SKU: 14394832483
staple herbicide

staple herbicide Winsta Herbicide FMC Bispyribac Sodium + Bensulfuron Methyl – IR Farm

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Description

staple herbicide Winsta Herbicide FMC Bispyribac Sodium + Bensulfuron Methyl – IR FarmWinsta Herbicide FMC Winsta Herbicide FMC 30WP is a powerful, water dispersible (WP) herbicide manufactured by FMC Corporation, formulated specifically to provide pre and post emergence weed control in rice fields. With an effective combination of two active ingredients Bispyribac Sodium and Bensulfuron Methyl this herbicide stands out as a reliable solution for managing a wide spectrum of weeds in rice cultivation. Whether you are managing annual

Winsta Herbicide FMC

Winsta Herbicide FMC 30WP is a powerful, water-dispersible (WP) herbicide manufactured by FMC Corporation, formulated specifically to provide pre- and post-emergence weed control in rice fields. With an effective combination of two active ingredients — Bispyribac-Sodium and Bensulfuron-Methyl — this herbicide stands out as a reliable solution for managing a wide spectrum of weeds in rice cultivation. 

Whether you are managing annual weeds or dealing with more challenging perennial weeds, Winsta 30WP offers long-lasting results that enhance the productivity and health of your rice crop.

Key Features of Winsta Herbicide FMC 30WP

Dual Active Ingredients for Broad-Spectrum Control

Winsta 30WP uses a combination of two potent active ingredients:

Bispyribac-Sodium (18% w/w): An ALS (acetolactate synthase) inhibitor, bispyribac-sodium disrupts the production of essential amino acids like valine and isoleucine in weeds. This action prevents cell division and ultimately stunts weed growth.

Bensulfuron-Methyl (12% w/w): An AHAS (acetohydroxyacid synthase) inhibitor, this active ingredient complements bispyribac-sodium by halting amino acid synthesis, thus interfering with the metabolic processes vital for weed development.

Systemic Action

Winsta Herbicide FMC 30WP is absorbed by both the leaves and roots of weeds, ensuring thorough translocation within the plant. This means that even if the weeds are not directly contacted by the spray, they will still experience effective control, offering a higher level of efficacy.

Selective for Rice Crops

One of the unique selling points of Winsta 30WP is its selective action in rice fields. The herbicide is metabolized quickly by the rice plant, meaning it doesn't cause harm to the rice crop while effectively controlling the weeds around it.

Flexible Application Timing

Winsta Herbicide FMC 30WP provides flexibility for rice farmers by offering both pre-emergence and post-emergence weed control. This means it can be applied before weeds emerge or after they have already sprouted, depending on the needs of your field and the weed pressure you are facing.

Mode Of Action And Selectivity In Rice

Winsta Herbicide FMC 30WP works as a systemic herbicide, meaning it enters the plant through both the leaves and roots, then translocates throughout the entire plant. This mode of action is crucial for ensuring effective weed control, especially when weeds are in early stages of growth or are difficult to target directly with surface sprays.

The herbicide's selectivity for rice crops is achieved due to its rapid metabolism within the rice plant. Rice plants are able to break down the herbicide quickly, preventing damage to the crop while still effectively managing weed populations in the field. This selectivity allows farmers to use Winsta 30WP without worrying about unintended harm to their rice, making it a dependable tool in integrated weed management strategies.

Weeds Controlled by Winsta Herbicide FMC

Winsta Herbicide FMC is known for its broad-spectrum weed control, addressing a wide variety of weed species that can be problematic in rice cultivation. The herbicide is effective on:

  • Annual grasses (e.g., barnyard grass, water grass)
  • Perennial grasses (e.g., elephant grass, cogon grass)
  • Sedges (e.g., yellow nutsedge, purple nutsedge)
  • Broadleaf weeds (e.g., duckweed, water spinach)
  • Other problem weeds found in rice fields, such as Echinochloa, Cyperus species, and Ischaemum species.

How To Use Winsta Herbicide FMC 30WP Effectively?

Proper application is crucial for the best results when using Winsta Herbicide FMC 30WP. The herbicide can be used effectively during both pre-emergence and post-emergence stages, depending on the type of weed control needed.

Application Rates and Guidelines

  • Pre-Emergence Application: Apply Winsta Herbicide FMC 30WP as a broadcast spray to the field before weed seeds have germinated. This helps prevent the weeds from sprouting and taking hold in the field.
  • Post-Emergence Application: When applying post-emergence, make sure to target young, actively growing weeds. For optimal results, apply the herbicide when weeds are in the 2-4 leaf stage of growth.

Application Type

Timing

Recommended Rate

Weeds Controlled

Pre-Emergence

Before weed seeds germinate

60 grams per acre

Annual grasses, sedges, and broadleaf weeds

Post-Emergence

After weeds have emerged (2-4 leaf stage)

60 grams per acre

Perennial grasses, sedges, and broadleaf weeds

Frequently Asked Questions

Is Winsta Herbicide FMC 30WP safe for rice?

Yes, Winsta Herbicide FMC 30WP is selective for rice and is metabolized quickly by rice plants, ensuring that it doesn't harm the crop while effectively controlling weeds.

Can Winsta be applied at any stage of rice growth?

Winsta 30WP can be applied at both pre- and post-emergence stages, offering flexibility in weed control strategies. For pre-emergence, apply before weed seeds have germinated, and for post-emergence, apply when weeds are in the 2-4 leaf stage.

Can Winsta 30WP be used in combination with other herbicides?

Yes, Winsta 30WP can be used as part of an integrated weed management strategy and can be combined with other herbicides, provided they target different modes of action to minimize resistance risks.

