SKU: 9811390433
princep herbicide active ingredient

princep herbicide active ingredient Quali-Pro® Prodiamine 4L Pre-Emergent Herbicide

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Description

princep herbicide active ingredient Quali-Pro® Prodiamine 4L Pre-Emergent HerbicideQuali Pro Prodiamine 4L is a professional grade liquid pre emergent herbicide designed to provide season long control of many annual grassy and broadleaf weeds. Formulated with 40. 8% prodiamine, this flowable concentrate helps prevent weeds from establishing by stopping newly germinating seeds before they develop. Ideal for use on established turfgrass, lawns, ornamentals, sod farms, and Christmas tree farms, Prodiamine 4L helps control problem weeds

Quali-Pro® Prodiamine 4L is a professional-grade liquid pre-emergent herbicide designed to provide season-long control of many annual grassy and broadleaf weeds. Formulated with 40.8% prodiamine, this flowable concentrate helps prevent weeds from establishing by stopping newly germinating seeds before they develop.

Ideal for use on established turfgrass, lawns, ornamentals, sod farms, and Christmas tree farms, Prodiamine 4L helps control problem weeds such as crabgrass, annual bluegrass, chickweed, henbit, knotweed, foxtail, and spurge. Its low solubility and low volatility allow it to remain in the weed germination zone for extended protection. This formulation provides reliable performance with low use rates and a low-staining formulation.

Product Details

  • Professional liquid pre-emergent herbicide for turf and ornamental areas

  • Contains 40.8% prodiamine (4 lb per gallon)

  • Provides season-long control of many grassy and broadleaf weeds

  • Controls weeds such as crabgrass, Poa annua, chickweed, henbit, foxtail, spurge, and knotweed

  • Low solubility and volatility help keep the product in the weed germination zone

  • Low-staining formulation

  • Suitable for lawns, landscape ornamentals, sod farms, and Christmas tree farms

  • Economical alternative comparable to Barricade® 4L

How It Works

Prodiamine 4L works as a pre-emergent herbicide by inhibiting cell division in newly germinating weed seeds. This prevents weeds from establishing in treated areas.

For effective activation, approximately 0.5 inches of rainfall or irrigation is required after application to move the product into the soil where weed seeds germinate.

Application Information

  • Mixing Rate: 0.3 – 1.1 oz per 1,000 sq. ft.

  • Apply using a low-pressure sprayer

  • Minimum spray volume: 20 gallons per acre (0.5 gallons per 1,000 sq. ft.)

  • May be tank mixed with other labeled herbicides (see label for details)

Target Weeds

Controls many grassy and broadleaf weeds, including:

  • Crabgrass

  • Annual bluegrass (Poa annua)

  • Foxtail

  • Knotweed

  • Chickweed

  • Henbit

  • Spurge

  • Additional weeds listed on the product label

Specifications

Active Ingredient: Prodiamine 40.8%
Formulation: Liquid (flowable concentrate)
Container Size: 2.5 Gallon
Manufacturer: Control Solutions
Use Sites: Established turfgrass, lawns, sod nurseries, ornamentals, and Christmas tree farms
Restrictions: Not for use on golf course putting greens

Important Use Information

Do not graze or feed livestock forage from treated areas. Do not apply to plants intended for food use. Do not apply aerially or through irrigation systems unless specified on the label. Do not apply to golf course putting greens. Always follow all directions, restrictions, and precautions listed on the product label.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9811390433

