|
DECEIVE
<br /> AUG 31 2015
<br /> then soil temperature must be measured and recorded In blue FMR. record temperature Interlocking controls.
<br /> measurements at the application depth or 12 Inches.whichever is shallower. • The system must contain a functional check valve,vacuum relief valve,Inspection port,
<br /> Soil Moisture and low-pressure drain appropriately located on the Irrigation pipeline to prevent water
<br /> • The soil moisture in the top six inches of sail must be between 60%to 80%of availablesource contamination tram backgow.
<br /> water capacity Immediately prior to the application,subjectto the exception below. • The pesticide injection pipeline must contain a functional.automatic,qulek-closing check
<br /> • EXCEPTION:In areas where soil moisture must exceed available water capacity to form a valve to prevent the flow of fluid toward the injection pump.
<br /> bed(e.g.,certain millers In Florida),soil moisture content may exceed the 80%. • The pesticide in(achion pipeline must also contain o funegonet nommety-closed,solenoid-
<br /> • If appropriate measuring equipment is not used ro determine whether the sell moisture operated valve located on the Intake side of the""cum pump anti connected t0 Na
<br /> in the top six Inches of sell Is between 60%to 80%evaliable water capacity Immediately system Interlock
<br /> ro prevent fluid from
<br /> being withdrawn ham the supply tank when the
<br /> prior the application,the USDA Feel andAppesrence,Method lest may be used to imlga0on system Is a,Ner eulomaficall ar manually shut down.
<br /> estimate whether the 60%to 80%soil moisture content requirement is met:
<br /> Th system must contain functional tnterpdkinA controls to au[omagcally shut off the
<br /> ° For coarse textured soils(fine sand and loamy Me sand)there must be enough pes11 g injection pump when thewater pump no
<br /> stops.
<br /> moisture(50-75%of available water capacity)to farm a week ball with loose and • The irrigation line ler water pump must Include a functional pressure switch that will step
<br /> clustered sand grains on Milers,darkened color,moderate water staining on fingers,
<br /> the water pump motor when the water pressure decreases to
<br /> Ne point where pesticide
<br /> will not dither, distribution is adversary affected.
<br /> o for moderately coarse textured soils(sandy loam and fine sandy loam)(here must Sy9stems must use a metering pump such as a posi0ve displacement in1'ec l pump(e.g.,
<br /> be enough moisture(60-75%of available water cepacity)Nloan obeli wiN tie%fled diaphragm pump effectively designed and constructed of materials that am compatible
<br /> finger marks,very light soll/water staining on fingers,darkened calor will not sock: with pesticides and capable of beingfltted wiN a system Interlock.
<br /> o For medium textured solls(sandy clay loam,low,and silt loam)there must be enough ' Nozzles and metering devices are of coned size and are sealed end uno6sWdetl.
<br /> moisture(50-75%of available water caprift to farm a ball,very IIAAht staining an Flood Basin,Furrow and Harder Applications
<br /> fingers,darkened color, pliable,and forms a weak ribbon between Ne thumb and
<br /> forefinger. weather Conditions
<br /> o For fine textured soils(clay,clay loam,and silty clay loam)there must he enough • To determine If unfavorable weather conditions exist or are predicted(see Wentilying
<br /> moisture(50-75%of available water capscfy)to form a smooth hall with defined Unfavorable Weather Conditions section) and whether an applleatlon should
<br /> ringer marks, light soil/water staining on fingers, ribbons between thumb and proceed,the National Weather Service w,other forecast must he checked by the cerUOed
<br /> forefinger. applicator supervising the application:
<br /> o For fields with more than one soil texture,soil moisture content In the lightest ° on the day of,but prior to the start of the appplication,and
<br /> textured(meet Sandv�areas must compty wfh Nis sail moisture requirement The d on a dally hauls during the application it the Ume period from the start ofthe application
<br /> field may he divide dd late areas of similar soil texture and the Soil moisture of each until the application Is complete is greater than 24 hours.
<br /> area should be adjusted as needed.Coarser textured soils can be fumigated under Do not apply If an air-stagma on advisory Issued by the Normal Weather Service Is In
<br /> conditions of higher soil moisture than Mer texturedsuilsl however,it the Soil moisture effect for the area in which the application is planned,during the application,or the 48
<br /> is too high,fumigant movement will be retarded and effectlieness of the treatment will hours after the appditions licalion is complete.
<br /> be reduced.Previous anti/or local experience with the sail to be treated or the crop tp • Do not apply if light wind con (<2 mph)are forecast to persist for more than 18
<br /> be planted can often serve as aguide to conditions that will be acceptable.If there is consecutive hours train the Ume the application starts until 48 hours after the application
<br /> uncertainty in determining the soil moisture content of the area to be treated,a local is complete.
<br /> extension service or sell conservationist or pest control adviser(agriculture consultant) • Detalled National Weather Service forecasts for local weather conditions,wind speed,
<br /> should be consulted for assistance. and air stagnation advisories may be obtained online at hJJDsLiiNww,Mvvs.nmm.Mov
<br /> • If there Is insufficient moisture throughout the top six Inches below the surface of sail on NOAA weather radio,or by contacting your local National Weather Service Forecasting
<br /> Q Immediately prior to the application, the soil moisture must be adjusted. If there is OMco•
<br /> adequate soil moisture below six Inches,soil moisture can be brought to the surface by identifying Unfavorable Weather Conditions
<br /> tillage prior to the application.To conserve soil moisture,fiilage should be done as close to • Unfavorable weather conditions block upward movement of air which results in trapping
<br /> the Ume of application as possible. fumigant vapors near the ground.The resullinA air mass can move off-site in unpredictable l
<br /> Tarps(when tarps are used in Sectagan 42 applications) directions.These conditions typically exist prior to sunset and continue past sundae and
<br /> • Awritten Lary pplan must be developed and Included In the FMP persist as late as noontime.Unfavorable conditions are common on nights with limited
<br /> • Applicallonto blacks with previously laid and perforated tarps is allowed,but once atarp cloud coverandl'ggh[lonowind and their presence can be Indicated bygmuntlfag or smog
<br /> Is perforated,the application is no longer considered harped.Therefore,the application anti ten also be fit no
<br /> by smoke from a ground source that fattens out below a ceiling
<br /> would not he ellglhie for tarp buffer zone credits. layer and moves laterally in a concentrated cloud.
<br /> Flushing Drip Irrigation lines Sall Conditions
<br /> Atter application of the fumigant,continue to Irrigate the area with Water to flush the • Sol]must be In good Ulth,free of large nods,and Cited at a minimum to the depth of the
<br /> Injection and Irrigation system with unheated water.Do not allow fumigant to remain in treatment zone.Large clods can prevent effective sell sealing and reduce effectiveness
<br /> the Irrigation system after the application is complete.The total volume of water must of the application.If subsurface soil compaction layers(hampers)are present within the
<br /> he adequate to completely remove the fumigant from the lmgation system,but should intended fumigation treatment zone,a deep tillage to fracture these layers must occur prior
<br /> be less than the amount Nat could over-saturate the beds.It common lines are used for to ardag the soli fumigant application,
<br /> both the fumigant application and the water Imetmentoi(if applied),these lines must `Plant residua that Is present must not interfere with the application or the soil seal.Non-
<br /> be adequately flushed before starting the water treatment/seal and/or normal lmilation decomposed plant material may harbor pests that will net be controlled by fumigation.
<br /> practices. Crap residue Nat is present must Ile flat to permit the soil to be sealed effectively and limit
<br /> Applicadon and Equipment Directions Ne noNral'chimneys'Nat may occur In the soil when plant residue Is present,These
<br /> • Anti-siphon end back-flaw prevention devices must be installed and in working order. chimneys'allow the soil fumigants to move through the soil quickly and escape Into the
<br /> P P 9 atmosphere.This may create ppotentlally harmful conditions for workers and bystanders
<br /> • Tanks must be In good condition to ensure product does not spill or leak. and limns the efficacy of the fumigant.Plant residue on the field serves to prevent soil
<br /> • Tanks must have sealable covers on access ports. erosion from both wind and water.
<br /> • Tanks must have proper pesticide labels affixed to them.
<br /> • All tanks,hoses,filings,valves and connections must be serviceable,tightened,sealed Tarps(when tarps are used In Sectagon 42 applications)
<br /> and not leaking. • A written tarp pian must be devePoped and Included in the FMP
<br /> • Use only tanks,hoses and fittings designed to withstand the pressure m the system and • Once a tory Is perforated,the application is no longer considered harped,
<br /> resistant to metam- Sell Temperature
<br /> • For undiluted product,aluminum,bass,copper,galvanized iron,andzincmatedals cannot . At the beginning of the application,the soil temperature at the injection depth must be
<br /> be used. between 35•and 90.17,measured at 3Inches In depth.
<br /> • The drip be irrigates system(map lines;headers,dripadequate
<br /> tape)must be d pressure
<br /> checked for • If air temperatures have been above 100•F in any of the three days ppilar td application,
<br /> leaks bailee the start of the application.An major
<br /> ee(h run-time and pressure are needed then soil temperature must he measured and recorded in the FMP. regord temperature
<br /> todetectleaks. mws(look raky connectig alongons,
<br /> s,openidri (holes on the
<br /> Lamlee a )Dints,al the measurements at the application depth or 12 Inches,whichever is shallower,
<br /> top and ends of cows(leaky connections,open drip tape),In the furrows and on�e bed
<br /> surface(damaged drip tape,malfunctloning emitters). Sail Moisture
<br /> • To inject fumigant, use a metering system, effectively designed and constructed of • The soil moisture in the top six Inches of soil must he between 60%to 80%of available
<br /> materlals that are compatible with the fumigant and capable of being fitted with system water capacity Immediately prior to the application,subject to the exception below.
<br /> 12
<br /> Stteagon433013.Indd 12 611212ma I1a6:el AM
<br />
|