Variant SKU: PSP0256
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Description
sepro herbicide Navigate Herbicide 50 lbs. BagOverview Variant SKU: PSP0256 Navigate Herbicide Aquatic Weed Killer for Ponds & Lakes Navigate Granular Aquatic Herbicide is a powerful 2,4 D based selective herbicide designed to control submerged and floating broadleaf weeds in ponds and lakes. Formulated on heat treated attaclay granules, Navigate sinks quickly to the bottom, releasing the active ingredient directly into the root zone for maximum effectiveness. It is especially effective against
Overview ▾
Pond Weeds Controlled ▾
- Watermilfoil (including Eurasian Watermilfoil)
- Water Stargrass
- Bladderwort
- White & Yellow Water Lily (Spatterdock)
- Water Shield
- Water Chestnut
- Coontail*
*Repeat treatments may be necessary for resistant species.
How to Apply ▾
- Apply evenly using a broadcast spreader.
- Typical rate: 5–7.5 lbs per 2,000 sq ft.
- Rates vary from 100–200 lbs per acre depending on target weed.
- 50 lb bag treats up to approximately 20,000 sq ft.
Initial results appear within 7–10 days. Full control typically occurs within 3–5 weeks as weeds die and decompose.
For heavy infestations, apply in lanes with untreated buffer strips (50–100 ft wide) to prevent oxygen depletion. Treat buffer areas after initial treated zones have decomposed.
When to Apply ▾
Best results occur when applied in spring and early summer while weeds are actively growing.
Late season applications are possible but may require repeat treatments and results may not be fully visible until the following season.
Water pH below 8 generally yields best performance.
Active Ingredient ▾
27.6% 2,4-D (Butoxyethyl Ester of 2,4-Dichlorophenoxyacetic Acid)
Specially formulated granular carrier resists rapid breakdown and delivers chemical directly to the plant root zone.
Restrictions & Important Information ▾
Shipping Restrictions: Cannot ship to CA, CT, ME, MI, NJ, NY, OR, WA or Canada.
- Not for use in water used for irrigation, agricultural sprays, dairy watering, or domestic water supplies.
- 1-day swimming restriction.
- 7-day irrigation restriction.
- 7-day drinking water restriction.
- Limited to 2 applications per season (minimum 21 days apart).
In some states, permits may be required for chemical use in public waters. Always consult the product label and local regulations.
*Product does not qualify for free shipping*
Oxygen & Water Quality Considerations ▾
As treated weeds decompose, they consume oxygen. When weed density is heavy, treat in sections to maintain proper dissolved oxygen levels for fish safety.
For enhanced breakdown of dead vegetation, beneficial bacteria such as Muck Remover may be applied after treatment.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- 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
4.1 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 4
Better Than Expected
Color: Black, Color: Black
Initial impressions: The chair is better quality than I expected. The seat material is nice: feels firm but soft; better than those seats with faux leather. So far, it is comfortable even for being over 200 lb and over 6 feet tall.
Many parts are sturdy metal, which is much better than plastic. The base that holds the wheels may be a form of plastic, but it is dense and feels strong; almost like metal.
The chair frame appears to be a firm plastic too, but not thin, so my initial thought is it will last. It has a buffed texture [not shiny or smooth -- which to me is nice, because it makes it look and feel more solid and not cheap.
The one weak point in design, in my opinion, is the cover that fits over the raising post: it feels a bit flimsy. Regardless, it probably wouldn't be noticeable to most unless they get down on the floor and squeeze it. Nevertheless, that there is a cover that raises and lowers like a telescope-- to "hide" the post, is a nice added attribute. A customer could leave the that cover off if they prefer, but I like it.
I appreciate that the casters stay in place (unlike the other chair I tested: the KK Toner Round Rolling Stool, whose wheels do not stay in place). This makes it possible to lift the chair without fear of dropping casters.
The casters are replaceable too, which is good. I was able to use Lifelong brand casters, instead, which are purportedly safe for hardwood and marble floors.
The seat is stationary once attached. It is mostly upright [not leaning back]. Even with its mesh backing it is firm. This is not a plush, rocking chair type of product, yet it is comfortable.
Instructions: As seems to be the new trend, they were mostly pictures without words. Regardless, putting the chair together was quite easy. Just make sure you doube check the front versus back of the seat -- this is important for setting the metal lift connector in place. And, don't forget to put the holding ring and washer on the screws.
They add an extra screw for the connector, and an extra screw, washer, and pressure ring for the back attachment. That was a pleasant surprise; and is appreciated.
The raising and lowering mechanism works well. You can sit on the chair while lowering it; it seems best to get off the chair while raiding it.
It lowers to where the seat is 28 inches off the floor. It rises to 22.5".
