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    Controlling Plants Chemically Controlling Plants by Fire Site Preparation Fertilizing Mulching Seeding Specialized Planters Seed Harvesting Seed Processing Transport Trailers Miscellaneous References Appendix Disclaimer Contact Us The catalog provides descriptions applications pictures and sources for equipment used on rangeland Winner Blue Ribbon Educational Website Award from the American Society of Agricultural Biological Engineers Produced in cooperation with Rangeland Technology Equipment Council USDA Forest Service USDI Bureau of Land Management Home

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  • Forward
    the diversity and broadened interest of new members Annual VREW meetings were held in association with the Society for Range Management s SRM annual meeting meetings continue to this day and the proceedings of these meeting were published by the Forest Service until 1991 Several other RTEC publications Facilities for Handling Sheltering and Trailing Livestock and Fences are available for purchase through the SRM at http www rangelands org publications handbooks shtml In 1990 VREW was reorganized as RTEC to include new emphasis on innovative technology and strategies to improve revegetation success on disturbed rangelands The RTEC mission statement is to Promote the wise use and improvement of rangelands through the supporting functions of equipment development and application of innovative technology Focus areas and goals for RTEC include 1 Site Preparation and Seeding Encourage the development of innovative site preparation and seeding equipment 2 Plant Materials Promote the management evaluation and selection of plant materials that fulfill resource needs 3 Fire Promote rangeland improvement through the application of the latest fire technology and equipment 4 Seedbed Ecology Determine site characteristics and seed establishment relationships and improve seeding success utilizing new technologies 5 Weed Management Develop new strategies and equipment to manage or eradicate weed infestations 6 Structures Promote the development of innovative effective and economical range improvements 7 Information and Publications Assemble and widely distribute information concerning equipment and new technology In 2001 RTEC undertook the updating of the 1980 VREW publication Revegetation Equipment Catalog This catalog served as a valuable resource for land managers but was sorely outdated Funding to update this catalog was provided by the USDI Bureau of Land Management s Great Basin Restoration Initiative via the Great Basin Native Plant Selection and Increase Project and the USFS Rocky Mountain Research Station Professor Harold Wiedemann former RTEC

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  • Tractors
    power hop and the resulting vibration is detrimental to the tractor Dual and triple wheel combinations are used on many of the higher horsepower tractors to provide sufficient traction to pull large implements and reduce soil compaction Soil compaction can be a problem with these heavy tractors in high moisture soil conditions Sites with logs stumps and thorns can damage the tires Tractor shielding and tire protection are necessary when operating on debris littered wildland see Tractor Modifications for Rangeland Use Small tractor using front wheel assist Front wheel assist on a 200 plus Photo courtesy of Kubota horsepower tractor using duals Photo courtesy of John Deere Bi directional tractor with implement hitches front and rear Photo courtesy of New Holland Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses AGCO Corporation 4205 River Green Parkway Duluth GA 30096 Phone 770 813 9200 Fax 770 813 6158 Website www agcocorp com Antonio Carraro SpA 210 Jefferson Street Suite 203 Napa CA 94559 Phone 707 252 1672 Fax 707 252 8413 Website www acamerica com Belarus Tractor International Inc 7075 West Parkland Court Milwaukee WI 53223 Phone 800 356 2336 Fax 414 355 6903 Website www belarus com Branson Tractor Company Division of Dragon Tractor Corp 1129 South Chattanooga Street Lafayette GA 30728 Phone 877 734 2022 Fax 877 734 0637 Website www bransontractor com Case IH 700 State Street Racine WI 53404 Phone 262 636 6011 Fax 262 636 6078 Website www caseih com Challenger Caterpillar rubber track See AGCO Corporation Website www challenger agcocorp com Deere Company John Deere World Headquarters One John Deere Place Moline IL 61265 Phone 309 765 8000 Fax 309 765 4225 Website www deere com Fendt See AGCO Corporation Webpage www fendt agcocorp com Kioti Tractor Division DAEDONG USA Inc 1801 Quality Drive Wilson NC 27893 Phone 252 291 6111 Fax 252 291 9161 Website www kiotitractor com Kubota Tractor Corporation USA 3401 Del Amo Blvd Torrance CA 90504 Phone 310 370 3370 Fax 310 370 2370 Website www kubota com Landini USA Inc 