Application Concerns for Control of Invasive Species

1
Application Concernsfor Control ofInvasive
SpeciesA focus on Equipment Calibration
2
Changes in the Application Industry!
Product Related!!!

• Historically inefficient process
• Increased cost of pesticides
• Product rates are changing (lt an ounce/acre)
• More pest specific products
• Biotechnology and GMOs (Roundup Ready, Bts)
• More sophisticated equipment (electronics)
• Farmers doing there own spraying????
• Variable rates
• Site-specific
• Focus on Drift

3
Productivity
The application triangle
Off-site protection
Efficacy
balance
4
Equipment cost today?

• How much do these machines cost?

150,000 - 200,000
1,300,000
5
Equipment cost today?

• How much do these machines cost?

15,000 - 30,000
6
Automated Systems

• Injection
• Multiple position nozzles
• Multiple chemicals

70,000
7
Application Equipment

• Manual Sprayers
• Compressed air
• Knapsack

Easy Spray Valve
CF Valve
8
Application Equipment

• Power Hydraulic Sprayer
• Low-pressure
• High pressure

9
(No Transcript)
10
(No Transcript)
11
Sericea Lespedeza Control
12
Sprayer Components

• Tanks (contamination issues)
• Pump, Strainers, Agitation
• Pressure gauge
• Hoses, Flow control assemblies
• Electronics monitors-computers- controllers
  (GPS/GIS)
• Distribution system
• Nozzles!!!!!!!!!

13
Types of Pumps

• Roller Pump
• Centrifugal Pump
• Diaphragm Pump
• Piston Pump
• Peristaltic Pump (Squeeze or hose pump chemical
  injection)

14
Nozzle Technology? How to use??

• Nozzles designed to reduce drift
• Improved drop size control
• Emphasis on Spray Quality

15
NOZZLE TYPES

• FLAT SPRAY
• Extended Range Flat-Fan
• Turbo Flat-Fan
• Drift Reduction Flat-Fan
• Turbo Flood
• Off center Flat-Fan

16
Spray Characteristics are Important
Demonstrates Turbo Flat vs TurboDrop-5 MPH Wind
17
Is this tip good or bad?
18
Off-Center Venturi Flat-fan
19
Boom Buster
20
XP BoomJet
21
Boom Extender
22
Aerial Applications
23
(No Transcript)
24
 

The CP STRAIGHT STREAM NOZZLE

25
(No Transcript)
26
Nozzles are important because

• Control the amount GPA.
• Determine uniformity of application.
• Affects the coverage.
• Influences the drift potential.

27
1. Control the Amount applied

• Nozzle Flow Rate is affected by
• Orifice size
• Pressure
• Solution characteristics

Page 15
28
Nozzle Selection Chart
Pages 9, 12
29
Calibration!!!!

• Ensuring that the spray output is what it is
  supposed to be!

GPA
30
Calculations
!_at_!
GPA
5940
31
Calibration/Nozzle Selection

• What is the first step?
• Use label to select the
• application volume
• product rate
• Choose an appropriate travel speed
• Effective width of application
• nozzle spacing
• Calculate GPM Flow rate per nozzle
• Select the correct size of nozzle!

32
Flow rate equation
or
(5940/12 495)
Page 173 TeeJet Guide
33

• Example
• You are going to spray a pasture using a
  boomless nozzle at a rate of 20 gallons per acre.
  The sprayer is travelling 5 MPH and has a 15
  foot (180 inches) swath width per nozzle.
• 1. What is the correct flow rate?
• 2. Which XP TeeJet nozzle would you choose and
  at what psi?

34
Calculate Nozzle Flow Rate
?
?
?
35
5
20
15
3.0
Answer
36
XP BoomJet
Page 32, 33
37
Measuring Ground Speed

• Ground Speed - Miles Per Hour (MPH)
• Where traveling 88 ft. in 60 seconds 1 MPH
• Doubling the ground speed reduces
• the output by 1/2.

38
Hand Sprayer Calibration
Spraying to the point of runoff
Dilute

• product added to each gal. or 100 gal.
• uniform coverage-dripping from leaves
• time and gallons per tree/1000 sq. ft.

Technique important!!
39
Calibration Procedure

• Steps
• Mark off a calibration course of 1000 sq. ft.
• 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.
• Measure the flow rate from the gun. Using the
  time recorded in step 2, spray into a calibrated
  container for that same length of time.
• Amount in the container represents the
  application rate per 1000 sq. ft.

40
Hand Spray Guns cont.

• 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.

The application rate for this example is 1.4
gallons per 1000 sq. ft. or 61 gallons per acre
(43.56 x 1.4)
41
Thursday Sprayer Workshop

• Discuss hand sprayers show examples
• Discuss hose end sprayers on flat bed truck.
• Calibrate hose end sprayer using a 500 sq. ft.
  area.
• Discuss big spray truck and boombuster nozzle
  setup.
• Demonstrate boombuster and collect patterns.