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Gramoxone® Max Temperature Inversions Applications should not occur during a temperature inversion because drift potential is high. Temperature inversions restrict vertical air mixing,which causes small suspended droplets to remain in a concentrated cloud. This cloud can move in unpredictable directions due to the light variable winds common during inversions. Temperature inversions are characterized by increasing tempera- tures with altitude and are common on nights with limited cloud cover and light to no wind.They begin to form as the sun sets and often continue into the morning.Their presence can be indicated by ground fog; however, if fog is not present, inversions can also be identified by the movement of smoke from a ground source or an aircraft smoke generator.Smoke that layers and moves laterally in a concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates good vertical air mixing. Sensitive Areas The pesticide should only be applied when the potential for drift to adjacent sensitive areas(e.g.,res- idential areas, bodies of water, known habitat for threatened or endangered species, non-target crops)is minimal (e.g.,when wind is blowing away from the sensitive areas). GENERAL INFORMATION Gramoxone Max is a contact herbicide used to control or suppress a broad spectrum of emerged weeds. Gramoxone Max controls most small annual weeds - both broadleaves and grasses, and suppresses perennial weeds by destroying green foliage. Gramoxone Max can also be used as a desiccant/defoliant at harvest. _ Gramoxone Max is formulated as a liquid which contains 3 lbs. of active ingredient per gallon.The _ formulation contains a nontoxic odor and an emetic(an agent which will induce vomiting if the prod- uct is swallowed). The odor is included in the formulation to help prevent accidental ingestion of Gramoxone Max. Gramoxone Max is rapidly absorbed by green plant tissue and interacts with the photosynthetic process to produce superoxides which destroy the plant cells.Gramoxone Max requires actively grow- ing green plant tissue to function.Thorough coverage of all green foliage is essential for effective weed control and for effective crop desiccation/defoliation. Gramoxone Max is not as effective on drought-stressed weeds,weeds with little green foliage(i.e.,mowed or cut weeds),or mature woody bark of trees and vines. Clay and organic matter rapidly tie up Gramoxone Max.As a result,Gramoxone Max has no residual soil activity to affect later-planted crops or later germinating weeds. ROTATIONAL CROPS All rotational crops may be planted immediately after the last application of Gramoxone Max. .� RAINFASTNESS Because Gramoxone Max is rapidly absorbed by the weed foliage, rain occurring 30 minutes or more after application will have no effect on the activity of Gramoxone Max. APPLICATION -� Since Gramoxone Max is a contact-type herbicide,it is essential to obtain complete coverage of target weeds to get good control. Improper application technique and/or application to large,stressed, or mown weeds will usually result in unacceptable weed control and unacceptable crop desiccation/ defoliation. Complete coverage is also essential for good crop desiccation/defoliation. See details below for specific application instructions. USE OF A NONIONIC SURFACTANT OR CROP OIL CONCENTRATE Always add one of the following(Failure to use one of the following at recommended rates will result in reduced performance of Gramoxone Max.) Nonionic Surfactant:Add nonionic surfactant containing 75%or more surface-active agent at 0.125% v/v(1 pt./100 gals.),OR add a nonionic surfactant containing 50-74%surface-active agent at 0.25%v/v (2 ptsJ100 gals.),of the finished spray volume for ground applications. For aerial applications,add a nonionic surfactant at 0.25%v/v(2 ptsJ100 gals.)of the finished spray volume. Crop Oil Concentrate:Add a nonphytotoxic crop oil concentrate containing 15-20% approved emul- sifier, at 1.0% v/v (1 gal./100 gals.) of the finished spray volume for ground applications. For aerial applications, add 1 pt. of crop oil concentrate per acre. Do not use crop oil concentrate when using Gramoxone Max for cotton harvest aid. NOZZLE SELECTION .- The use of flat-fan nozzles will result in the most effective application of Gramoxone Max. Flood nozzles are generally not as good as flat fans since they produce large uneven droplets.The use of flood nozzles may result in reduced weed control due to inadequate coverage.