3675 Crestwood Parkway Suite 505 Duluth GA 30096 5054 Phone 678 924 9885 Fax 678 924 9887 Website www landiniusa com Long Agribusiness LLC P O Box 1139 Tarboro NC 27886 1139 Phone 252 823 4151 Fax 252 823 4576 Website www longagri com McCormick USA Inc P O Box 81 Pella IA 50219 Phone 866 327 6733 Fax 641 621 7932 Website www mccormick intl com Mahindra USA Inc 17723 FM 2920 Tomball TX 77375 Phone 800 887 2286 Fax 281 351 2656 Website www mahindrausa com Massey Ferguson See AGCO Corporation Website www masseyferguson agcocorp com New Holland North America 500 Diller Avenue New Holland PA 17557 Phone 888 290 7377 Website www newholland com Same Deutz Fahr North America 4801 Lewis Road Stone Mountain GA 30083 1101 Phone 770 493 7667 Fax 770 493 7917 Website www sametractors net Tafe USA Inc 1014 Highway 348 West Guntown MS 38849 Phone 662 869 1028 Fax 662 869 1030 Website www tafetractors com Valtra USA Inc 2500 W Higgins Road Suite 125 Hoffman Estates IL 60195 Phone 847 490 3536 Fax 847 490 4263 Website www valtra com Zetor Tractors American Jawa Ltd 7301 Allentown Blvd Harrisburg PA 17112 Phone 717 540 5618 Fax 717 540 5863 Website www zetor com Four Wheel Drive Tractors Top of Page Description Four wheel drive tractors use articulate steering Tires are the same size on both the front and rear axles These tractors are designed to pull very large loads on wide open spaces Horsepower ranges from 250 to 500 or more Transmissions are standard or shift on the go with up to 20 forward gears and several reverse gears They are equipped with climate controlled cabs and have many of the same features described for front wheel assist tractors These include power seats finger tip controls and features to give optimum engine efficiency and hydraulic performance Multiple hydraulic control valves for remote devices are available Tractors are equipped with a drawbar hitch a three point hitch is optional Duals or triple wheels are commonly used on both front and rear An option available from some manufacturers is a rubber track instead of rubber tires Application Four wheel drive tractors are very powerful and are used to pull very wide implements or implements pulled in tandem Wheels can be adjusted for row crops These tractors are commonly used to pull very large subsoilers disks chisel plows air seeders and land leveling scrapers Tire size wheel weights liquid added to the tires and weight distribution front to rear ratios are all critical for the necessary traction and should follow the manufacturer s recommendations If not in balance a noticeable vibration called power hop occurs under stressful pulling conditions Reduced traction occurs during power hop and the resulting vibration can damage the tractor Tractors used on debris littered rangeland require special tire modifications see section on tractor modifications for rangeland use The rubber track system overcomes much of the soil compaction problem associated with rubber tires and when properly weighted track systems are more stable on slopes Rubber track tractor Articulate steered four wheel Photo courtesy John Deere drive tractor Photo courtesy of Case IH Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses AGCO Corporation 4205 River Green Parkway Duluth GA 30096 Phone 770 813 9200 Fax 770 813 6158 Website www agcocorp com Buhler Versatile 1201 Regent Avenue West Winnipeg MB Canada R2C 3B2 Phone 204 661 8711 Fax 204 654 2503 Website www buhler com Case IH 700 State Street Racine WI 53404 Phone 262 636 6011 Website www caseih com Challenger Caterpillar rubber track See AGCO Corporation Website www challenger agcocorp com Deere Company John Deere World Headquarters One John Deere Place Moline IL 61265 Phone 309 765 8000 Fax 309 765 4225 Website www deere com Massey Ferguson See AGCO Corporation Website www masseyferguson agcocorp com New

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  • All-terrain Vehicles
    for increased carrying capacity Some 6 wheel models have tracks for increased traction and floatation Toolboxes winches and front mounted dozer blades are available Application Utility models are well suited for rangeland projects The 4x4 units provide good traction for rugged terrain and automatic transmission simplifies operation The 2x4 units with 250 to 300 cc four stoke engines are easier to maneuver over long periods of idle or slow speed operation during spraying Small battery powered sprayers can be mounted on the rear rack see ATV Sprayers in the section on Controlling Plants Chemically Small disks cultivators and seeders can be towed for seeding projects Four wheelers are fun to ride but excessive speed difficult terrain and steep slopes should be avoided especially when loaded with extra equipment Safety procedures as outlined in the operator s manual should be followed Six or eight wheel units are safer on steep slopes An