| Customization: | Available |
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| CAS No.: | 122931-48-0;111991-09-4 |
| Formula: | C14h17n5o7s2;C15h18n6o6s |
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Rimsulfuron is an acetolactate synthase (ALS) inhibitor. It inhibits the synthesis of acetolactate in plants. This action blocks the biosynthesis of branched-chain amino acids. As a result, cell division is suppressed. Sensitive grassy and broadleaf weeds stop growing, which eventually leads to chlorosis, necrosis, and death of the entire plant. Farmers primarily use it to control annual and perennial grassy and broadleaf weeds in corn fields. They can also apply it to potatoes, tomatoes, peppers, and certain vegetables and fruits. Rimsulfuron is one of the few sulfonylurea herbicides that can be used on vegetables and fruits such as grapes, apples, pears, hawthorn, and loquats.
Nicosulfuron is a systemic herbicide that can be absorbed by the stems, leaves, and roots of weeds. It is then translocated within the plant, causing sensitive plants to experience growth stagnation, chlorosis, and gradual death. Under normal conditions, this process takes about 20 to 25 days, but in cooler temperatures, certain perennial weeds may require a longer time to die. The herbicide is most effective when applied before the four-leaf stage; its efficacy decreases when applied to larger seedlings. This product also has pre-emergence herbicidal activity, although it is less active than its post-emergence effects.
Features of Nicosulfuron
Application of Rimsulfuron
Corn Fields:
For spring corn, apply the herbicide after the corn has 2-4 leaves or when the weeds are at the 2-4 leaf stage (once most have emerged). The recommended dosage is 5-15 g (a.i.) per hectare [0.33-1.9 g (a.i.) per acre]. It primarily targets annual weeds like barnyard grass and redroot pigweed. For summer corn, apply the herbicide when the corn has 2-5 leaves, with a recommended dosage of 1.2-1.67 g (a.i.). This application is mainly for controlling annual grassy and broadleaf weeds.
Adding 0.2% non-ionic surfactant (such as silicone, detergent, or laundry powder) is crucial for enhancing the herbicide's efficacy and persistence.
Note: Apply the herbicide before the corn reaches the 4-leaf stage. If the corn exceeds this stage, using it alone or in combination with other herbicides may cause phytotoxicity. Symptoms of phytotoxicity include difficulty in elongation, stunted growth, light leaf color, yellowing, curling and hardening of the heart leaves, and reddening. Recovery typically occurs in 10-15 days. Rimsulfuron can be mixed with atrazine, MCPA, or thifensulfuron (thifensulfuron-methyl) to broaden the weed control spectrum and enhance the effectiveness against broadleaf weeds.
Potato Fields:
For potato fields, apply the herbicide pre-emergence or when the weeds are at the 2-4 leaf stage (once most weeds have emerged). Use 70-120 g of 25% rimsulfuron per hectare, mixed with 30-50 kg of water for spraying. This effectively controls weeds such as burdock, lambsquarters, polygonum, duckweed, chicory, redroot pigweed, mint, barnyard grass, foxtail, crabgrass, and purslane. It can also be used on other Solanaceae crops like peppers, tomatoes, and tobacco. Mixing with quizalofop-P-ethyl , haloxyfop-R-methyl, or metribuzin can enhance efficacy and broaden the weed control spectrum.
Sweet Potato Fields:
In sweet potato fields, use rimsulfuron to control cyperus. Apply it after the sweet potatoes have been transplanted and established but before they grow too large, targeting weeds at the 2-5 leaf stage. Use 5-6 g of 25% rimsulfuron water-dispersible granules per acre, applying it directionally between rows alongside grassy herbicides. Contact with lower leaves has minimal impact, but contact with the growing point may cause yellowing. If phytotoxicity occurs, consider using Diethylaminoethyl hexanoate or a combination of Diethylaminoethyl hexanoate and sodium nitrophenolate with biostimulants for relief.
Pepper Fields:
In pepper fields, apply the herbicide after the seedlings have passed the slow growth stage and when the weeds are at the 3-5 leaf stage. Mixing with quizalofop-P-ethyl or clethodim can enhance control of monocot weeds while also effectively managing common broadleaf weeds like cyperus, amaranth, and purslane.
Note: When applying rimsulfuron in pepper fields, it is essential to use directional spraying.
Tobacco Fields:
For flue-cured tobacco, apply rimsulfuron at the early growth stage (42 days after transplanting) when grassy weeds are at the 5-9 leaf stage and broadleaf weeds are at the 5-10 leaf stage. Use 15 g of 25% rimsulfuron suspension concentrate per hectare for foliar spraying. This treatment provides good control of major annual and biennial weeds in tobacco fields, including crabgrass, barnyard grass, volunteer wheat, purslane, cyperus, lambsquarters, duckweed, broadleaf dock, Nepalese dock, curved barnyard grass, wild pea, and stone lotus.
Application of Nicosulfuron
The best time to use Nicosulfuron:
(1) Ordinary Nicosulfuron without a safener:
It is advisable not to use it when corn is below the 2 leaf stage or above the 6 leaf stage, as it is sensitive and prone to phytotoxicity. If it must be used at more than 6 leaves, it should be applied as a directed spray to avoid contacting the growing point and causing damage.
(2) Nicosulfuronwith a safener:
Compared to ordinary Nicosulfuron, this formulation is relatively safer and can be used after the 5 leaf stage. However, the effectiveness of weed control decreases as the application is delayed, so it is recommended to use it during the 3-5 leaf stage.
Package:
Liquid: 250ml bottle, 500ml bottle, 1L bottle, 5L drum, 20L drum, 200L drum…
Solid: 100g bag, 500g bag, 1kg bag, 25kg bag/drum…
Packaging and labeling are customized according to customer requirements.
| Product name | Pyrazosulfuron-Ethyl |
| Tech grade | 98%TC |
| Formulation | 10%WP,75%WDG,100G/L SC |
| Molecular formula | C14h18n6o7s |
| CAS No. | 93697-74-6 |
| EINECS No. | / |
| Shelf life | 2 Years |
| Product name | Nicosulfuron |
| Tech grade | 95%TC |
| Formulation | 4%OD,75%WDG |
| Molecular formula | C15h18n6o6s |
| CAS No. | 111991-09-4 |
| EC No. | 244-666-2 |
| Shelf life | 2 Years |
Q1: How can you guarantee quality?
A1: Always a pre-production sample before mass production;
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