Equipment And Technology

Question 1

Agitation System

Answer 1

A gas powered manual device that stirs or mixes a solution in a sprayer. Used to mix inversion oils, wettable powders, and solutions containing polymers. Hydraulic vs mechanical agitators.

Question 2

Bottom treatment

Answer 2

A spray treatment method that places herbicide next to submersed plants growing at the bottom of a body of water. AKA “Deep water injection”

Question 3

Invert Emulsion

Answer 3

A blend of water and inverting oil that forms droplets of water surrounded by oil.

Question 4

Subsurface injection

Answer 4

A spray treatment that places herbicide just below the surface of the water. Controls submersed weeds that grow close to the surface.

Question 5

Wetting Agent

Answer 5

An adjuvant that causes a liquid to contact plant surfaces more thoroughly.

Question 6

Surface treatment

Answer 6

Used to control floating, emersed, and ditchbank plants.

Question 7

Direct metering system

Answer 7

Draws water directly from a lake, pond or other water body and places a set amount of herbicide into the water before it is applied. Only effective for mixtures that do not require agitation.

Question 8

Fathometer

Answer 8

Used to measure the depth of the water.

Question 9

Tachometer

Answer 9

Monitors speed when measuring long distances over water.

Question 10

Centrifugal Spreader

Answer 10

Device that uses mechanical force to sling herbicide granuals onto the surface of the water.

Question 11

Boom application

Answer 11

Method used to apply a product uniformly over a large area

Question 12

Handgun spraying

Answer 12

Method used to apply herbicide to floating, emersed, and ditchbank plants, allows you to select which plants/area to treat and avoid non target plants.

Question 13

Polymers

Answer 13

Often added to herbicides to reduce drift by thickening the spray mixture. Should stay between 0.1-0.5% of total spray volume.