electric air pump and tire plug kit is available to repair flat tires in the field Tire sealant is helpful when operating in a thorn infested landscape ATV at work on rangeland Photo courtesy of Allen McGinty Eight wheel ATV spraying on hillside Photo courtesy of PFM Manufacturing Inc Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses American Honda Motor Co 1919 Torrance Blvd Torrance CA 90501 2746 Website www powersports honda com atvs America Suzuki MC ATV P O Box 1100 Brea CA 92822 Phone 714 572 1490 Website www suzukicycles com Arctic Cat Inc 601 Brooks Avenue South Thief River Falls MN 56701 Phone 218 681 8558 Fax 218 681 3162 Website www arcticcat com Bush Hog L L C P O Box 1039 Selma AL 36701 Phone 334 876 2700 Website www bushhog com COOT2 Inc 17383 E St

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  • Global Positioning Systems
    type of equipment Base stations use post processing of data Differential signals for real time applications include Omnistar worldwide L band satellite signal Landstar L band satellite signal Coast Guard beacon where available WAAS Wide Area Augmentation System and RTK Real Time Kinematic Application GPS units need a signal from at least three satellites for minimal operation Current handheld units using WAAS are accurate within approximately 10 feet and cost from 150 to 450 depending on options These units are popular with hikers hunters and fishermen Real time applications for mobile equipment can cost 10 000 to 40 000 or more depending on accessories Aircraft units are capable of displaying maps of fields to be sprayed guiding each swath and logging the flight pattern of aircraft Tractors use GPS to control variable rate applications of agricultural materials and RTK systems are available to accurately steer the tractor Brush control projects are using GPS to guide tractors or aircraft during applications to protect wildlife habitat clear selected areas and provide aesthetically pleasing landscapes GPS automated steering Photo courtesy BEELINE Technologies Inc GPS unit in an aircraft GPS Screen with targeted spray area Photos courtesy of Charles R Hart Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses AGCO Corporation 4205 River Green Parkway Duluth GA 30096 Phone 770 813 9200 Fax 770 813 6158 Website www agcocorp com Ag Nav Inc 33122 SH 249 Suite A Pinehurst TX 77362 Phone 866 662 4628 Phone 281 252 8908 FAX 281 252 8909 Website www agnav com BEELINE Technologies Inc 1070 West 124 th Avenue Suite 900 Westminster CO 80234 Phone 303 457 9333 Fax 303 457 9394 Website www beeline ag Deere Company GreenStar John Deere World Headquarters One John Deere Place Moline IL 61265 Phone

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  • Controlling Plants Mechanically
    rakes are towed behind the tractor and are designed to remove roots and stumps following rootplowing These rakes vary in width from 18 to 24 feet Horsepower recommended for both stacker and root rakes varies from 140 and 350 Application Rakes are used in land clearing for debris removal to allow follow up brush control traversing of the landscape and primary tillage Piles of debris may be burned or saved for wildlife habitat depending on goals of the project A skillful operator can build piles relatively free of soil In some situations soil disturbance is sufficient for seeding Root rakes are used to clear land for farming operations MA rake can penetrate into the soil Stacker rake skids on soil surface Root rake collecting debris following rootplowing Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Arrow west Equipment Ltd 109 53016 Highway 60 Spruce Grove Alberta Canada T7X 3G7 Phone 780 962 4490 Fax 780 962 4495 Website www arrowwest com Holt Cat Custom Engineered Products P O Box 207916 San Antonio TX 78220 7916 Phone 210 648 8415 Fax 210 648 8875 Website www holt texasag com Rockland Manufacturing Company P O Box 5 Bedford PA 15522 Phone 800 458 3773 Fax 814 623 7214 Website www rocklandmfg com Rome Plow Company P O Box 48 Cedartown GA 30125 Phone 770 748 4450 Fax 770 748 4427 Website www romeplow com Shearing Blades Top of Page Description Shearing blades are designed to sever tree trunks at ground level They have saw like teeth along the base of the modified dozer blade for cutting A sharp stump splitter on the forward part on the blade aids in severing large trunks The most common unit is called a KG blade It is diagonally mounted on the front of a crawler tractor and they range from 8 to 14 feet in width The other type a V blade shears on both sides of the centrally mounted unit These blades are slightly wider than the KG blades Application Shearing blades are used in forests for rapid clearing of non sprouting trees They leave the area relatively smooth with stumps usually left intact in the ground They are not effective in rocky ground and are seldom used on