2026 QUESTIONS AND SOLUTIONS
GRADED A+
◉ Acaricide
Answer: Kills mites, ticks, and spiders.
◉ Herbicide
Answer: A substance used to destroy plants, especially weeds.
◉ Molluscicide
Answer: A chemical used to control snails and slugs.
◉ Rodenticide
Answer: A chemical or agent used to destroy rats or other rodent
pests, or to prevent them from damaging food, crops, etc.
◉ Signal Word: Danger
Answer: Highly toxic/corrosive, LD50 between 0-50 (Category 1)
,◉ Signal Word: Warning
Answer: Moderately toxic or can cause moderate eye or skin
irritation, LD50 between 50-500 (Category 2)
◉ Signal Word: Caution
Answer: Slightly toxic, LD50 between 500 and 5,000 (Category 3)
◉ Pesticide Mode of Action (MOA)
Answer: The method by which it kills or adversely affects the target
pest.
◉ Contact Herbicide
Answer: An herbicide that will not move or translocate within the
plant.
◉ Systemic Herbicide
Answer: An herbicide that is absorbed by the roots of the plant and
translocated throughout the plant.
◉ Wettable Powders (WP)
Answer: These dry products are mixed with water but are not
entirely soluble. They require agitation to keep them in solution.
They can also be abrasive to spray equipment. It is the safest to use if
, phytoxicity is a concern. Inhalation of dust during mixing and
handling can be a cause for concern.
◉ Dry Flowables (Water Dispersable Granules) (WDG)
Answer: Small granules that disperse in solution. help reduce dust
and allow to flow like a liquid. settle out quickly, abrasive to
equipment. Measuring and mixing is simple because it is packaged
in easy-to-pour plastic containers.
◉ Soluble Powders (SP)
Answer: A dry formulation that is mixed with water and dissolves
readily to form a true solution. It is not abrasive to spray nozzles or
pumps. While mixing, inhalation of SP's is a potential hazard.
◉ Emulsifiable Concentrate (EC)
Answer: A pesticide formulation produced by mixing an active
ingredient and an emulsifying agent in a suitable petroleum solvent.
When combined with water, a milky emulsion is usually formed. It is
among the most versatile and has many applications. If spilled, they
spread easily and are difficult to clean; clothing and leather boots
readily absorb them; passes through skin more readily than
powders and may cause serious injury if splashed into the eyes.
◉ Flowables (F)