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Commonly-Used Herbicides for Early Conifer Release

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Commonly-Used Herbicides for Early Conifer Release Commonly-used Herbicides for Early Conifer Release Herbicide Products Time of Year Target Resistant Late in second growing season following Many hardwoods, annual and perennial grasses Elms, woody legumes, wax myrtle, imazapyr Arsenal AC, Polaris AC planting. Broadcast foliar application or and forbs, Bermuda, fescue, crabgrass, dog croton, blackberry, buckeye, baccharis, directed foliar. fennel, pigweed, greenbriar, morning glory. hickory, pine Accord XRT, Later summer or early fall, after formation of Many hardwoods (black locust, persimmon, Red maple, blackgum, hickory, glyphosate Rodeo, Roundup Pro final conifer resting bud. Broadcast foliar sassafras, sumac, sweetgum, yellow-poplar), dogwood, greenbrier, Virginia creeper, Concentrate application. most annual and perennial grasses and forbs. trumpet creeper Active growth following full leaf expansion. Wide range of annual and perennial broadleaf metsulfuron Escort XP, Patriot Herbaceous weeds: apply pre-emergence or weeds and woody plants, kudzu, multiflora Some grasses, yellow poplar methyl shortly thereafter. Broadcast foliar application. rose. Dormant season prior to conifer bud break. Bermuda, broomsedge, croton, sulfometuron Annual grasses and forbs and certain perennial Oust XP, Spyder, SFM 75 Broadcast foliar spray for herbaceous weed trumper creeper, Johnsongrass, methyl herbs. control. panicums sulfometuron Active growth following full leaf expansion. Various woody plants, vines and herbaceous methyl + Oust Extra, Spyder Extra, Herbaceous weeds: apply pre-emergence or weeds including blackberry. Suppression of Conifers somewhat metsulfuron SFM Extra shortly thereafter. Broadcast foliar spray, bermudagrass and Johnsongrass methyl loblolly pine only. Vastlan, Element 3A, Many hardwoods, vines, and broadleaf weeds Tahoe 3A, Element During periods of active growth. Directed spray Persimmon, black cherry, sumac, some triclopyr such as dog fennel, pigweed, greenbrier, 4, Garlon 4 Ultra, Tahoe application only. oaks and hickories morning glory, sericea lespedeza. 4E, Garlon XRT Spring to late summer: broadcast foliar overtop Broadleaf weeds such as blackberry, morning aminopyralid Milestone only on longleaf. Do not use over the top of glory; vetch, horseweed, pigweed, sicklepod, Young longleaf pine loblolly or slash pine. ragweed, and wilding pine suppression. Mid to late summer, after conifers have Certain broadleaf weeds including thistle, Transline, Clean Slate, hardened off. Broadcast foliar application made clopyralid sicklepod, morning glory, ragweed, coffeeweed, Grasses and many woody plants Clopyralid 3 over the top of tolerant tree species or directed wisteria, kudzu and many legume species spray for broadleaf weed control. Grasses, yellow-poplar, eastern Many hardwoods, blackberry, crabgrass, redcedar, sassafras, blackgum, hollies, Velpar DF, Velossa, Spring after bud break and before full leaf hexazinone fescue, lespedeza, horseweed, dog fennel, American beautyberry, Bermudagrass, Velpar L expansion. Broadcast foliar application. annual and perennial rye grass white snakeroot, broomsedge, Johnsongrass, sicklepod, trumpet vine Modified from Colby Lambert, Mark Megalos, James Jeuck. (2016). 2016 Quick Guide to Forestry Herbicides Used for Softwood and Hardwood Site Preparation and Release. .
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