brush infested rangeland Tractor operators must be well shielded from falling trees and limbs KG shearing blade V shearing blade Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Arrow west Equipment Ltd 109 53016 Highway 60 Spruce Grove Alberta Canada T7X 3G7 Phone 780 962 4490 Fax 780 962 4495 Website www arrowwest com Rockland Manufacturing Company P O Box 5 Bedford PA 15522 Phone 800 458 3773 Fax 814 623 7214 Website www rocklandmfg com Hydraulic Shearing Blades and Brush Saws Top of Page Description Hydraulic shears are use to sever tree trunks near the ground Two horizontally mounted blades are forced through the tree trunk by hydraulic cylinders attached to the blades The shearing units can be front mounted on skid steer loaders wheel loaders or excavators Skid steer loaders equipped with 14 inch shears are commonly used for clearing non sprouting brush species A 20 inch unit is also available Attachments include brush guards push bars and spray nozzles to treat sprouting species as they are sheared Skid steer loaders are also available with tracks called compact track loaders Hydraulic brush saws cut tree trunks near or slightly below ground level Saws are front mounted on skid steer or compact track loaders and can cut brush and trees up to 15 feet tall The 28 inch diameter high tensile steel blade has eight replaceable weld on carbide tipped teeth Loaders should to be equipped with brush guards Application Skid steers with shears or brush saws are highly maneuverable and move quickly between trees They are valuable in sculpting brush infested rangeland to provide cleared area while protecting wildlife habitat Shearing or sawing is popular in species like junipers whose top growth is valuable for fence posts or cedar oil Tires need protection from puncture by thorns while rubber tracks resist punctures Steep slopes rocks and large debris should be avoided Compact track and skid steer loaders are well suited to level and undulating landscapes Hydraulic shears mounted on a skid steer loader Photo courtesy of Dymax Hydraulic brush saw mounted on a compact track loader Photo courtesy of Bobcat Company Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Dougherty Forestry Mfg Ltd Co Brush saw 30250 Jenson Rd W Hinton OK 73047 Phone 405 542 3520 Fax 405 542 6928 Website www turbo saw com Dymax Shears P O Box 297 Wamego KS 66547 Phone 800 530 5407 Phone 913 456 2081 Fax 913 456 8328 Website www dymaxattachments com Grace Manufacturing Inc Shears 11200 Turkey Ridge Drive Plato MO 65552 Phone 417 458 4350 Fax 417 458 3243 Website www treeterminator com Mighty Axe Shears 2649 CR 2300 Independence KS 67301 Phone 888 322 2068 Fax 425 799 8931 Website www mightyaxe com Templeton Equipment Co Skid steer shears P O Box 2558 Abilene TX 79604 Phone 915 673 7361 Fax 915 677 1613 Email scrapper abilene com Bobcat Company Skid steer accessories P O Box 6000 West Fargo ND 58078 6000 Phone 701 241 8700 Fax 701 241 8704 Website www bobcat com Case IH Skid steer 700 State Street Racine WI 53404 Phone 262 636 6011 Fax 262 636 6078 Website www caseih com Caterpillar Inc Skid steer 100 NE Adams Peoria IL 61628 Ph 309 675 1000 Website www cat com Deere Company Skid steer John Deere World Headquarters One John Deere Place Moline IL 61265 Phone 309 765 8000 Fax 309 765 4225 Website www deere com New Holland North America Skid steer 500 Diller Avenue New Holland PA 17557 Phone 888 290 7377 Website www newholland com Grubbers Top of Page Description Grubbers are sharp U shaped blades mounted on the front of crawler tractors wheel loaders excavators or farm tractors to uproot individual trees Smaller tractors 65 horsepower often use hydraulically assisted blades that enhance the output by tearing roots loose as the blade is rotated Width of the cutting blade is usually 3 or 4 feet Tractor size and type depend on the size of trees to be grubbed and the type of terrain Tractor horsepower varies from 65 to 170 Units are available commercially but many are fabricated in welding shops Some units clamp the tree and pull the tree from the soil Application Grubbing is an excellent method to selectively thin brush infested land This technique is called sculpting and it is very effective in protecting wildlife habitat while providing cleared areas for grazing Wheel or track loaders or excavators give the operator excellent vision during plant uprooting Low energy grubbing is the use of small tractors on small trees and it is cost efficient and effective These units often use hydraulically assisted blades Farm tractors with small three point hitch grubbers are popular for use on limited acreages of previously cleared areas Grubbing techniques can vary depending on sprouting characteristics of the targeted plant s roots see Appendix Grubbing Grubbing is not practical in rocky soil or when tree densities are more than 250 per acre