Description
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.