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4.4 ★★★★★
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L
Verified Purchase
Laurie
Grantham, US
★★★★★ 5
Dry mouth
Size: 80 ea
Finally something that works day or night. Easy to apply.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
L
Verified Purchase
Lajitasgal
Louisville, US
★★★★★ 5
These are fantastic!!!
Size: 80 ea
All I can say is, "WOW." I've been fighting terrible dry mouth since going on cpap three months ago (my mask covers nose and mouth). My machine has a humidifier but that wasn't helping at all, even when turned up so high it was raining in my mask! The first nite I tried these lozenges it was like a gift from the angels! I used two, putting one on each side as per the instructions. It was a little weird sticking them to my molars at first; they didn't seem to want to stick but finally took hold. I also had to kind of adjust them so they didn't get knocked loose when I closed my jaws. But once they were in place they worked like a charm. I don't find the taste at all objectionable. It's kind of a very, very mild mint. I will *definitely* order these again. If you fight dry mouth, these are worth trying even though they're on the expensive side. They aren't as expensive as dental work if they end up protecting your teeth from cpap-induced cavities! UPDATE - my oral hygienist told me that CPAP users often begin to develop cavities and other dental problems from using the device. She said that the use of xilitol, which is in these lozenges, night help stave off such problems. Here I am, after years of CPAP use, and I have had no dental problems other than a lost filling! These lozenges are a lifesaver!
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Reviewed in the United States on May 15, 2018
J
Verified Purchase
Jennifer Jons
Pawtucket, US
★★★★★ 3
It works well but uncomfortable
Size: 80 ea
I take blood pressure pills that dry my mouth out. The inside of my lips feel burned from being so try overnight. It's uncomfortable. I discovered these tablets and thought I'd give them a shot. I am struggling with them. I don't have a large mouth and these have to sit inbetween your gums and your lip or cheek. They are bigger than I would like. Plus they kind of hurt my gums. You're supposed to put them in place, wait ten seconds so they stick and then there is no further instruction other than they work for several hours. Do we just leave them in place all night because the uncomfortability makes it so I can't sleep easy. I also wear a nightguard on my top teeth to keep me from grinding. I love Xylitol, I bought some to use in my coffee in the day time so that part is a great thing. I just can't get past how uncomfortable it is to have them fixated in your mouth all night. One last thing... you're supposed to put two in. I did that the first night and it was like... NOPE. I let them sit for 5 minutes like it says and then I just dissolved the rest in my mouth because no way could I leave them in place and sleep. The next night I just used one on my bottom gums. It was still uncomfortable. If they could make them smaller, it would be way easier. Other than that, the Xylitol does work and my mouth isn't nearly as try when I wake up in the morning.
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Reviewed in the United States on June 22, 2025
S
Verified Purchase
schaumal
New York, US
★★★★★ 5
Odd but surprisingly great
Size: 80 ea
These things are pretty weird. I had no idea what I was ordering when I ordered them. When they came, I didn't read the documentation and tried one like a normal breath mint. No no no. I set them aside for a few months -- until I read an article online in which dentists were interviewed and in which the dentists recommended products helpful for dental health. These things were mentioned in that list, so I dug them out and read the documentation. Oddly enough, each "melt" has an adhesive-like side that will keep it in place against your jaw (tucked out-of-the-way, between gum/teeth and cheek). And, it's gone -- there but forgotten. Lasts for hours (no kidding), slowly dissolving, keeping your mouth moist (like for speaking) and keeping your breath slightly "minty fresh" (I'm laughing at that expression.). And, apparently, there is a flouride-like dental benefit, but I haven't researched that. Anyway, I highly recommend these quite-strange "melts" (not mints but slightly minty).
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Reviewed in the United States on November 20, 2023
J
Verified Purchase
Jimmy Pryor
Chelsea, US
★★★★★ 5
Clear and powerful analysis.
Format: Paperback
The three books in Bowlby's trilogy on Attachment, Separation and Loss need to be read a whole. Using the studies and case histories of children being separated from their mothers and important others, in a wide range of circumstances from separations of only a few minutes, through separations of several weeks on up to prolonged and permanent separation due to divorce and death, Bowlby outlines a new way of understanding neurosis, psychosis and optimal, healthy functioning. Using the lens of a Darwinian analysis, and the case histories written up by psychoanalysts spanning decades, he compares and contrasts his new theory with that of previous psychological thought, especially the psychoanalytic tradition. I found his analysis penetrating and illuminating. It sets the stage and formulates the hypotheses for further research. Much of that research has now taken place and has borne out Bowlby's theories. Not all of it, of course. Because Bowlby's attachment theory became and continues to be such a foundational analysis for so much that has followed in its wake, from evolutionary psychology to child development to psychotherapy, it is a must read for anyone interested in these and related fields.
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Reviewed in the United States on November 7, 2012

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