over extensive acreages Addition information Wiedemann H T 2004 Mechanical brush management current state of the art In Brush Management Past Present and Future eds W T Hamilton A M McGinty D N Ueckert C W Hanselka and M L Lee College Station Texas Texas A M University Press Construction plans for front mounted grubbers are available from Texas Agricultural Experiment Station P O Box 1658 Vernon TX 76385 Grubber mounted on small crawler tractor Grubber attached to wheel loader Farm tractor with front mounted grubber Track loader with grubbing blade Photo courtesy of Holt Cat Farm tractor with rear mounted grubber Excavator grubbing trees Rear mounted grubbing blade Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Many grubbers are built in local welding shops Brush Boss Grubber 3 point hitch grubber 301 Rockcrest Road McKinney TX 75069 Phone 972 562 0869 Website www brushboss com Holt Cat crawler mounted blades Custom Engineered Products P O Box 207916 San Antonio TX 78220 7916 Phone 210 648 8415 Fax 210 648 8875 Website www holt texasag com JAWZ Grabbing Tools Starhill Solutions Inc 731 Florida Street 201 San Francisco CA 94110 Phone 415 285 2707 Fax 415 285 2714 Website www starhilljawz com Jones Machine Shop 3 point hitch grubber P O Box 1577 Vernon TX 76385 1577 Phone 800 919 4949 Phone 940 552 6311 Fax 940 552 6362 Website www dallasweb com jones Vail Products Inc excavator blade 401 Central Avenue Horton KS 66439 Phone 800 375 8245 Phone 785 486 2177 Fax 785 4869321 Website www vailproducts com Rootplows Top of Page Description A rootplow is a heavy duty V shaped horizontal blade 10 to 16 feet wide pulled by a large crawler tractor at a depth of 12 to 14 inches to sever tree roots Tractor horsepower required to pull the integral mounted plows varies from 170 to 400 Fins are attached to the top of the blade to dislodge roots and stumps and move them near the soil surface Commercial rootplowing averages about 2 acres hour Application The rootplow severs roots to prevent sprouting of most brush species although it is not effective on those with shallow root systems Plant mortality is usually 85 to 99 but care must be taken to determine where and how it should be used Chaining or raking following rootplowing helps to smooth the soil surface and remove sprouting species or stumps Rootplows have been used since the 1940s to clear dense stands of mesquite and other hard to kill brush species in preparation for seeding to grass or crops Sculpting dense brush infested areas by selective plowing and seeding with plants favorable for wildlife habitat grazing animals and watershed management could enhance the multiple use value of depleted rangeland with fertile soils Rocky soils prevent plowing and gravelly soils cause excessive blade wear Rootplow severing roots 12 inches below ground Photo courtesy of Holt Cat Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Holt Cat Custom Engineered Products P O Box 207916 San Antonio TX 78220 7916 Phone 210 648 8415 Fax 210 648 8875 Website www holt texasag com Rockland Manufacturing Company P O Box 5 Bedford PA 15522 Phone 800 458 3773 Fax 814 623 7214 Website www rocklandmfg com Regrowth Rootplows Top of Page Description In the middle 1990s a Texas company started manufacturing regrowth rootplows and rakes to control regrowth brush in pastures previously cleared by conventional rootplows and rakes These 10 foot wide plows have been structurally downsized so they can be pulled by 140 to 170 horsepower crawler tractors Additionally regrowth root rakes 14 feet wide have been developed to operate in concert with the plows The rakes remove roots from the soil and pile them with the above ground brush debris They use the same quick hitch as the regrowth plow Regrowth plows are more energy efficient and cost effective than conventional rootplows when used in previously cleared areas or in the early stages of brush establishment Application Regrowth plows are especially useful in pastures that have compacted soils and moderate to dense stands of brush with trunk diameters less than 4 inches In pasture situations where herbicides and burning are restricted or ineffective these plows may be the only option to control the brush Regrowth plows can also be pulled by rubber track tractors and large wheeled farm tractors to fracture compacted soils when brush debris is not present Pastures or rangeland must be free of underground stumps or rocks to prevent undue damage to the plow Regrowth rootplow in a previously cleared Regrowth rake pasture Photo courtesy of Holt Cat Photo courtesy of Holt Cat Source The manufacturer s website lists information on equipment sizes accessories dealers and their email addresses Holt Cat Custom Engineered Products P O Box 207916 San Antonio TX 78220 7916 Phone 210 648 8415 Fax 210 648 8875 Website www holt texasag com Offset Disks Top of