ILLINOIS SEED TREATMENT STUDY GUIDE 2025/2026
QUESTIONS WITH ANSWERS GRADED A+
✔✔Compatible - ✔✔When two or more pesticides can be safely mixed and applied in
combination without unfavorably affecting toxicity, physical properties, or plant safety
✔✔Complete metamorphosis - ✔✔Type of insect development characterized by four
distinct stages: egg, larva, pupa, and adult
✔✔Contact - ✔✔A pesticide that controls pest organisms upon touching
✔✔Continuous flow treater - ✔✔Treater system that treats a known amount of seed with
a matching amount of chemical at a given flow rate
✔✔Damping off - ✔✔Rapid, lethal decline of germinating seeds of seedling before or
after emergence
✔✔Dose Rate - ✔✔The quantity of pesticide applied to a given site or target
✔✔Economic damage - ✔✔The amount of injury that will justify the cost of applied
control measures
✔✔Economic Injury Level - ✔✔The lowest population density of a pest that will cause
economic damage or the amount of pest injury that will justify the cost of control
✔✔Ectoparasite - ✔✔Parasite that feeds from the exterior of its host
✔✔Endoparasite - ✔✔Parasitic organism that lives and feeds from inside its host
✔✔Exposure - ✔✔The unwanted contact with pesticides or pesticide residues by
people, other organisms, or the environment
✔✔Formulation - ✔✔The pesticide product as purchased, usually consisting of a
mixture of active and inert ingredients
✔✔Fungi - ✔✔An organism incapable if producing its own food supply by
photosynthesis, usually having microscopic threadlike feeding structures and
reproductive spores
✔✔Fungicide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling, or mitigating any fungi
✔✔Gradual Metamorphosis - ✔✔A gradual change involving little more than an
increase in size, which occurs during the life cycle of certain insects
, ✔✔Hazardous waste - ✔✔A solid, liquid, or a contained gaseous material that is no
longer used or that is no longer serves the purpose for which it was produced, and
could pose dangers to human health and the environment after it is discarded
✔✔Incompatible - ✔✔The quality of being unable to mix together properly, as when
pesticides do not form a uniform solution or suspension
✔✔Inert Ingredient - ✔✔The materials in a pesticide formulation that have no pesticide
activity
✔✔Inoculant - ✔✔The bacteria, viruses, or fungi applied to seed
✔✔Insect - ✔✔A small invertebrate animal with three body regions and six jointed legs,
usually winged
✔✔Insecticide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling or mitigating any insects and related forms that may be present in
any environment
✔✔Integrated Pest Management (IPM) - ✔✔An ecological approach to pest
management in which all available, necessary techniques are consolidated into a
unified program so that the pest populations can be managed in such a manner that
economic damage is avoided and adverse side effects are minimized
✔✔Larva - ✔✔An immature stage of an insect that undergoes complete metamorphosis
or an immature stage of a nematode
✔✔Material Safety Data Sheet (MSDS) - ✔✔Form available from manufactures that
contains specific information regarding the properties of a particular chemical
✔✔Metamorphosis - ✔✔A change in the shape, form, and/or size of an insect
✔✔Nematicide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling, or mitigating nematodes or subterranean pests
✔✔Nematode - ✔✔Non-segmented roundworm, parasitic on plants or animals, or free
living in water or soil
✔✔Nonsystemic - ✔✔Not capable of affecting the entire system; limited to particular
areas of a plant
✔✔Nymph - ✔✔A juvenile form of an insect that undergoes gradual metamorphosis with
the exception of size, its external appearance is similar to that of the adult
QUESTIONS WITH ANSWERS GRADED A+
✔✔Compatible - ✔✔When two or more pesticides can be safely mixed and applied in
combination without unfavorably affecting toxicity, physical properties, or plant safety
✔✔Complete metamorphosis - ✔✔Type of insect development characterized by four
distinct stages: egg, larva, pupa, and adult
✔✔Contact - ✔✔A pesticide that controls pest organisms upon touching
✔✔Continuous flow treater - ✔✔Treater system that treats a known amount of seed with
a matching amount of chemical at a given flow rate
✔✔Damping off - ✔✔Rapid, lethal decline of germinating seeds of seedling before or
after emergence
✔✔Dose Rate - ✔✔The quantity of pesticide applied to a given site or target
✔✔Economic damage - ✔✔The amount of injury that will justify the cost of applied
control measures
✔✔Economic Injury Level - ✔✔The lowest population density of a pest that will cause
economic damage or the amount of pest injury that will justify the cost of control
✔✔Ectoparasite - ✔✔Parasite that feeds from the exterior of its host
✔✔Endoparasite - ✔✔Parasitic organism that lives and feeds from inside its host
✔✔Exposure - ✔✔The unwanted contact with pesticides or pesticide residues by
people, other organisms, or the environment
✔✔Formulation - ✔✔The pesticide product as purchased, usually consisting of a
mixture of active and inert ingredients
✔✔Fungi - ✔✔An organism incapable if producing its own food supply by
photosynthesis, usually having microscopic threadlike feeding structures and
reproductive spores
✔✔Fungicide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling, or mitigating any fungi
✔✔Gradual Metamorphosis - ✔✔A gradual change involving little more than an
increase in size, which occurs during the life cycle of certain insects
, ✔✔Hazardous waste - ✔✔A solid, liquid, or a contained gaseous material that is no
longer used or that is no longer serves the purpose for which it was produced, and
could pose dangers to human health and the environment after it is discarded
✔✔Incompatible - ✔✔The quality of being unable to mix together properly, as when
pesticides do not form a uniform solution or suspension
✔✔Inert Ingredient - ✔✔The materials in a pesticide formulation that have no pesticide
activity
✔✔Inoculant - ✔✔The bacteria, viruses, or fungi applied to seed
✔✔Insect - ✔✔A small invertebrate animal with three body regions and six jointed legs,
usually winged
✔✔Insecticide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling or mitigating any insects and related forms that may be present in
any environment
✔✔Integrated Pest Management (IPM) - ✔✔An ecological approach to pest
management in which all available, necessary techniques are consolidated into a
unified program so that the pest populations can be managed in such a manner that
economic damage is avoided and adverse side effects are minimized
✔✔Larva - ✔✔An immature stage of an insect that undergoes complete metamorphosis
or an immature stage of a nematode
✔✔Material Safety Data Sheet (MSDS) - ✔✔Form available from manufactures that
contains specific information regarding the properties of a particular chemical
✔✔Metamorphosis - ✔✔A change in the shape, form, and/or size of an insect
✔✔Nematicide - ✔✔Any substance or mixture of substances intended for preventing,
destroying, repelling, or mitigating nematodes or subterranean pests
✔✔Nematode - ✔✔Non-segmented roundworm, parasitic on plants or animals, or free
living in water or soil
✔✔Nonsystemic - ✔✔Not capable of affecting the entire system; limited to particular
areas of a plant
✔✔Nymph - ✔✔A juvenile form of an insect that undergoes gradual metamorphosis with
the exception of size, its external appearance is similar to that of the adult
