Turf & Ornamental Turf and Ornamental Pest Control Robert E. Wolf BAE Dept. K-State University

Turf & Ornamental Application Equipment: uTwo basic types of application systems: Liquid (sprayers) Granular

Turf & Ornamental Spray Application Equipment uManually Operated Sprayers Compressed-air sprayers Backpack sprayers Mist blowers uPower Hydraulic Sprayers Low pressure boom sprayers Tanker/Hose end sprayers

Turf & Ornamental uGranular Applicators Centrifugal/Rotary Drop/Gravity Pendulum Pneumatic Dry Application Equipment

Turf & Ornamental Types of Application uFoliage sprays (shrubs, trees) uArea coverage (soils or lawns) uSpot sprays uLAWN Fertilization Weed control Insect/Fungi control u HORT Fertilization Insect/Disease control Dormant oil treatments

Turf & Ornamental Application Equipment Manual Sprayers Compressed air Knapsack Spray Management Valve CF Valve Easy Spray Valve

Turf & Ornamental Powered Boom Srayers

Turf & Ornamental Professional Lawn Care

Turf & Ornamental Sprayer Components: uTanks (contamination issues) uPump, Strainers, Agitation uPressure gauge uHoses, Flow control assemblies uElectronics: monitors-computers- controllers (GPS/GIS) uDistribution system uNozzles!!!!!!!!!

Turf & Ornamental Types of Pumps: uRoller Pump uCentrifugal Pump uDiaphragm Pump uPiston Pump uPeristaltic Pump (Squeeze or hose pump – chemical injection)

Turf & Ornamental Misapplication: Without proper attention to the nozzle, you may end up with a …… Misapplication

Turf & Ornamental Why is the Nozzle Important? uAmount of spray applied uUniformity of the spray uCoverage on the target uAmount of off-target drift

Turf & Ornamental 1. Control the Amount applied: Nozzle Flow Rate is affected by:  Orifice size  Pressure  Solution characteristics

Turf & Ornamental Calculations GPA= 5940

Turf & Ornamental Calibration/Nozzle Selection: uWhat is the first step? uUse label to select the application volume product rate uChoose an appropriate travel speed uEffective width of application nozzle spacing uCalculate GPM – Flow rate per nozzle uSelect the correct size of nozzle!

Turf & Ornamental Calculations GPA= 5940 Ok, now I remember!

Turf & Ornamental Flow Rate Equation: Equation # 2 uCalculates for amount of flow from one nozzle uRepresents the size of nozzle to put on the sprayer uCalculates for amount of flow from one nozzle uRepresents the size of nozzle to put on the sprayer

Turf & Ornamental GPM Example Solution: Answer.71

Turf & Ornamental uCalculate GPM (formula) uLook under GPM column uMatch to pressure-psi uChoose the size needed uOperate at given pressure and speed used in formula to achieve GPA Selecting the proper nozzle…..71

Turf & Ornamental MEASURE SPEED (1 MPH = 88 Feet traveled in 60 seconds) Measure the ground speed in an area similar to the conditions of the area to be sprayed!

Turf & Ornamental Electronics/Rate Controllers uHow does your system work when speed changes? uIs it pressure based? uWhat is the effect of going slower? uWhat is the effect of going faster?

Turf & Ornamental Checking for accuracy!!!

Turf & Ornamental

Hand Sprayer Calibration A. Spraying to the point of runoff uproduct added to each gal. or 100 gal. uuniform coverage-dripping from leaves utime and gallons per tree/1000 sq. ft. “Dilute” Technique important!!

Turf & Ornamental A spray gun has a swath of 10 ft. For uniform distribution of spray use 100% overlap. This creates an effective width of 5 ft. B.Calibration For Hand Spray Guns Step 1: Mark off a calibration course of 1000 sq. ft.

Turf & Ornamental Accurately measure the time required to spray the calibration course using a proper technique. Remember only record the amount of time the gun is actually spraying. Step 2: Step 3: Measure the flow rate from the gun. Using the time recorded in Step 2 collect the output from the gun in a graduated container for the period of time in Step 2. Hand Spray Guns, cont.

Turf & Ornamental Example: It took 50 seconds for an applicator to spray the 1000 sq. ft. calibration course. The amount of spray collected from the gun in the 50 seconds was 1.4 gallons. Hand Spray Guns: cont. The application rate for this example is: 1.4 gallons per 1000 sq. ft. or 61 gallons per acre (43.56 x 1.4)

Turf & Ornamental For more information contact: