Vocabulary

Question 1

Define: Abatement

Answer 1

Reduction in pest populations to an acceptable level

Question 2

Define: acre

Answer 2

43,560 square feet

Question 3

Define: active ingredient

Answer 3

The chemicals in a formulated product principally responsible for the pesticides effects and shown as active ingredient on the pesticide label

Question 4

Define: acute toxicity

Answer 4

The amount of a substance, as a single dose, which causes poisoning in a test animal

Question 5

Define: adhesive

Answer 5

A substance that will make a spray material stick to the sprayed surface, often referred to as a sticking agent

Question 6

Define: adjuvant

Answer 6

Any substance in a pesticide formulation which enhances its effectiveness

Question 7

Define: adult

Answer 7

A fully grown, sexually mature organism

Question 8

Define: adulticide

Answer 8

An insecticide which is toxic to the adult stage of the organism

Question 9

Define: aerobic

Answer 9

Living in the presence of oxygen

Question 10

Define: aerosol

Answer 10

The suspension of very fine solid or liquid particles in gas. Particle diameters vary between about .1 and 50 microns.

Question 11

Define: aerosol generator

Answer 11

Application equipment that produces very small droplets that move easily in air currents

Question 12

Define: algae

Answer 12

No vascular chlorophyll containing plants, usually aquatic; can be filamentous or plankton

Question 13

Define: alkalinity

Answer 13

Containing sodium and potassium carbonate salts

Question 14

Define: aquatic plant

Answer 14

A plant that grows in water. There are three types: submergent (grows beneath waters surface), emergent (roots below surface, had foliage above surface), and floating

Question 15

Define: anthropoid

Answer 15

A large group of organisms characterized by an exoskeleton and jointed appendages. Insects, spiders, scorpions, etc.

Question 16

Define: gpa

Answer 16

Gallons per acre

Question 17

Define: gpm

Answer 17

Gallons per minute

Question 18

Define: LD50

Answer 18

Dose necessary to kill 50% of a test animal population, expressed in milligrams (mg) of toxicant per kilogram (kg) of body weight.

Question 19

Define: broadleaf plants

Answer 19

Classified as dicotyledons plants have two cotyledon leaves in the seedling stage; true leaves are broad and have netlike or reticulate veins.

Question 20

Define: cfs

Answer 20

Cubic feet per second

Question 21

Define: filler

Answer 21

A diluent in powder form

Question 22

Define: formulation

Answer 22

Mixture containing active ingredient, carrier, diligent s, and other additions required to make product ready for application.

Question 23

Define: micron

Answer 23

A unit of measure for spray droplet diameters. Approximately 25,000 microns = 1 inch.

Question 24

Define: phytotoxic

Answer 24

Injurious or toxic to plants

Question 25

Define: piscicide

Answer 25

Pesticides to control fish

Question 26

Define: potable water

Answer 26

Drinkable water

Question 27

Define: ppb

Answer 27

Parts per billion

Question 28

Define: ppm

Answer 28

Parts per million

Question 29

Define: restricted use pesticide

Answer 29

A product that has a potential to impact human health or the environment and can only be purchased by and used by a certified applicator.

Question 30

Define: spreading agent

Answer 30

A substance to improve the wetting, spreading, or adhesive properties of a spray

Question 31

Define: thermocline

Answer 31

Layers in water due to differences in water temperature

Question 32

Define: ULV

Answer 32

An ultra low volume application uses high volocity concentrated pesticide to generate extremely small droplets.

Question 33

Define: wriggler

Answer 33

Larval stage in mosquitos