WYOMING 903A PESTICIDE
APPLICATOR CERTIFICATION. EXAM
QUESTIONS AND ANSWERS 100% PASS.
Pest - ANS An undesirable organism that injures humans, desirable plants and animals,
manufactured products, or natural substances
Pathogens - ANS organisms that cause disease including viruses, bacteria and fungi
pesticide resistance - ANS the ability of a pest to withstand exposure to a given pesticide; the
result of natural selection favoring the survivors of an original population that was exposed to
the pesticide
Bioaccumulation - ANS The accumulation of a substance, such as a toxic chemical, in various
tissues of a living organism.
Biomagnification - ANS the concentration of toxins in an organism as a result of its ingesting
other plants or animals in which the toxins are more widely disbursed.
Food chain - ANS Sequence of animals feeding in the natural environment
Four main groups of pests - ANS Weeds, invertebrate organisms, pathogens, and vertebrate
animals
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, First step in pest management - ANS Accurately identify the pest
abiotic factors - ANS Natural control measures within the environment including climatic
factors, air or water pollution, and topographic features
Pest Management Methods - ANS Natural controls and applied controls.
Applied controls - ANS Pest control measures used by humans. These include biological,
cultural, genetic, regulatory, mechanical, and chemical control.
biological control - ANS the control of a pest by the introduction of a natural enemy or
predator.
chemical control - ANS Use of pesticides or herbicides to manage an unwanted organism(s)
(photo: herbicide used to kill dandelions)
Avicides - ANS Control pest birds
bactericide - ANS substance that kills bacteria
Chemosterilants - ANS Sterilize insects or pest vertebrates
Defoliants - ANS Causes leaves to drop from plants
Desiccants - ANS drying agents
disinfectants - ANS Chemical products that destroy all bacteria, fungi, and viruses (but not
spores) on surfaces.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
APPLICATOR CERTIFICATION. EXAM
QUESTIONS AND ANSWERS 100% PASS.
Pest - ANS An undesirable organism that injures humans, desirable plants and animals,
manufactured products, or natural substances
Pathogens - ANS organisms that cause disease including viruses, bacteria and fungi
pesticide resistance - ANS the ability of a pest to withstand exposure to a given pesticide; the
result of natural selection favoring the survivors of an original population that was exposed to
the pesticide
Bioaccumulation - ANS The accumulation of a substance, such as a toxic chemical, in various
tissues of a living organism.
Biomagnification - ANS the concentration of toxins in an organism as a result of its ingesting
other plants or animals in which the toxins are more widely disbursed.
Food chain - ANS Sequence of animals feeding in the natural environment
Four main groups of pests - ANS Weeds, invertebrate organisms, pathogens, and vertebrate
animals
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, First step in pest management - ANS Accurately identify the pest
abiotic factors - ANS Natural control measures within the environment including climatic
factors, air or water pollution, and topographic features
Pest Management Methods - ANS Natural controls and applied controls.
Applied controls - ANS Pest control measures used by humans. These include biological,
cultural, genetic, regulatory, mechanical, and chemical control.
biological control - ANS the control of a pest by the introduction of a natural enemy or
predator.
chemical control - ANS Use of pesticides or herbicides to manage an unwanted organism(s)
(photo: herbicide used to kill dandelions)
Avicides - ANS Control pest birds
bactericide - ANS substance that kills bacteria
Chemosterilants - ANS Sterilize insects or pest vertebrates
Defoliants - ANS Causes leaves to drop from plants
Desiccants - ANS drying agents
disinfectants - ANS Chemical products that destroy all bacteria, fungi, and viruses (but not
spores) on surfaces.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
