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How to Use Pylex Herbicide

By DoMyOwn staff

Pylex can be used to control up to four dozen broadleaf weeds in cool season grasses and at special rates in some warm season turfgrass. It can be applied to the time of seeding without affecting germination of new seedlings, but do not apply to warm season turfgrass OR up to 28 days after seeding.

 How to Use Pylex Herbicide Video Play

Video Transcript

Fight over four dozen grassy and broadleaf weeds in cool season turf with the broad-spectrum power of Pylex Herbicide.

Designed to control crabgrass, goosegrass, dallisgrass, ground ivy, bermudagrass, and other hard-to-control weeds, this post-emergent herbicide can safely be used on most cool-season turfs including fescues and Kentucky bluegrass. However, it will damage most warm-season turf types, except Centipede which is tolerant, and a special low-rate use when controlling goosegrass in Bermudagrass.

Pylex can be used on residential and commercial lawns, athletic fields, golf courses, and other turf areas.  For residential turfgrass and athletic fields, it can only be applied as a spot spray.

You can apply Pylex up to the time of seeding without affecting the germination of new seedlings. However, do not apply it for 28-days after seeding.

To treat 1,000 square feet in a residential lawn, mix 0.7 to 1 milliliter of Pylex with one gallon of water.  For best results, 30mL of crop oil concentrate or methylated seed oil, also known as an MSO, should be added to your tank mix. Using a non-ionic surfactant is not recommended.

Start by filling your hand pump or backpack spray tank with ½ gallon of water.

Because a small amount of Pyelx is required for spot spraying, you will want to mix the Pylex with water before adding it to your sprayer tank.  Pre-mix the Pylex in a small container filled half-way with water. Then, add this pre-mix into the spray tank. Replace the sprayer cap and agitate before adding the crop oil or MSO and any dye indicators. Agitate again, then finish filling with the remaining ½ gallon of water.

When treating weeds such as goosegrass, crabgrass, and broadleaf weeds apply Pylex as a spot spray when weeds are actively growing. You can also tank mix Pylex with other herbicides, such as Drive XLR8, to improve control, especially for hard to manage crabgrass varieties.

When treating for dallisgrass and bermudagrass, two to three applications in mid to late summer have shown the best results. Depending on if you plan to use 2 or 3 applications, you will need to begin your first treatment 6 to 12 weeks prior to fall reseeding.

If you are planning to apply 2 applications, begin your first treatment 6 to 8 weeks before fall reseeding. If applying 3 applications, begin your first treatment 9 to 12 weeks before fall reseeding.

Pylex is a systemic post-emergent herbicide, meaning it uptakes through the roots, stems, and leaves of the weeds. Due to this mode of action, weeds will bleach, or turn white, about 1 week after application and die over the course of the next 7 to 10 days. The greatest bleaching is seen during times of very active turf growth, and less bleaching during times when it grows less rapidly.

In addition to improving weed control, using Pylex tank-mixed with products like Turflon Ester herbicide or Drive XLR8 have shown significant reduction in turf bleaching. Refer to the label for tank mixing instructions.Do not water the lawn for 24 hours after application, and do not mow for 2 days before or two days after applying Pylex herbicide for best results.

This weed killer can be used at any temperature as long as the turf to which it is applied is not stressed.

Be sure to wear personal protection equipment when applying any liquid herbicide, including chemical safe gloves, long sleeves, pants, and closed-toe shoes.  Read the Pylex Post-Emergent Herbicide label for full application rates and instructions.

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