Page Description Disks used in brush control are the heavy duty offset type They chop and turn under surface debris and uproot shallow rooted sprouting brush species Offset disks consist of two gangs of disks set at angles to each other Each gang has a separate frame and axle assembly On some models gang angles can be adjusted for varying soil conditions or desired disking action Blade may be notched or straight edged and vary from 24 to 36 inches in diameter Disks range from 8 to 15 feet in width and require tractors with 70 to 350 drawbar horsepower These disks usually have rubber tires that are raised and lowered hydraulically for transport or depth control Disks without wheels are hinged and they must be transported on trailers Application Disks with 36 inch blades are used for brush control on undisturbed soil while units with blade diameters less than 30 inches are used for seedbed preparation following rootplowing In both situations disks bury much of the surface brush debris and form a desirable seedbed see Site Preparation Most disks used on rangeland employ notched disk blades to chop and bury debris Disks can be used on a wide range of soil conditions and moderately rocky soil but they cannot be used if there is excessive timber or rocks Farm type disks are not suited for the rigors of debris littered rangeland Large offset disk used on rangeland Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses AMCO Manufacturing Inc 800 South Industrial Parkway Yazoo City MS 39194 Phone 800 748 9022 Phone 662 746 4464 Fax 662 746 6825 Website www amcomfg com Rome Plow Company P O Box 48 Cedartown GA 30125 Phone 770 748 4450 Fax 770 748 4427 Website www romeplow com Roller Choppers Top of Page Description Roller choppers are large drums with a series of longitudinally mounted blades As the drums rotate they chop and crush brush debris small trees and slash They also form small trenches or pits in the soil to capture rainfall increase infiltration and provide a seedbed The drums are hollow and are usually filled with water to increase their weight and chopping action Drum diameters vary from 24 to 60 inches Choppers can be pulled in single duplex triplex or tandem configurations Width can vary between 5 to 16 feet and required horsepower for pulling varies from 60 to 350 Application Roller choppers are effective in forest site preparation They are also popular for treating brush species that produce regrowth valuable for goats and wildlife Choppers can cut brush up to 5 inches in diameter They should not be used in rocky soils The faster choppers are pulled the more they bounce increasing chopping effectiveness but the vibration is detrimental to the equipment Hitches often use springs to absorb the vibration Models called land imprinters use wedges rather than blades to form depressions in different directions to decrease runoff and increase infiltration They are used more for seedbed preparation see Site Preparation A popular variation in blade pattern is a spiral blade chopper often called an aerator or renovator see section on Spiral blade Choppers Roller chopper cutting shrubs Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Lawson Manufacturing Inc 700 Dyer Blvd Kissimmee FL 34741 Phone 800 533 7264 Phone 407 944 1500 Fax 407 944 1644 Website www lawsonaerator com Marden Industries Inc P O Box 796 Mulberry FL 33860 Phone 800 881 0388 Phone 813 682 7882 Fax 813 425 0302 Website www mardenind com Rockland Manufacturing Company P O Box 5 Bedford PA 15522 Phone 800 458 3773 Fax 814 623 7214 Website www rocklandmfg com Spiral blade Choppers Top of Page Description Spiral blade choppers often called aerators or renovators differ from conventional roller choppers in that they use small blades welded to the heavy drums in a staggered spiral pattern around the drum rather than the long longitudinally mounted blades These choppers normally use two drums mounted on a frame similar to an offset disk and they are equipped with rubber tires for transporting Spiral blade choppers are pulled by a crawler tractor or a four wheel drive tractor with special tire protection see Tractor Modifications for Rangeland Use Drum diameters vary from 18 to 42 inches and they can be filled with water for extra weight Width is 12 foot but options are available Tractor horsepower requirements vary between 120 and 350 and depend on chopper size weight tree shrub size and type of terrain Application Spiral blade choppers have gained popularity in the 1990s especially in brush dominated landscapes because of minimal vibration effective top growth removal soil fracturing and the small basins formed in the soil to hold rainfall The basins also provide a good seedbed see Site Preparation Because of the rubber tires the units are easily transported from site to site Blade wear can be a problem and new blades are welded in place These choppers should not be used on rocky ground Gravelly and some sandy soils can cause excessive blade wear Spiral blade chopper Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Holt Cat Custom Engineered Products P O Box 207916 San Antonio TX 78220 7916 Phone 210 648 8415 Fax 210 648 8875 Website www holt texasag com Lawson Manufacturing Inc 700 Dyer Blvd Kissimmee FL 34741 Phone 800 533 7264 Phone 407 944 1500 Fax 407 944 1644 Website www lawsonaerator com Marden Industries Inc P O Box 796 Mulberry FL 33860 Phone 800

