WISCONSIN PESTICIDE APPLICATOR
STUDY GUIDE 2026 TURF AND
LANDSCAPE QUESTIONS AND VERIFIED
SOLUTIONS
⩥ Which of the following words is that number of pests per plant or the
amount of damage to a
plant at which point control measures should begin? Answer: Economic
Threshold
⩥ The disease that is generally the result of unfavorable growing
conditions, such as temperature
or moisture extremes, soil compaction, pesticide or fertilizer excess,
etc..? Answer: Noninfectious Disease
⩥ The first step in planning a successful weed control program is
Answer: Identify the weed (scouting)
⩥ Broadleaf weeds differ from grasses how Answer: They have netted
veins that are usually less elongated than that of grass leaves.
⩥ This weed germinates in the spring, develops a root system and a low-
growing cluster of
, leaves called a rosette? Answer: Biennial
⩥ The part of the pesticide that kills is the? Answer: Active ingredient
⩥ What do Wettable powders require when mixed with water.... Answer:
agitation
⩥ What do Surfactants do? Answer: Decrease the surface tension of
water, allowing the water carrier to spread over the
surface.
⩥ Can you mix two pesticides together if the label doesn't specify they
can be mixed? Answer: Yes, your responsibility to make sure they retain
their properties.
⩥ How can you tell two pesticides are not compatible? Answer: The
mixture may curdle, gel or become sludge like.
⩥ The pre-harvest interval is the? Answer: Amount of time that a crop
can be harvested after it has been sprayed.
⩥ Which of the following is on every label? Answer: Keep out of Reach
of Children.
STUDY GUIDE 2026 TURF AND
LANDSCAPE QUESTIONS AND VERIFIED
SOLUTIONS
⩥ Which of the following words is that number of pests per plant or the
amount of damage to a
plant at which point control measures should begin? Answer: Economic
Threshold
⩥ The disease that is generally the result of unfavorable growing
conditions, such as temperature
or moisture extremes, soil compaction, pesticide or fertilizer excess,
etc..? Answer: Noninfectious Disease
⩥ The first step in planning a successful weed control program is
Answer: Identify the weed (scouting)
⩥ Broadleaf weeds differ from grasses how Answer: They have netted
veins that are usually less elongated than that of grass leaves.
⩥ This weed germinates in the spring, develops a root system and a low-
growing cluster of
, leaves called a rosette? Answer: Biennial
⩥ The part of the pesticide that kills is the? Answer: Active ingredient
⩥ What do Wettable powders require when mixed with water.... Answer:
agitation
⩥ What do Surfactants do? Answer: Decrease the surface tension of
water, allowing the water carrier to spread over the
surface.
⩥ Can you mix two pesticides together if the label doesn't specify they
can be mixed? Answer: Yes, your responsibility to make sure they retain
their properties.
⩥ How can you tell two pesticides are not compatible? Answer: The
mixture may curdle, gel or become sludge like.
⩥ The pre-harvest interval is the? Answer: Amount of time that a crop
can be harvested after it has been sprayed.
⩥ Which of the following is on every label? Answer: Keep out of Reach
of Children.
