Aquatic Application Equipment

1
Aquatic Application Equipment
2
Chemical Application Methods

• Directly from Container
• Hand Operated Spreader
• Hand Operated Sprayer
• Mechanical Sprayer
• Mechanical Spreader
• Motorized Boat w/ Propeller

3
Directly from Container
4
Granular Application
5
Hand Operated Sprayer
12 volts
Adjustable nozzle
6
Caution - Compressed Air Sprayers

• Pesticides already mixed to their proper
  spraying dilution
• Tank pressurized with compressed air or carbon
  dioxide

7
Pressure Control

• Fill tank 2/3 full with spray material so
  considerable air space if left for initial
  expansion.
• Repressurize tank frequently.
• If pressure gage is used, repressurize when
  pressure drops about 10 psi from initial reading.

8
Notes

• Shake occasionally to keep materials in
  solution/suspension/emulsion.
• Each sprayer comes with a nozzle that can be
  adjusted to provide fine spray, coarse spray,
  and solid stream.

9
Liquid Application Broadcast
Outlets
10
Adjuvants

• Inert Ingredient to facilitate the action of the
  herbicide.
• Surfactants, thickening agents, spreaders,
  stickers, wetting agents, etc.
• Many Herbicides contain adjuvants in the
  formulation.
• Herbicide may suggest that an additional
  surfactant be added.
• Most are strictly optional.
• Read Label or Ask Manufacturers Representative.

11
Safe Application

• Wear PPE (long sleeve shirt pants, chemical
  resistant gloves etc.)
• Monitor Wind Direction
• Avoid creating fine particle when spraying
  (Drift Additive, Larger Nozzle, Lower Pressure)
• Follow Label Directions for Mixing
• Follow Label Directions for Application

12
Pond measurement methods

• Division of the area into simple figures.
• Offsets from straight lines.

13
Example
60

• Calculate a irregular shaped pond

370
14
?80

• a1????d2/45,024 ft2
• a2 60 x 250 15,000 ft2
• s (3240)/2 36
• a3 ½ (b x h) (s x 30)/2 x 2 1080 ft2
• A a1a2a3 21,103 ft2 21,103/43,560
• 0.48 acres

a1
250
a2
60
40
a3
32
15
Trapezoid area
a
(ab)/2
h
b
Area h (ab)/2
16
Offsets from straight lines

• Trapezoidal rule
• divide the figure into an even nummer, n, of
  strips.

d
d
d
hn
17
Surface Acre Treatments

• F A R
• F Amount of formulated herbicide product
• A Area of the water surface in acres
• R Recommended rate of product per surface acre

18
Acre-foot Treatments

• F A x D x R
• F Amount of formulated herbicide product
• A Area of the water surface in acres
• D Average depth of water in feet
• R Recommended rate of product per surface
  acre-foot

19
10 Acre Pond

• Rodeo _at_ 5 pts per acre
• Product to be Used 5pts x 10 acres
• 50 pts
• 50 pts x gallon/ 8 pints
• 6.25 gallons Rodeo

20
How much are we applying?

• Speed
• Width of Application
• Flow Rate

21
Travel Speed Equation

• Calculates travel speed

22
Speed Effects

• Double speed application rate ½
• ½ speed Double rate

23
Rate Equation
24
Where
gallons per acre

• GPA ______________________
• GPM ______________________
• MPH ______________________
• W ______________________
• 495 a constant to convert gallons per minute,
  miles per hour, and feet to gallons per acre

gallons per minute
miles per hour
nozzle spacing - inches
25

• Swath Width 20 ft
• 5 mph
• Collected 180 ounces in 30 secounds
• 180 oz/30 sec x 60 sec/min x gallon/128 oz
• 2.81 gpm

26
GPA 14
27
Tank Mixing

• 14 GPA 100 gallon tank 5 pt/acre
• How much chemical should be placed in the tank
  for 10 acre pond?
• How much chemical should be placed in the tank if
  the whole tank is going to be sprayed?
• What happens when the tank is refilled?

28
10 Acre Pond

• Rodeo _at_ 5 pts per acre
• Product to be Used 5pts x 10 acres
• 50 pts
• 50 pts x gallon/ 8 pints
• 6.25 gallons Rodeo

29
Tank Mixing

• 14 GPA 100 gallon tank 5 pt/acre
• How much chemical should be placed in the tank if
  the whole tank is going to be sprayed?
• 100 gallon tank/14 gpa 7.14 acres
• 5pts/acre x 7.14 acres 35.7 pts

30
Questions?