Protection Measures Selection Tool

2,4-D amine. 2,4-D amine acts as a growth-regulating hormone on broad-leaf plants, being absorbed by leaves, stems and roots, and accumulating in a plant’s growing tips. If an applicant uses 2,4 D amine, this action requires a 15-feet buffer when hand applied, and a 50-foot buffer when it is applied using a backpack sprayer.
Aminopyralid. This is a relatively new selective herbicide first registered for use in 2005. It is used to control broadleaf weeds, and is from the same family of herbicides as Clopyralid, Picloram and Triclopyr. Propose to use Aminopyralid for the selective control of broadleaf weeds.
Chlorsulfuron. This herbicide is used to control broadleaf weeds and some annual grasses. Chlorsulfuron is readily absorbed from the soil by plants. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Clethodim. Clethodim is a post emergence herbicide for control of annual and perennial grasses, and is applied as a ground broadcast spray or as a spot or localized spray. This Program does not allow it for broadcast application; it is allowed for hand application and backpack sprayer, both with a 50-foot buffer.
Clopyralid. Clopyralid is a relatively new and very selective herbicide. It is very effective against knapweeds, hawkweeds and Canada thistle. Clopyralid does not bind tightly to soil, and thus would seem to have a high potential for leaching. That potential is functionally reduced by the relatively rapid degradation of Copyralid in soil. It is one of the few herbicides that this Program proposes to allow up to the waterline (for hand application), but requires a 100-foot buffer for broadcast application. This Program only allows for one treatment per year.
Dicamba. This Program proposes to use Dicamba to control broadleaf weeds, brush and vines. The Program does not allow any broadcast application of Dicamba (because of issues associated with drift) for any project. Leaves and roots absorb Dicamba and it moves through the plant. It should be applied during active plant growth periods, with spot and basal bark periodic application during dormancy. It does not bind to soil particles, and microbes appear to be the primary source of chemical breakdown in soil. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Glyphosate 1 (aquatic). Glyphosate is a nonselective herbicide used to control grasses and herbaceous plants; it is the most commonly used herbicide in the world. It is moderately persistent in soil, with an estimated average half-life of 47 days (range 1-174 days). Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Imazapic. Imazapic is used to control grasses, broadleaves, vines, and for turf height suppression in non-cropland areas. The Program proposes to use Imazapic in noxious weed control and rights-of-way management. The Program proposes to allow its use up to the waterline with hand injection methods, and 15-foot buffers for backpack sprayer application, and 100-foot buffers for broadcast application.
Imazapyr. Imazapyr is used to control a variety of grasses, broadleaf weeds, vines and brush species. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Metsulfuron methyl. The Escort formulation of this product will be used to control brush, certain woody plants, broadleaf weeds and annual grasses. It is active in soil and is absorbed from the soil by plants. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Picloram. This is a restricted-use pesticide labeled for non-cropland forestry, rangeland, right of-way, and roadside weed control. It is a growth inhibitor and is used to control a variety of broadleaf weed species. It is absorbed through the leaves and roots, and accumulates in new growth. The use of this herbicide is restricted to hand applications only (no broadcast applications) with a 25+ foot buffer and no use on sandy or riverwash soils. The buffers and application methods greatly minimize the risk of exposure to listed fish and their prey species.
Sethoxydim. This herbicide is a selective post-emergence pesticide for control of annual and perennial grasses. Its mode of action is lipid biosynthesis inhibition. Project design criteria and conservation measures sharply reduce the risk of exposure. The Program imposes a 50-foot no application buffer for both spot spraying and hand application, and a 100-foot buffer for broadcast application. Other measures for wind speed, weather, etc., also reduce the risk of exposure.
Sulfometuron-methyl. At proposed application rates, sulfometuron methyl is highly effective for killing seedlings of several broadleaves and grasses. The Program expects that no chronic exposure would occur because the herbicide degrades relatively rapidly. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.
Triclopyr (TEA). The environmental fate of Triclopyr has been studied extensively. This formulation of Triclopyr is not highly mobile, although soil adsorption decreases with decreasing organic matter and increasing pH. Buffer and application methods will adhere to applicable measures identified in section 1.3.11.10 Herbicide Use Protection Measures.