Dithiopyr 2L

Use Precautions:

• Before making the first application of Quali-Pro Dithiopyr 2L newly established turf must have developed a good root system and a uniform stand, and have received at least two mowings following seeding, sodding, or sprigging. If this product is applied on turf that is not well-established, or has been weakened by weather, pest, disease, chemical, mechanical or other related stress, turf injury may occur.
• For best results, allow 6 months for sod to be established before applying Quali-Pro Dithiopyr 2L.
• Quali-Pro Dithiopyr 2L will prevent the germination of annual bluegrass but will not affect established annual bluegrass. If maintenance of annual bluegrass is desired, using this product during the time of annual bluegrass germination is not recommended. In the states of AZ, CA, NV, OR, WA, NM, ID, MT and UT, Quali-Pro Dithiopyr 2L may contribute to the thinning or stand reduction in established stands of annual bluegrass.
• Early post emergence applications of this product will control crabgrass only if applied prior to the fifth leaf (first tiller) stage of growth.
• For best results, cultural practices that disturb the soli, such as verticutting and core-, spike-, or hydroaerification, should be done before applying this product.

Use Restrictions:

• Do not mix this product with other products containing glyphosate.
• Do not apply this product to golf course putting greens.
• Do not apply this product within 3 months of harvesting sod.
• Do not apply this product until the turfgrass has recovered from cultural practices such as verticutting or core-, spike-, or hydro-aerification.
• Do not use clippings from treated turf for mulching around vegetables or fruit trees.
• Do not apply more than 0.73 oz of Quali-Pro Dithiopyr 2L per 1,000 sq ft (2 pints per acre) per application.
• Do not apply more than 2.2 oz of Quali-Pro Dithiopyr 2L per 1,000 sq ft (6 pints per acre) per year using split or sequential applications.
• In New York State, do not apply more than 2 pints of Quali-Pro Dithiopyr 2L (0.5 lb active ingredient) per acre per year. In Nassau and Suffolk counties of New York, do not exceed 1 pint per year of this product (equivalent to 0.25 lb of active Ingredient per acre).

Grass and Broadleaf Weeds Controlled

Barley, barnyardgrass, bluegrass, brome, crabgrass, crowfootgrass, dallisgrass (seedling), foxtail, goosegrass, kikuyugrass, Mary's grass, oats, ryegrass, sandbur, smutgrass, bittercress, carpetweed, chickweed, dandelion, Carolina geranium, henbit, prostrate knotweed, lespedeza, marestail, black medic, mulberry weed, mustard, buttercup oxalis, parsley piert, redroot pigweed, pineappleweed, purslane, London rocket, shepherdspurse, sowthistle, corn speedwell, spurge, willowherb, and woodsorrel.

Tolerant Turfgrass Species

Creeping bentgrass, Kentucky bluegrass, fine fescue (except for the following varieties: Atlanta, banner, beauty, bilgart, CF-2, enjoy, HF-93, highlight, ivalo, Jamestown, koket, majenta, Mary, pennlawn, Tamara, Tatjana, waldorf, and waldina), tall fescue, ryegrass, bahiagrass, Bermudagrass (except for the Tifgreen hybrid variety), Buffalograss, carpetgrass, centipedegrass, kikuyugrass, seashore paspalum, St. Augustinegrass, and zoysiagrass.

Timing of Applications

For crabgrass control in the spring, summer, or fall, apply this product as a single application, a split application, or a sequential application.

Early Summer or Spring Application: Apply Quali-Pro Dithiopyr 2L at the listed rate as noted in one of the three application plans in the table below. Rates used are dependent on 1) the user's location, 2) the mowing height of the turfgrass, and 3) whether, at the time of application, the use is considered to be preemergence or early postemergence. The total rate applied will affect the length of residual weed control provided by this product. Weather, weed pressure, turfgrass competitiveness, and the user's location within a region are also variables in length of control.

Late Summer or Fall Application:Apply Quali-Pro Dithiopyr 2L in the late summer or early fall (late August through November) at the Plan C use rates listed in the table below. Season-long weed control can be attained by a fall application followed by an appropriately timed spring application. Do not exceed the maximum use rate per year. For Poa annua control see Section titled "Poa annua (Annual Bluegrass) Control" below Use Rate table*.

Plan A:

• For preemergence control in turfgrass that is cut relatively high (e.g., residential lawns).
• Provides 3 to 5 months of preemergence crabgrass control and early postemergence control of crabgrass up to the 3-leaf stage at sites where turfgrass is cut relatively high.
• Make split applications with the rates in the Use Rate table* being split across two applications made 5 to 10 weeks apart. Split applications may provide improved weed control.

Plan B:

• For preemergence control in turf: (a) when turfgrass is cut relatively low (e.g., golf fairways); and (b) when turfgrass maintenance or weed control has been conducted during the previous year.
• Provides 4 to 6 months of preemergence crabgrass control and for early postemergence control up to crabgrass tillering at sites where turfgrass is cut relatively high.
• Make split applications with the rates in the Use Rate table* being split across two applications made 5 to 10 weeks apart. Split applications may provide improved weed control.

Plan C:

• For preemergence control in turf: (a) when turfgrass is cut relatively low (e.g., golf fairways); and (b) when turf maintenance or weed control was not conducted during the previous year.
• Provides 4 to 6 months of preemergence crabgrass control and for early postemergence control up to crabgrass tillering at sites where turfgrass is cut relatively low (e.g., golf fairways).
• For longer periods of control, make subsequent sequential pre and/or postemergence applications.
• Make split applications with the rates in the Use Rate table* being split across two applications made 5 to 10 weeks apart. Split applications may provide improved weed control.

*See the attached label of the Use Rate table.