Pesticide Application

List 5 things on a pesticide label

1. Brand name

2. Pesticide type (herbicide, fungicide, insecticide)

3. Active ingredient(s)

4. Common name

5. Formulation

6. Inert ingredient(s)

7. Classification (pre-emergence, post-emergence, seed treatment)

8. Signal word (danger, warning, caution)

9. Precautionary statement

10. PPE

11. Directions for use

12. Application rates

13. REI

5 common pesticide application methods

1. Band

2. Broadcast

3. Foliar

4. Directed or spot spray

5. Soil fumigation/injection

Which application method places the pesticide in a strip either over or beside a crop row?

Band application

Which application method applies a pesticide uniformly over an area?

Broadcast

Which application method applies a pesticide directly to the top portion of a plant?

Foliar

Which application method directs a pesticide at a target in small, discrete areas?

Directed or spot spray

Which application method applies the pesticide beneath the soil surface or incorporated into the soil?

Soil fumigation/injection

Which dry formulation equipment blows fine particles of pesticide dusts onto the target surface?

Dusters

Which dry formulation equipment is designed to apply course, dry particles that are uniform in size to soil, water, and in some cases foliage?

Granule spreaders

4 advantages of dusters

1. Lightweight

2. Relatively cheap

3. Fast acting

4. Don’t require water

3 disadvantages of dusters

1. Highly visible

2. Drift easily

3. Difficult to control

5 advantages of granule spreaders

1. Equipment is light

2. Relatively simple

3. Easy to calibrate

4. No water

5. Granules are uniform in size and flow easily

5 types of sprayers

1. Hand operated sprayers

2. Low pressure boom sprayers

3. High pressure sprayers

4. Air blast sprayers

5. Ultra-low volume sprayers

3 functions of a sprayer nozzle

1. Regulate the flow of the liquid

2. Atomize the liquid stream into droplets

3. Spread droplets in a specific pattern

If droplets are too small →

If droplets are too big →

small → drift

big → poor retention

4 materials used to construct spray nozzles

1. Brass

2. Plastic

3. Stainless steel

4. Ceramic

Which material is most common for spray nozzles?

a. Brass

b. Ceramic

c. Plastic

d. Stainless steel

a. Brass

Which material is the most durable for spray nozzles?

a. Brass

b. Ceramic

c. Plastic

d. Stainless steel

d. Stainless steel

Which material is least resistant to wear?

a. Brass

b. Ceramic

c. Plastic

d. Stainless steel

a. Brass

In order to double the flow rate, pressure must be increased how many times?

4x

What does the first number on the nozzle represent?

The spray angle

What does the second number on the nozzle represent?

The flow rate

Increase in speed → _________ application

decreased

Increased pressure → ________ flow rate

increased

Increased pressure → ________ drops

smaller

Wider angle → ______ drops

smaller

higher boom → covers _______ area

wider

lower boom → covers _______ area

narrower

higher angle → covers _______ area

wider

lower angle → covers ________ area

narrower