Rotam Mesotrione 480 SC

Manufacturer
Rotam Agrochemical
Category
Herbicides
Registered until
N/A
Registration number
83100-41
Active materials
Links

DIRECTIONS FOR USE
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
DO NOT apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation.

PRODUCT INFORMATION
Rotam Mesotrione 480 SC is a systemic pre-emergence and post-emergence herbicide for selective contact and residual control of broadleaf weeds in asparagus, bluegrass, ryegrass (annual and perennial) and tall fescue grown for seed, bush and caneberries (Crop Group 13-07A and 13-07B), citrus fruit (Crop Group 10-10), cranberry, field corn, flax, oats, okra, pearl millet, pome fruit (Crop Group 11-10), rhubarb, seed corn, yellow popcorn, sweet corn, soybean, sorghum (grain and sweet), stone fruit (Crop Group 12-12), sugarcane, and tree nuts (Crop Group 14-12). If used pre-emergence, weeds take up the product through the soil during emergence. Dry weather conditions can reduce pre-emergent effectiveness of Rotam Mesotrione 480 SC. If at least ¼-inch of rainfall does not occur within 7-10 days of application, rotary hoeing will activate the product. If used post-emergence weeds take up the product through treated foliage and stop growing soon after application. It may take up to two weeks for weeds to die. Rotam Mesotrione 480 SC is absorbed by soil and/or through foliage of emerged weeds.
Rotam Mesotrione 480 SC will not control most species of grass weeds. Rotam Mesotrione 480 SC can be tank-mixed with other herbicides registered to control grass weeds (see tank-mix information in this label for additional information). Rotam Mesotrione 480 SC can be used in combination with a burndown herbicide prior to planting to provide weed control in field corn, seed corn, yellow popcorn, and sweet corn.

RESISTANCE MANAGEMENT
Rotam Mesotrione 480 SC contains mesotrione and is classified in the triketone chemical class as a Group 27 herbicide, 4-hydroxyphenyl-pyruvatedioxygenase inhibitor. Herbicide resistance is defined as the inherited ability of a plant to survive and reproduce following exposure to a dose of herbicide normally lethal to the wild type. In a plant, resistance may be naturally occurring or induced by such techniques as genetic engineering or selection of variants produced by tissue culture or mutagenesis. Any weed population may contain or develop plants that are naturally resistant to Rotam
Mesotrione 480 SC and other Group 27 herbicides. Weed species with acquired resistance to Group 27 herbicides may eventually dominate the weed population if Group 27 herbicides are used repeatedly in the same field or in successive years as the primary method of control for targeted species. This may result in partial or total loss of control of those species by Rotam Mesotrione 480 SC or other Group 27 herbicides.
To delay herbicide resistance, consider the below best practices for resistance management:
Plant into weed-free fields and keep fields as weed-free as possible.
To the extent possible, use a diversified approach toward weed management. Whenever possible incorporate multiple weed-control practices such as mechanical cultivation, biological management practices, and crop rotation.
Fields with difficult to control weeds must be rotated to crops that allow the use of herbicides with alternative mechanisms of action or different management practices.
To the extent possible do not allow weed escapes to produce seeds, roots or tubers. Manage weed seeds at harvest and post-harvest to prevent a buildup of the weed seed-bank.
Prevent field-to-field and within-field movement of weed seed or vegetative propagules. Thoroughly clean plant residues from equipment before leaving fields.
Prevent an influx of weeds into the field by managing field borders. Identify weeds present in the field through scouting and field history and understand their biology. The weedcontrol program must consider all of the weeds present. Difficult to control weeds may require sequential applications of herbicides with differing mechanisms of action. Apply this herbicide at the correct timing and rate needed to control the most difficult weed in the field.

Use a broad-spectrum soil-applied herbicide with a mechanism of action that differs from this product as a foundation in a weed-control program. Do not use more than two applications of this or any other herbicide with the same mechanism of action within a single growing season unless mixed with an herbicide with another mechanism of action with an overlapping spectrum for the difficult-to-control weeds.
If resistance is suspected, treat weed escapes with an herbicide with a different MOA or use non-chemical methods to remove escapes.
Monitor treated weed populations for loss of field efficacy.
Scout field(s) before and after application.
Report lack of performance to registrant or their representative.
Indicators of possible herbicide resistance include: (1) failure to control a weed species normally controlled by the herbicide at the dose applied, especially if control is achieved on adjacent weeds; (2) a spreading patch of noncontrolled plants of a particular weed species; (3) surviving plants mixed with controlled individuals of the same species.

Contact your local sales representative, extension agent, or certified crop advisors to find out if suspected resistant weeds to this MOA have been found in your region. If resistant biotypes of target weeds have been reported, use the application rates of this product specified for your local conditions. Tank mix products so that there are multiple effective mechanisms of action for each target weed.

Registered for cultures
Corn
Asparagus
Caneberries
Citrus
Pome fruits
Stone fruit
Cranberries
Winter flax
Spring flax
Spring oats
Winter oats
Okra
Rhubarbs
Sorghum
Soybeans
Sugarcane