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~~ CI 1 1 Aerial Application: AvciC spray Crrft at the apoliration site. The InteraCtpn of many equipment-and-weatherrelated factors determine me potential for soray dnft. Users are responsible for considenng all Nese factors when making decisions. The following dnH management requirements must Ca followed ro avoid oH-target daft movement from aerial appliotions: 1. The distance of ;he outer mast opereting nozzles on the Codm must not exceed La he IengN of the wingspan or rotor. 2. Npales must always point backward parallel wim Ne air stream and never Se pointed Cpwnwams more Nan a5 degrees. `Nhere states have more sNngent regulations. Ney should be observed. The applicator should be familiar with and take inro account Ne information covered in tie fallowing Aerial Drift Reduction Advisory. [This infonnadon is advisory in nature and does not superseCe mandatory label regwrements.) Aanal Drill Reduction Advisory Informatlon On Droplet Siza: Tha most eHeCiva way to reduce drift potential is to apply large tlrcplets. The bast Cnft management strategy is ro apply the largest droplets that provitle sufficient coverage ono control. Applying larger droplets reduces dnft potential. but will not prevent dnft if appiicetions are mace improperty, of under unfavorable environmental conditions (see Wind. 7emperture and Humidhy. and Temperature Inversions). Controlling Droplet Size: Volume -Use high Bow rate nozzles to apply the highest practical soray volume. Noes •wiN nigher •a[ea Bows produce larger droplets. • Pressure - Do not exceed Ne noels manufac:ure(s recommended pressures. For many npale types lower pressure produces target droFletS. When highef flow rates are neeCed, use higher flow rate npzzles insteatl otincreasing pressure. • Number pf Nozzles -Use the minimum number p( noL7es Nat provide uniform coverege. • Noale Orientation • ONenting nozzles so Nat the spray is released parallel to the airstream produced !anger droplets than oNer onemaNons and is the recommended practice. Signfiont deflectlon from horizontal will reduce droplet size and increase Cnft potential. • Npz~e Type - Use a noels type mat is designed (or tie intended aopiiotlan. `NiM most noels types. nanower Spray angles produce larger droplets. CansiCer using low-dnft nozzles. Solid stream nodes onentetl straight hack protluce me largest droplets and Na lowest drift. Boom Length: Fcr some use patterns, reducing the effective boom !engN !o less Nan 3f6 of Ne wingspan ar rotor IengN may further reduce dnft without reducng swath widN. ApplipNon Nrright AooiipNons snauM not Se made at a height greater Nan 10 feet above the tap of the lamjesi giants unless a greater hetgm is required far aRCaft safety. Making apPlicaions at the !owes[ heght mat is safe reduces exposure of droplers to evaporation antl wind. Swath Adjustment: When applications are mace •.vith a crosswind, me swam wail be displaced Cownwarc. Therefore, on me up and downwintl edges of the yield. the applicator must compensate for this displacement by aCjusting the path cf the atraaft upwind. Swam aajustmen[ tlisiance should Increase, with increasing dnft potential (higher wing smaller Crops, arc.; Wind: Cnft potential is lowest between wind speeds of 2-70 mph. However, many factors, including droplet size arM equipment ype Determine Cnft potential at any given speed. Application shouro be avoided oelow 2 mph due to variable wino Cirectipn and high imerswn PatenUal. NOTE: Local terrain on inFlUence wiM pattenfS Every acplicaror should be familiar with local wind patterns and how Ney affect spray dnft. Temperattre And Humidity: When making apPlicaoons in low rehative humidity, set up epuipment ro produce larger droplets to compensate for evapomtlan. Coplet evaporation is most -severe when mndilions are loth ho[ and dry. Temperature Invereiona: Applications should not occtu during a- 'ool. low level temperature inversion bepuse dnft potential is high. Temperature inversions restrict vertical air mining, which causes small suspended droplets to remain in a Concentrated cloud. This cloud can move in unoredicadle tlirectidns due ro Ne light variable winos cpmman during inversions. Temperature inversions are cnarac:enzed by increasing temperattues with altitude antl are common on nights •nim limited cloud cover and light to tm wind. They begin ro form as tie sun sets antl often continue into Ne rooming. Their presence can be indicated by grcurtd fog: however. if fog is not present, inversions can also be identified Sy the movement of the smoke fmm a ground SCUroe df ar1 airo2R Smoke genemtpf. Smoke Naf!ayers and maV@s laterally in a oncentra[ed oloud (under low wind conditions) intlicates an irnersion, while smoxe that moves upward and repidty dissipates inCirates good verticel air mixing. Sensitive Areas: The pesdcitle snoultl only be applied when the potential for crfft to aciacent sensitive areas (e.q. resWential areas, bodies of water, known habitat for threatenaC or endangeredspedes. non-target crops) is minimal (e.g. when wind is bowing away 4ortt the sensitive areas). Mixing Instructions .vtix the required amount df Tomon 22K .n water and apply as acoarse. low pressure spray using grountl egmoment or aircraft. Use enough soray volume to Prowae uniform overage of the weeds. Use With Surfactants: Additlon of wetting or penetration agents is not usually necessary when thing TorCOn 22K However. under certain conditions. such as drought addition of a stufactant may improve affiory. However, if taller bum occurs too rapidty. translopdon of Tordon 22K will not occur and control of perennial weeds, wch as held bindweed. maY be redutetl. Mixing with 'Nater To prepare Ne sp2y, adtl spout half Ne Cesned amount of water in ;ha spray tank. Then with agitation, adC Ne rttcommentled antpum of T orddn 22K and other regtsrerea tank mix herotcdes. Finally, wiN connnuetl agitation. adp me rest of the •.vater antl additives such as surfactants or dnft control ono Deposition etas. Scecimen babel Revised 05-24-00