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  • Controlling Plants Chemically
    spray droplets less than 100 μm D V0 1 is an indication of potential drift Considerable research has been conducted to determine droplet sizes under actual airspeed conditions ASAE Standards and predictive models are available CP 03 nozzle with four orifices and three deflector plates for convenient rate and droplet size adjustment Photo courtesy of The CP Products Company Inc Accu Flo radial nozzle uses a flow control orifice and a series of calibrated tubes for rate and droplet size adjustment Photo courtesy of Bishop Equipment Mfg Inc Additional Information ASAE Standards 2003 50 th ed 2003 ASAE S572 AUG99 Spray nozzle classification by droplet spectra ASAE 2950 Niles Rd St Joseph MI 49085 9659 Kirk I W 2001 Droplet spectra classification for fixed wing aircraft spray nozzles Paper No 01 1082 ASAE 2950 Niles Rd St Joseph MI 49085 9659 Metric units available upon request Kirk I W 2000 Spray quality for helicopters spray nozzles Paper No AA00 006 ASAE 2950 Niles Rd St Joseph MI 49085 9659 Metric units available upon request Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses Bishop Equipment Mfg Inc Accu Flo nozzles 63 East Broad Street Hatfield PA 19440 Phone 215 368 5307 Fax 215 368 9201 Website www bishopequipment com Delavan Inc nozzles P O Box 969 Bamberg SC 29003 Phone 800 982 6743 Phone 803 245 4347 Fax 803 245 4146 Website www delavaninc com Hypro Corporation nozzles 375 5 th Ave NW New Brighton MN 55112 Phone 800 424 9776 Fax 800 323 6496 Website www hypropumps com Spraying Systems Co nozzles P O Box 7900 Wheaton IL 60189 7900 Phone 630 665 5000 Fax 630 260 0842 Website www spray com The CP Products Co Inc nozzles 418 S Price Road Tempe AZ 85281 Phone 866 303 0600 Phone 480 303 0600 Fax 480 303 0909 Website www cpproductsinc com Simplex Manufacturing helicopter accessories 13340 NE Whitaker Way Portland OR 97230 Phone 503 257 3511 Fax 503 257 8556 Website www simplexmfg com Transland Inc fixed wing accessories 24511 Frampton Ave Harbor City CA 90710 Phone 310 534 2511 Fax 310 534 2518 Website www translandinc com Dry Material Spreaders Top of Page Description Venturi type and rotary slinger spreaders are used to distribute dry formulations of herbicides fertilizers and seed Fixed wing aircraft use venturi spreaders while helicopters use rotary spreaders Venturi spreaders clamp to the gate box at the base of the hopper Gate boxes are 25 38 or 41 inches wide Agitators and positive metering systems are available Rotor spreaders are self contained units that hang below the helicopter A recent approach for helicopters is to use saddle tanks with an auger and forced air boom Addition information is covered in the chapter on Seeding Application Vanes in the spreader can be adjusted to control the swath pattern and the pattern should be tested for even distribution of materials upon initial spreader installation Agitators are available to assist the flow of material from the hopper Positive metering systems are valuable for metering pelleted herbicides or hard slick grass seed in fixed wing aircraft Chaffy grass seed can be especially difficult to meter and operator know how is valuable Aerial seeding using venturi spreader Swathmaster dry material spreader pictured in adjacent photo Photo courtesy of Transland Inc Aircraft positive metering system to dispense pellets Dry material hopper with rotary spreader tethered below helicopter Photo courtesy of USDA Forest Service Missoula Technology Development Center Saddle tanks for dry material with forced air boom spreader Photo courtesy of North Star Helicopters Sources The manufacturers websites list information on equipment sizes accessories dealers and their email addresses North Star Helicopters Inc Application Mfg P O Box 2010 Jasper TX 75951 Phone 409 384 5315 Fax 409 384 3002 Email nshi inu net Simplex Manufacturing helicopter accessories 13340 NE Whitaker Way Portland OR 97230 Phone 503 257 3511 Fax 503 257 8556 Website www simplexmfg com Transland Inc fixed wing accessories 24511 Frampton Ave Harbor City CA 90710 Phone 310 534 2511 Fax 310 534 2518 Website www translandinc com Ground Sprayers Top Of Page ATV Sprayers Description All terrain vehicles ATV equipped with spray tanks electric pumps and hand held spray guns are