The seat is 17.5" wide x 16.25" front to back [the assembled chair is 18.5" front to back]. The back rest top to the floor is 34". The wheel base is about 20" at its widest point, before adding the wheel casters. With their standard wheels the width is about 21" to 21.5". With the Lifelong brand wheels, it will have a width of 21" to 22.5", depending on how the rotating wheel base is turned.
All in all, a good experience.
As I wrote, these are my initial impressions [I've only had the chair one day]. My intention is to use it daily as a dining chair. I will add to this review as time goes by [e.g., in ~ six months], to indicate how well this product does long-term and with moderately heavy use. I'd appreciate seeing more former reviewers do the same.
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Reviewed in the United States on January 10, 2023
★★★★★ 5
Rock bottom price, better than rock bottom quality
Color: Black
tl;dr there are definitely better chairs available, even better chairs that aren't that much more money, but if rock bottom is your price target, this one is hard to beat.
I bought my 7-year-old a $30 task chair at Target even knowing it's weight limit of 150 pounds implied it was of very, uh, questionable construction. He weighs 50 pounds though so I figured it'd be fine for occasional use for him. It was basically trash, however.
I found this instead and it's pretty solid for $60 delivered. The instructions are clear and easy to follow. The actual assembly is as easy as it gets for a task chair (snap casters in, put in a couple screws). Be aware that the seat base is 100% plastic, although I'd be astounded if anyone used cast aluminum for a seat base anywhere close to $100. It is not _particularly_ comfortable, ergonomic, or well made, although it is of slightly better construction than I was expecting. I'm 5' 11" and 200 pounds and the word I'd use to describe sitting on it is "acceptable". I suspect the seat foam is easily the weakest link regarding longevity if used by an adult.
The real benefit here is that $60 _feels_ like the correct price for a chair of this quality, whereas a local big box store is going to want close to double that, especially without a "sale" going on.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Easy to assemble, and comfortable!
Color: Blue
I bought this chair for my teenaged son, who has a small student's desk in his room (also ordered and assembled at the same time). This fits perfectly for the small desk, and is reasonably comfortable for a medium-sized adult, teenager, or older child. Once put together, the chair itself appears to work flawlessly, seems comfortable enough, the height is easily adjustable, and of course -- the most important part, according to my son -- "spins silently 'round and 'round really fast for a long time." The blue color is a nice, deep blue hue that works well for him and makes it stand out a little more than your average black chair. I was able to assemble it fairly quickly without issues. My son uses it to sit in for his schoolwork and computer gaming/programming/hobbies at his desk, etc. and he says it's comfortable, even after sitting in it for 1-2 hours at a time.
With this type of chair, you're getting exactly what you pay for and what you see in the pictures. No more, no less. The price is fairly reasonable, it feels sturdy, and if you're looking for an easy and simple office chair for light task work at a computer desk for a teenager or college student with limited space, this is an easy win. While it's not the smallest office chair out there, it's certainly not a large one, either. I am a medium-sized woman at 5'4", and my bottom doesn't hang off of it; that said, a taller/bigger person might want to look into something a little larger for comfort, if they have the space for it. My son is 5'6" (and growing) and slim, so it works perfectly well for him. My husband, who is larger and taller than us, sat in it and said it didn't feel bad...but he was unsure how comfortable it would be sitting in it for longer stretches of time. So...your mileage may vary.
Overall, this was exactly what we were looking for and precisely what we expected for this product, so we're happy. I will update this review should anything change.
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Reviewed in the United States on May 3, 2019
★★★★★ 5
Great small rolling desk chair.
Color: Black
Small footprint for small office. Comfortable. Nice back support and super easy to assemble. Told my 300lb son he’s not to sit on it. It’s my chair.
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Reviewed in the United States on April 7, 2026
★★★★★ 3
Good as a task chair, but terrible for long-term sitting
I have revised and updated this review after two years after getting a replacement chair, downgrading it from 5 stars to 3 stars.
I have owned an office chair from Staples for two years. It was a $200 office mesh chair. It seemed pretty comfortable when sitting in it at the store. Unfortunately, it turned out to be uncomfortable for long sitting duration, I seemed to end up slouching often because it wasn't very supportive. The seat depth was probably longer than optimal for my legs. The mesh seating was not supportive. With these issues, I thought a task chair would be more useful.
But I didn't want to spend so much money on a chair again, so here comes Amazon to the rescue. This chair allows me to sit comfortably with a reasonable seat depth, so I'm now able to sit with proper posture. The foam base initially felt better than the mesh base. This all led to a 5 star rating. After a year and a half, however, it has come to my realization that the foam seating is terribly inadequate for long periods of sitting. Maybe after a year the foam was worn out to the point that it was no longer supportive. After long periods of sitting, I could feel the wood support base. I tried a seat cushion to no avail.
In the end, I got rid of this chair and purchase a chair from one of the high-end office ergonomic chair manufacturers. It cost 10x more than the Amazon chair, but it's night and day with regards to being comfortable. It is worth the cost to protect my back.
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Reviewed in the United States on August 21, 2019