Surmise Pro Herbicide Glufosinate Non-Selective Weed Control

Surmise Pro Herbicide is a professional non-selective, post-emergent herbicide formulated with 24.5% glufosinate-ammonium for control of emerged annual and perennial grasses, broadleaf weeds, sedges, and certain woody species. As a Group 10 herbicide, Surmise Pro inhibits glutamine synthetase, causing rapid leaf and shoot necrosis with visible effects typically appearing within 2 to 4 days under good growing conditions.

Surmise Pro is used for trimming and edging, spot treatments, directed sprays, broadcast noncrop weed control, dormant bermudagrass winter annual weed control, greenhouse and shadehouse weed control, site preparation, farmsteads, industrial areas, recreational areas, public areas, and landscape maintenance. Plants may be safely planted into treated areas after the spray has dried.

Features & Benefits

✓ Non-selective post-emergent control of emerged weeds

✓ Contains 24.5% glufosinate-ammonium

✓ Group 10 herbicide with glutamine synthetase inhibition

✓ Controls many annual and perennial grasses, broadleaf weeds, sedges, and certain woody species

✓ Visible results typically appear within 2 to 4 days under good growing conditions

✓ Minimal soil residual activity; plants may be planted after spray has dried

✓ Useful for trimming, edging, spot treatments, directed sprays, and site preparation

✓ No surfactant required when applying this product

Labeled Use Sites

Trimming and edging areas, landscape beds, around trees and shrubs, buildings and foundations, sign posts, light posts, fences, driveways, sidewalks, paths, parking areas, golf course cart paths, around sand traps, airfields, airports, alleys, lanes, trails, access roads, campgrounds, educational facilities, highways, roadsides, medians, guardrails, rights-of-way, recreation areas, resorts, schools, sports areas, storage areas, tennis courts, walkways, dormant bermudagrass, ornamentals, Christmas trees, greenhouses, shadehouses, wildlife food plots, industrial sites, railroads, farmsteads, and noncrop areas.

Target Weeds

Chickweed, clover, cocklebur, filaree, jimsonweed, kochia, London rocket, mallow, marestail, purslane, shepherdspurse, smartweed, annual sowthistle, bindweed, burdock, Canada thistle, curly dock, dandelion, dogbane, fleabane, goldenrod, horsetail, lambsquarters, leafy spurge, mugwort, musk thistle, nettle, nightshade, pennycress, pigweed, plantain, prickly lettuce, ragweed, Russian thistle, tansy mustard, velvetleaf, wild buckwheat, wild mustard, wild onion, wild rose, woodsorrel, yellow rocket, barnyardgrass, crabgrass, goosegrass, foxtail, annual bluegrass, bahiagrass, bermudagrass, carpetgrass, dallisgrass, fescue, Kentucky bluegrass, nutsedge, quackgrass, ryegrass, sandbur, torpedograss, vaseygrass, wild oat, and other listed weeds.

Application Notes

Surmise Pro is a foliar-active herbicide and works best when weeds are actively growing. Thorough spray coverage is important for consistent control. Weed control may be reduced when applications are made to weeds under drought stress, cool temperatures, or dense growth conditions.

For spot or directed applications, use 1 to 2 fl. oz. per gallon of water depending on weed size and growth stage. For broadcast applications, apply 32 to 80 fl. oz. per acre in a minimum of 40 gallons of water per acre. Surmise Pro is rainfast in as little as 30 minutes and up to 4 hours depending on environmental conditions, weed species, and application rate.

No surfactant is required when applying this product. Ammonium sulfate may improve weed control where hard water is a concern. Do not apply by air, through irrigation systems, or allow grazing of treated vegetation.

Product Information

Active Ingredient: Glufosinate-Ammonium 24.5%
Active Ingredient Per Gallon: 2.34 lbs. ai/gal.
HRAC Group: Group 10 Herbicide
Mode of Action: Glutamine Synthetase Inhibitor
Formulation: Water-Soluble Liquid
EPA Reg. No.: 42750-365-89442
Manufacturer: Prime Source, a division of Albaugh LLC