well suited to the selective application of herbicidal leaf or stem sprays to noxious plants on rangeland Units with 10 to 25 gallon spray tanks a chemical resistant 12 volt 1 4 gallon minute diaphragm pump and a polypropylene hand gun with a ConeJet 5500 X 8 adjustable cone nozzle Spraying Systems Company for leaf spray or ConeJet 5500 X 1 for stem spray are available from spray equipment manufacturers or suppliers These units are effective for treating individual shrubs and can be rigged with hoses for three spray guns so that the ATV driver and a ground crew of two can treat a 40 foot swath Booms or boomless nozzles can be attached to ATVs for weed spraying ATVs are typically 4 wheel units but larger units with 6 and 8 wheels can carry larger spray tanks and accessories see chapter on All Terrain Vehicles Application Four wheel ATVs are readily available because of their popularity for pleasure hunting and work They lend themselves to stop and go movement while spraying small trees less than 8 feet tall growing in sparse to moderate densities Three wheel units loaded with spray tanks are less stable than 4 wheelers Caution should be exercised driving 4 wheelers up steep slopes carrying a heavy spray tank on the rear as the machine can tip over To reduce this risk balance the load with a front mounted tank or bags of sand or carry less fluid in the rear tank Eight wheel units add a degree of safety on steep slopes On landscapes littered with thorns add leak stopping compound to the tires and keep the pressure low 2 psi Applications should follow the chemical s Product Label Brush spraying using an ATV platform

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  • Controlling Plants by Fire
    driven fan Kit 2 as opposed to the pith ball type Application Burning is very weather sensitive In addition to National Weather Bureau forecasts on site measurements are critical and should be taken prior to and during the burning activity Data should be recorded at regular intervals usually every 30 minutes Wind speed affects fire behavior immediately A change in relative humidity does not affect moisture levels in fine fuels for about 30 minutes Weather kit 1 left and kit 2 right Photo courtesy of Wayne Hamilton Hand Tools Top of Page Description Hand tools include swatters shovels fire rakes axes and a 3 to 5 gallon backpack pumper It is important that these tools to be available to stop escaped fires Fire tools are available from companies that specialize in burning and firefighting equipment Two way radios are critical for communication between members of the fire team Backpack pumper used to extinguish a fire Photo courtesy of Wayne Hamilton Pumper Trucks Top of Page Description Fire fighting pumper trucks are necessary for the safe conduct of prescribed fires The appropriate size depends on the application Pumper units consist of a water tank pump gasoline or diesel engine and a retractable hose 50 to 100 feet in length Trucks should to be 4 wheel drive for rangeland burning Slip on units 100 gallons are suitable for ¾ ton pickups A 1 ton diesel truck with a self contained 300 gallon unit is a popular size for research and commercial burning Trucks should have racks for drip torches fuel cans hand tools and radio and cell phone communication Pumper units can be fabricated in a shop from components purchased separately or purchased as fully equipped self contained units to be attached to a truck frame Application Truck and pump engines should be kept in good condition to insure that they will operate when needed and the pumping system must be protected in freezing weather Fire trucks are placed at strategic locations during burning so they can quickly reach an escaped fire One ton pumper truck with 300 gallon tank Photo courtesy of Texas Agricultural Experiment Station Aerial Ignition Systems Top of Page Helitorches Description and Application Helitorches are used by helicopters for aerial ignition of all types of large scale prescribed fires including oil spills Helitorches will operate under any helicopter equipped with a cargo hook and 28 VDC power A 55 gallon tank supplies special fuel to a propane ignition system which then supplies a uniform stream of fire to the targeted area A support trailer with mixing tanks to prepare the gel fuel is required The pilot controls the helitorch operation The burn boss is located in a separate aircraft or strategic ground site Helitorch used for aerial ignition of prescribed fires Photo courtesy of USDA Forest Service Missoula Technology Development Center Plastic Sphere Dispenser Top of Page Description and Application The plastic sphere dispenser PSD known colloquially as the Ping Pong Ball Machine was designed for rapid low

    Original URL path: http://reveg-catalog.tamu.edu/06-Fire.htm (2015-10-18)
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