Shipping Notes
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Exchange/Return Notes
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SKU: 14394832483

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4.2 ★★★★★
Based on 22 reviews
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Kathleen Kowalski
Draper, US
★★★★★ 4
Not like the pictures but well worth the money
Size: Queen, Style: 1 Green
4 stars because it is not nearly as padded as the descriptions and images make it seem. The filling flattens easily and doesn’t provide any support. That being said it does make my bed more comfortable and soft and has improved my sleep quality. I have a 12 in soft/medium firm memory foam mattress that was wonderful for the last +2 years till my back surgery ~6 months ago. Since then my joints ached when trying to sleep and when waking, my back would be all out of place and achey, and I was untested. Since buying this topper these issues have improved by 80% or more. It is a great addition to my bed and I don’t regret buying it.
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Reviewed in the United States on May 18, 2026
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Verified Purchase
Aurihazuma
Carnegie, US
★★★★★ 5
OMGAAAAAWD!!! HEAVEN!
Size: Full, Style: 1 Green, Size: Full, Style: 1 Green
All I can say is OMGAWD!!! Thank You~!~!! We got a new mattress after the previous "The Cloud" Serta pillow top (I'll never have another one) lasted for less than 8 years and I totally despised not being able to flip it models failed.. The new model is also a hybrid mattress, but is flippable and was just a bit too firm. I was feeling progressively more and more uncomfortable as the nights wore on, and with my serious back problems.. this just wouldn't do.. So I began searching "Our Beloved Amazon - heh" for an alternative, and after quite some time and research finally landed on this wonderful topper. It's like sleeping on top of well stuffed Ida Down on top of piles of silk. So very comfortable and my back pain is virtually completely gone now -such a relief! Be sure you follow the instructions on care and initial setup. You Do have to let it fluff out because of the vacuum packing (it wasn't really heavy btw). Mine decompacted fine, but I still want to run it through the dryer when we next venture to the laundromat. Shake it a little here and there when you take it out and at least let it sit for a few hours. It was just as easy to put on the bed as a regular mattress protector, and I also put my regular protector on top of it for added security and waterproofing. The materials feel like they are of good quality.. Viscose is also called Rayon and can be made from a number of different materials, so take good care of it and follow the washing instructions carefully. Delicate only, and cool only, and use only a horizontal washer that does not have a central agitator or you will tear it up. Only dry on low temperatures (preferably in a very larger laundromat dryer so it has plenty of room to loosely toss about. Drying it in the sun is alright as well, but it won't fluff like you want it to. I recommend using a waterproof and bug proof protector on top of this just to be sure you take care of it properly. Now I want to buy one for both my Mother and my Aunt HAHAHHA! TG it is in my price range.. barely. (Addendum: I have run it through the big dryer at the laundromat.. The dryer was cold so I gave it a quick warm on medium for anout 2 minutes and then tumbled on low for quite some time. The topper was fully ready in about 25 minutes, but I decided to elt it go on low while I did the rest of my laundry. It did perfectly and is just like the manufacturer photos.. I was so tired when I arrived home that I just flaked out on top of everything.. It was so comfortable that I was out liek a light in very short order and slept beautifully. I can attest that if you use this below your sheets instead of covering it with an additional mattress protector, that it does have better cooling effect. I will of course keep my waterproof/bugproof protector on top just for safety. The cat is nutz about the new topper as well.) Namaste.
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Reviewed in the United States on August 6, 2025
C
Verified Purchase
Chelsey Yarno
Grantham, US
★★★★★ 5
Pleasantly surprised!
Size: Queen, Style: 2 Dark Gray
I had been searching for a quality mattress topper in hopes of extending the life of our mattress. I compared a few options and kept coming back to this one. I have to admit I was skeptical because the price point was lower than many options. This topper is SO comfortable and soft! I left it laying out for a couple hours and then followed the instructions to put it in the dryer. Worked like a charm. I’ve been going through issues with hip pain and this has made a difference in my sleep and I’m waking up in less pain. So happy I tried this out. The padding is so comfortable and fit on the mattress using the same sheet we had.
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Reviewed in the United States on May 17, 2026
K
Verified Purchase
KeepsGettingBetter
Carnegie, US
★★★★★ 5
So perfectly soft
Size: King, Style: 2 Dark Gray
My husband was complaining about the mattress, and wants to spend a lot of money on a new one like the ones at the Waldorf. I asked him to give me a chance to try to fix it first. Watched youtube videos about hotel style beds, and landed on the need for a mattress topper. This one is so... very... comfortable. I thought the grid pattern would bother me, but nope. You don't realize how much heat you soak up from your mattress until you get a nice airy layer in between. I almost completely stopped sweating at night, and he's stopped complaining about hurting as much. This is another of those items that I'm scared of washing too much, but it's held up with care and caution. If it starts to get a bit too squished, I just fluff it in the dryer and the padding poofs right back up. The sides are deep and my mattress sinks right into the pocket with no pulling. I have bad back pain and I am certain this has been helping support my back a bit better, so I wake up more refreshed. I'm sorta popping out of bed like I used to years ago. He still plans on a new mattress, but this has saved us money, for now, and when we get the new one, this will layer on top like a dream. I'm glad I took the chance on this, it has really improved our rest, and that's so important.
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Reviewed in the United States on May 16, 2026
C
Verified Purchase
Cherokee
Lexington, US
★★★★★ 4
Soft and pretty
Size: Full, Style: 1 Green
Not as thick as I thought it would be. That doesn't matter, though. Being thinner made it easier to handle and I like that. Actually, over all this is a good product. Placing it in the outdoors to sun out a bit took the odor away quickly. I think my company will be impressed with the comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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