7A Questions And Answers Latest Top
Score.
ABSORPTION - correct answer. The movement of a chemical into
plants, animals (including humans), and/or microorganisms.
ACARICIDE - correct answer. A pesticide used to control mites and
ticks. Amiticide is an acaricide.
ACTIVE INGREDIENT - correct answer. The chemical or chemicals in a
pesticide responsible for killing, poisoning, or repelling
the pest. Listed separately in the ingredient statement.
ACUTE TOXICITY - correct answer. The capacity of a pesticide to cause
injury within 24 hours following exposure. LD50 and LC50
are common indicators of the degree of acute toxicity.
(See also chronic toxicity).
ADJUVANT - correct answer. A substance added to a pesticide to
improve its effectiveness or safety. Same as additive.
Examples: penetrants, spreader-stickers, and wetting
agents.
ADSORPTION - correct answer. The process by which chemicals are
held or bound to a surface by physical or chemical attraction.
Clay and high organic soils tend to adsorb pesticides.
AGGREGATION PHEROMONE - correct answer. See pheromone.
,AEROSOL - correct answer. Amaterial stored in a container under pressure.
Fine droplets are produced when the material dissolved
in a liquid carrier is released into the air from the
pressurized container.
ALGAE - correct answer. Relatively simple plants that contain chlorophyll
and are photosynthetic.
ALGICIDE - correct answer. Apesticide used to kill or inhibit algae.
ANTI-SIPHONING DEVICE - correct answer. A device attached to the
filling hose that prevents backflow or back-siphoning
from a spray tank into a water source.
ANTICOAGULANT - correct answer. A chemical that prevents normal
blood clotting—the active ingredient in some rodenticides.
ANTIDOTE - correct answer. A treatment used to counteract the effects
of pesticide poisoning or some other poison in the body.
ARACHNID - correct answer. A wingless arthropod with two body
regions and four pairs of jointed legs. Spiders, ticks, and
mites are in the class Arachnida.
ARTHROPOD - correct answer. An invertebrate animal characterized
by a jointed body and limbs and usually a hard body covering
that is molted at intervals. For example, insects,
mites, and crayfish are in the phylum Arthropoda.
ATTRACTANT - correct answer. A substance or device that will lure
pests to a trap or poison bait.
AVICIDE - correct answer. A pesticide used to kill or repel birds. Birds
are in the class Aves.
BACTERIA - correct answer. Microscopic organisms, some of which are
capable of producing diseases in plants and animals.
Others are beneficial.
BACTERICIDE - correct answer. Chemical used to control bacteria.
BAIT - correct answer. Afood or other substance used to attract a pest to
a pesticide or to a trap.
BARRIER APPLICATION - correct answer. Application of a pesticide
in a strip alongside or around a structure, a portion of a
, structure, or any object.
BENEFICIAL INSECT - correct answer. An insect that is useful or helpful
to humans; usually insect parasites, predators, pollinators,
etc.
BIOLOGICAL CONTROL - correct answer. Control of pests using
predators, parasites, and disease-causing organisms.
May be naturally occurring or introduced.
BIOMAGNIFICATION - correct answer. The process whereby one
organism accumulates chemical residues in higher concentrations
from organisms it consumes.
BOTANICAL PESTICIDE - correct answer. A pesticide produced from
chemicals found in plants. Examples are nicotine,
pyrethrins, and strychnine.
BRAND NAME - correct answer. The name or designation of a specific
pesticide product or device made by a manufacturer or
formulator; a marketing name.
CALIBRATE, CALIBRATION OF EQUIPMENT,OR
APPLICATION METHOD - correct answer. The measurement of dispersal
or output and adjustments made to control the rate
of dispersal of pesticides.
CARBAMATES (N-methyl carbamates) - correct answer. A group of
pesticides containing nitrogen, formulated as insecticides,
fungicides and herbicides. The N-methyl carbamates
are insecticides and inhibit cholinesterase in animals.
CARCINOGENIC - correct answer. The ability of a substance or agent
to induce malignant tumors (cancer).
CARRIER - correct answer. An inert liquid, solid, or gas added to an
active ingredient to make a pesticide dispense effectively.
Acarrier is also the material, usually water or oil, used to
dilute the formulated product for application.
CEPHALOTHORAX - correct answer. Combination of the head and
thorax in a spider; eight legs are attached to the
cephalothorax.
CERCI—Short appendages emerging from the abdominal
segment of an insect (may help to identify an insect
species).