide postemergence control of susceptible weed species listed on the label for Roundup and residual preemergence control of susceptible weed species listed on the label for Quali-Pro Oryzalin 4. Refer to the label for Roundup for specific use directions, precautions, and limitations before use.

NON-CROPLAND AREAS AND INDUSTRIAL SITES

Non-cropland Areas—Tank Mix Combinations

Tank mix combinations of Quali-Pro Oryzalin 4 plus Roundup/Glyphosate and many other labeled herbicides may be used to control undesirable vegetation in non-cropland areas such as roadsides, rights-of-way, etc. When applied according to use directions, these tank mixes will provide control of susceptible weed species listed on the respective product labels. Refer to tank mix product labels for specific use directions, precautions, and limitations before use.

Industrial Sites—Tank Mix Combinations

Tank mix combinations of Quali-Pro Oryzalin 4 plus Roundup, Spike herbicide, and many other labeled herbicides may be used as overtop sprays to control existing vegetation on industrial sites such as utility substations, highway guard rails, sign posts, and delineators. When applied according to use directions, these tank mixes will provide control of susceptible weed species listed on the respective product labels. Refer to tank mix product labels for specific use directions, precautions, and limitations before use.

Warm-Season Turf-grasses

Quali-Pro Oryzalin 4 may be applied as a preemergence treatment for control of annual grasses and certain broadleaf weeds in established warm season turf including bahiagrass, bermudagrass, buffalograss, centipedegrass, St. Augustinegrass, zoysiagrass, and established tall fescue growing in warm season areas. Established turf is defined as a dense turf having a well-anchored root system and healthy vigorous top growth. Use Quali-Pro Oryzalin 4 only as a part of a total turf management program that includes good fertilization practices.

Quali-Pro Oryzalin 4 may be tank mixed with Gallery herbicide and applied preemergence to broaden the spectrum of broadleaf weed control in warm season turf. Refer to the label for Gallery for specific use directions, precautions, and limitations before use.

Any cultural practices that disturb the soil, such as aerification or verticutting, should be done prior to application of Quali-Pro Oryzalin 4.

Quali-Pro Oryzalin 4 will not control emerged weeds. Successful preemergence control of weeds listed on this label requires that QualiPro Oryzalin 4 be applied prior to weed germination and be activated by at least one-half (1/2) inch of rainfall or irrigation within 21 days of application.

Quali-Pro Oryzalin 4 may injure turf that is not well-established or is stressed or weakened due to unfavorable winter climatic conditions, drought, nematodes, or other factors which damage or weaken turf root systems. Apply Quali-Pro Oryzalin 4 only to healthy, well-established turf that has a well-anchored root system.

Do not apply Quali-Pro Oryzalin 4 in the spring or early summer to tall fescue turfgrass reseeded the previous fall. In such cases, apply Balan 2.5G granular herbicide at 60-80 pounds per acre in early summer (Round 1) and Quali-Pro Oryzalin 4 at 1.5 quarts per acre approximately eight weeks later (Round 2). Do not apply Quali-Pro Oryzalin 4 at the single application rate (2 quarts per acre) to established tall fescue; in such cases, apply 1.5 quarts per acre of Quali-Pro Oryzalin 4 in an initial application, followed by a second application of 1.5 quarts per acre 8-10 weeks later.

Application Rates, Frequency, and Timing of Application

Quali-Pro Oryzalin 4 can be applied in the spring for summer annual grass and broadleaf weed control, and in the fall for annual bluegrass (Poa annua) and winter annual broadleaf weed control.

1. Summer Annual Grasses and Broad-leaf Weeds

Single Application Program: Apply 2 quarts per acre of Quali-Pro Oryzalin 4 in late winter or early spring, prior to the onset of conditions favorable for annual weed germination.

Split Application Program: As an alternative to a single application program, Quali-Pro Oryzalin 4 may be applied in a split application. This program is desirable when the initial application is made well in advance of weed germination and where weed control is desired for a longer period of time. Apply 1.5 quarts per acre of Quali-Pro Oryzalin 4 in an initial application, followed by a second application of 1.5 quarts per acre 8-10 weeks later.

The second treatment of the split application may follow application of a different preemergence grass herbicide in place of the initial application of Quali-Pro Oryzalin 4.

2. Annual Bluegrass (Poa annua) and Winter Annual Broadleaf Weeds

In areas of heavy annual bluegrass infestation, its elimination will result in temporary thinning of turfgrass cover. Proper fertilization, irrigation, and soil-incorporated reseeding should be employed to speed the restoration of desirable turfgrass cover in areas previously occupied by annual bluegrass (see section on reseeding).
Apply Quali-Pro Oryzalin 4 as a preemergence treatment in late summer or early fall, prior to the expected germination period for annual bluegrass and winter annual broadleaf weeds. If annual bluegrass infestation is severe and its elimination will result in thinning of turfgrass cover, apply Quali-Pro Oryzalin 4 at 1.5 quarts per acre. If thinning of turfgrasses cover is not a potential problem, Quali-Pro Oryzalin 4 may be applied at 2 quarts per acre.

Weed Control in Florida

In Florida, apply 1.5 quarts per acre of Quali-Pro Oryzalin 4 three times per year, or every 90 – 100 days in the fall, early spring, and early summer. Do not apply more than 1.5 quarts per acre of QualiPro Oryzalin 4 in any single application.

Reseeding

Herbicides that control annual weeds may also affect establishment of desirable turfgrass seedlings. Reseeding should be delayed for at least 90-120 days following application of Quali-Pro Oryzalin 4. When reseeding, it is essential that proper cultural practices such as soil cultivation and seedbed preparation, irrigation, and fertilization be followed. For satisfactory reseeding results following use of QualiPro Oryzalin 4, the seeding rate should be increased and equipment designed to place seed in full contact with soil (such as the Rogers Aero Seeder) should be employed.

WARNING: This product can expose you to chemicals including oryzalin which is know to the State of California to cause cancer. For more information go to https://www.P65Warnings.ca.gov

There are no reviews for this product yet. Be the first.

Questions & Answers

Have a question about this product?
  
Q
Can I seed after applying Quali-Pro Oryzalin 4 Pro?

I live in West Texas and am over run with Puncturevine and sand burs. I want to burn off my yard this winter and apply this in February or March. Can I spread grass seed after the application and use a different weed and feed product?

A

According to Quali-Pro Oryzalin 4 Pro's label, reseeding should be delayed for at least 90-120 days following application. When reseeding, it is essential that proper cultural practices such as soil cultivation and seedbed preparation, irrigation, and fertilization be followed. Also, using a weed and feed after that timeline is fine but make sure to read the label of the weed and feed you decide to use to make sure the herbicide in it doesn't stumt the growth of the new seeds.

Was this answer helpful to you?  YesNo

Q
Can I apply Quali-Pro Oryzalin 4 Pro in rain?
A

Quali-Pro Oryzalin 4 Pro works best when irrigated with at least 1/2 inch of water after application. For the most accurate application, it is probably best not to apply during a rain.

Was this answer helpful to you?  YesNo

See all 2 customer questions

$177.32 + Free Shipping*