WINTER AND SPRING WHEAT INCLUDING DURUM - GRASS WEEDS CONTROLLED
RIMFIRE Max Herbicide is intended for application as a foliar spray in winter and spring wheat (including durum) for control of annual grasses and broadleaf weeds.
ENVIRONMENTAL AND BIOLOGICAL ACTIVITY
RIMFIRE Max Herbicide is absorbed by foliage and roots of weeds and offers contact and residual weed control. RIMFIRE Max Herbicide provides the most consistent control when applied to actively growing weeds. RIMFIRE Max Herbicide is active against many important grass and broadleaf weeds. Environmental conditions which support vigorous growth of crop and weeds also result in highest herbicidal activity. Following application, symptoms of herbicidal activity may develop within several days. Speed of herbicide action depends on environmental conditions and increases with increasing temperature and moisture.
Sensitive weeds quickly stop growing and no longer compete with the crop. Visible signs of activity include cessation of elongation, yellowing and/or reddening of weeds, and finally plant death.
Abnormal environmental conditions (excess soil moisture or drought, extreme cold weather) can influence crop tolerance and herbicidal activity and may cause temporary response of the crop or reduced levels of weed control. This may result in weed stunting, rather than weed death. However, weed competition will be greatly reduced, and should permit normal crop development. Crop response may occur when frost occurs shortly after an application of RIMFIRE Max Herbicide to actively growing wheat.
RIMFIRE Max Herbicide may be used on winter and spring wheat, including durum.
RIMFIRE Max Herbicide is a water dispersible granule that does not include an adjuvant. A recommended adjuvant must be tankmixed with RIMFIRE Max Herbicide according to the guidelines as described in the MIXING INSTRUCTIONS section.
RIMFIRE Max Herbicide offers the flexibility to choose between three distinct adjuvant systems including 1) methylated seed oil or 2) “basic blend” type adjuvant, 3) non-ionic surfactant plus ammonium nitrogen fertilizer. A methylated seed oil, basic blend adjuvant or a non-ionic surfactant (NIS) plus ammonium nitrogen fertilizer must be tankmixed with RIMFIRE Max Herbicide.
Do not use additives that alter the spray solution below 6.0 pH. Best results are obtained at spray solution pH of 6.0 – 8.0.
Organosilicone-based surfactants or crop oil concentrate surfactants are not recommended for use with RIMFIRE Max Herbicide.
For further information about the adjuvant listed, please see the label.
RIMFIRE Max Herbicide should be applied to actively growing wheat in the spring.
RIMFIRE Max Herbicide provides consistent performance when applied with water as the spray carrier and the appropriate additive is added to the spray solution. Properly calibrated ground or aerial (fixed wing or helicopter) application equipment may be used to apply RIMFIRE Max Herbicide postemergence as a foliar spray. Weed infestations should be treated before they become competitive with the crop.
Thorough coverage of weeds is necessary to obtain good weed control. The use of nozzles and spray pressure that deliver MEDIUM spray droplets as indicated in the nozzle manufacturer’s catalogs and in accordance with ASAE Standard S-572 are highly recommended for optimum spray coverage and canopy penetration.
Select spray nozzles that provide best spray distribution and weed coverage at the appropriate spray pressure. Avoid uneven spray distribution, skips, overlaps, and spray drift.
Do not apply RIMFIRE Max Herbicide through any type of irrigation system.
Apply 3 ounces/acre of RIMFIRE Max Herbicide to wheat from emergence (fully expanded first true leaf) up to flag leaf emergence.
Do not apply more than a total of 3 ounces/acre of RIMFIRE Max Herbicide per season.
RIMFIRE Max Herbicide can be applied broadcast in 10 or more gallons of water per acre. For weed control in dense weed canopies, use 15 or more gallons of water per acre. Weed infestations should be treated before they become competitive with the crop.
The use of 80-degree or 110-degree flat-fan nozzles is highly recommended for optimum spray coverage and canopy penetration. To get uniform spray coverage, use nozzles and pressure that deliver MEDIUM spray droplets as indicated in nozzle manufacturer’s catalogs and in accordance with ASAE standard S-572. Use screens that are 50 mesh or larger.
Ground speed for application should not exceed 10 mph.
Calibrate the spray equipment prior to use. RIMFIRE Max Herbicide should be applied in a minimum of 5 gallons of water per broadcast acre. Weed infestations should be treated before they become competitive with the crop.
To get uniform spray coverage, use nozzles and pressure that deliver MEDIUM spray droplets as indicated in nozzle manufacturer’s catalogs and in accordance with ASAE standard S-572. DO NOT use raindrop nozzles.
Aerial applications with this product should be made at a maximum height of 10 feet above the crop with low drift nozzles. Avoid application under conditions where uniform coverage cannot be obtained or where excessive spray drift may occur.
Flagmen and loaders should avoid inhalation of spray mist and prolonged contact with skin.
See the Spray Drift Management section of the label for additional information on proper application of RIMFIRE Max Herbicide.
See “MIXING INSTRUCTIONS” section on the label for mixing application instruction information.
PRECAUTIONS FOR USE
- Use adjuvants as specified on the label.
- RIMFIRE Max Herbicide is rainfast 4 hours after application to most weed species. Rainfall within 4 hours may result in reduced weed control.
- Applications should be made to actively growing weeds. Weed control may be reduced when weeds are under stress due to severe weather conditions, drought, very cold temperatures, etc. Weed control may be reduced if the herbicide application is made under dry, dusty conditions – especially in the wheel track areas. Ground speed for application should not exceed 10 mph.
RESTRICTIONS FOR USE
- Do not apply RIMFIRE Max Herbicide to crops undersown with grass or legume species.
- Do not make more than one application of RIMFIRE Max Herbicide per season.
- Do not apply more than 3 ounces/acre of RIMFIRE Max Herbicide per season.
- Do not apply when wind causes drift to off-site vegetation as injury may occur. Small amounts of RIMFIRE Max Herbicide via drift or tank contamination can cause severe damage to crops other than wheat. Careful management of spray drift and tank cleanout is required.
- Do not apply RIMFIRE Max Herbicide in tank mixture with malathion, mancozeb, phosphorodithioate (Di-Syston), or methyl parathion as unacceptable crop phytotoxicity may occur.
- Do not apply RIMFIRE Max Herbicide in tank mixture with tebuconazole.
- Do not harvest wheat for forage before 30 days or grain and straw 71 days after a RIMFIRE Max Herbicide application.
WINTER AND SPRING WHEAT INCLUDING DURUM
Unless otherwise recommended by Bayer CropScience, do not use less than 3 oz per acre of RIMFIRE Max Herbicide.
Apply RIMFIRE Max Herbicide at 3 ounces/acre to wheat in spring as a single application to actively growing weeds. Do not exceed a product application rate of 3 ounces/acre in a single application in the spring.
Cheat (True cheat), Barnyardgrass, Foxtail barley, Green foxtail, Japanese brome, Persian darnel, Wild oat, Yellow Foxtail: These weeds will be controlled when RIMFIRE Max Herbicide is applied at the pre-tiller stage of weed growth.
See label for recommended tankmix partners.