From Engineering Policy Guide
|Refer to Crop Data Management System's website for label information.|
MoDOT herbicides for 2015 are listed below. You may have additional products not listed from previous years. More detailed information can be gathered from the manufacturer and the label.
2,4-D – In 2011, MoDOT specified the formulation of the 2,4-D from ester-based to amine-based reducing the volatility risk associated with 2,4-D, one of the oldest herbicide on the market. It also has an aquatic herbicide. The product is DMA-4. The amine-based is not as quick to show symptoms but will do the work.
Additives and Adjuvants – This includes drift control (Reign), non-ionic surfactant (Chaos) and a water conditioner (Watersoft).
Aquatic Glyphosate – Rodeo has an aquatic label.
Basal Bark Oil – This is a ready-to-use (RTU) product for dormant and basal stem treatments. It is a combination of 20% Garlon 4E, 1.5% Stalker, 1.5% Milestone and 77% bark oil colored blue and produced to be used in low temperatures.
Escort XP – Used for several years at a very low use rate. Good broadleaf control and great on Chicory. It is a dry flowable and use rate is ¼ to ½ oz per acre on most instances. A higher rate can be used for control of cedar and other brush species. The higher rate will kill or damage turf. It is off of patent so there are generics on the market but it appears the XP formulation makes this product go into and stay in solution better than some others.
Esplanade - A pre-emergent herbicide providing long term, seasonal control on bare ground applications. Must be mixed with other herbicides to address concerns with existing plants such as broadleaf weeds or grasses.
Garlon 3A – This is a more specialized broadleaf herbicide that has aquatic label. It has triclopyr as the active ingredient. Used for broadleaves and small brush. It is off patent and has several other brand names on the market.
Krenite S – Used for several years for side trimming of trees. It is a bud inhibitor. To use this product correctly you should apply in the late summer early fall and NOT cut the limbs or brush the following spring.
Metcel VFM – This is the off brand name often referred to as the generic formulation of Escort XP.
Milestone – This is a liquid herbicide with a low use rate of 5 – 7 oz. per acre. It is very good on broadleaf species and provides so residual effect in the soil. One primary concern we have experienced is the herbicide leaving the site in a heavy rain event which occurs within 8 – 16 hours of application. The herbicide provides excellent control on legumes, which means stay away from soybean fields.
Oust Extra – This is the product MoDOT uses for total vegetation control and is a combination of two products Oust and Escort. It is a dry flowable with the recommended rate of 3 oz. per acre. Over application can leach and create erosion concerns.
Outrider – This is the primary product MoDOT uses for the control of Johnsongrass. Outrider is very specific to Johnsongrass and will not cause damage to other turf species as long as the application rate stays below 1.33 oz. per acre. It is a dry flowable.
Pendulum – Is a preemergent herbicide not allowing seedlings to develop. Used in landscape beds and around established plants.
Plateau – Herbicide used for native grass establishment and seedhead suppression or PGR. Rates are low as higher rates will eliminate fescue.
Perspective - New generation herbicide offering a new mode of action to reduce resistance in plant materials. Is a dry flowable controlling a large variety of broadleaf weeds. Has proven to be very effective on teasel control when applied in the late fall. Rates vary dependent on application times and purpose. Range is from 3 – 5 oz. per acre and can be used as a stand alone product for broadleaf weed control or with a pre-emergent and non-selective herbicide for bare ground treatments.
Rodeo, Roundup Pro, Roundup Pro Concentrate and Glyphosate – All of these are products we have used in recent years and all are Glyphosate-based. Glyphosate is used all over the world which has led to some plants becoming resistant. This herbicide is non-selective meaning it will kill any plant, so be careful. Glyphosate is often added in total vegetation control if there are some green plants at the time of application.