NEBRASKA PESTICIDE LATEST
APPLICATOR
CERTIFICATION
What does LD50 stand for - ANSWERS-Lethal dose 50% refers to the
dosage of a given substance required to kill 50% of test population under
a standard set of conditions
What is LC50 - ANSWERS-Lethal concentration 50% refers to the
concentration of a substance in air or water required to kill 50% of the
test population
What is Hazard Class I and what is the signal word - ANSWERS-a class
for pesticides that are highly toxic due to acute contact toxicity and the
label must have the word DANGER
What is Hazard Class II and what is the signal word - ANSWERS-a
class for pesticides that are moderately toxic and the label must have the
word WARNING
What is Hazard Class III and what is the signal word - ANSWERS-a
class of pesticides that are considered slightly toxic and the label must
have the word CAUTION
END OF
PAGE
1
, NEBRASKA PESTICIDE LATEST
APPLICATOR
CERTIFICATION
What signal word should be used if the pesticide is highly toxic due to
acute oral, dermal, or inhalation toxicity (a very low dosage could kill a
person a few drops to 1 teaspoon) - ANSWERS-DANGER-POISON
What signal word must be used if the pesticide causes severe damage to
skin, eyes, or lungs - ANSWERS-DANGER
What signal word must be used if there is a moderate toxicity causing
injury to the skin, eyes, respiratory tract - ANSWERS-WARNING
What signal word must be used if the pesticide is considered slightly
toxic and could cause general irritation to the eyes, skin, or respiratory
tract - ANSWERS-CAUTION
What are the typical symptoms to look out for in pesticide exposure -
ANSWERS-irritation to the skin, eyes, nose, or respiratory system,
failure of blood clotting, respiratory failure, nausea, dizziness, weakness,
nervousness, vomiting, headaches, diarrhea, confusion, fatigue, blurred
vision, excess sweating/salivation, stomach cramps, failure to walk,
chest pain or discomfort, passing out, muscle twitching, running nose
and drooling, difficulty breathing, coma/death
END OF
PAGE
2
, NEBRASKA PESTICIDE LATEST
APPLICATOR
CERTIFICATION
Why is crop rotation an important IPM practice - ANSWERS-it can help
avoid herbicide resistant weeds from taking over fields
List the 5 observations that you should make during a scouting trip -
ANSWERS-which pests are present
what stage of growth each pest and the crops are in
whether the pests are parasitized or diseased
whether pests infestation is increasing or decreasing
condition of the crops
Define Economic Threshold - ANSWERS-the pest density at which
some control should be used to prevent a pest population from
increasing further and causing economic loss
Define Damage Threshold - ANSWERS-the maximum damage a crop
can sustain without yield loss
END OF
PAGE
3
APPLICATOR
CERTIFICATION
What does LD50 stand for - ANSWERS-Lethal dose 50% refers to the
dosage of a given substance required to kill 50% of test population under
a standard set of conditions
What is LC50 - ANSWERS-Lethal concentration 50% refers to the
concentration of a substance in air or water required to kill 50% of the
test population
What is Hazard Class I and what is the signal word - ANSWERS-a class
for pesticides that are highly toxic due to acute contact toxicity and the
label must have the word DANGER
What is Hazard Class II and what is the signal word - ANSWERS-a
class for pesticides that are moderately toxic and the label must have the
word WARNING
What is Hazard Class III and what is the signal word - ANSWERS-a
class of pesticides that are considered slightly toxic and the label must
have the word CAUTION
END OF
PAGE
1
, NEBRASKA PESTICIDE LATEST
APPLICATOR
CERTIFICATION
What signal word should be used if the pesticide is highly toxic due to
acute oral, dermal, or inhalation toxicity (a very low dosage could kill a
person a few drops to 1 teaspoon) - ANSWERS-DANGER-POISON
What signal word must be used if the pesticide causes severe damage to
skin, eyes, or lungs - ANSWERS-DANGER
What signal word must be used if there is a moderate toxicity causing
injury to the skin, eyes, respiratory tract - ANSWERS-WARNING
What signal word must be used if the pesticide is considered slightly
toxic and could cause general irritation to the eyes, skin, or respiratory
tract - ANSWERS-CAUTION
What are the typical symptoms to look out for in pesticide exposure -
ANSWERS-irritation to the skin, eyes, nose, or respiratory system,
failure of blood clotting, respiratory failure, nausea, dizziness, weakness,
nervousness, vomiting, headaches, diarrhea, confusion, fatigue, blurred
vision, excess sweating/salivation, stomach cramps, failure to walk,
chest pain or discomfort, passing out, muscle twitching, running nose
and drooling, difficulty breathing, coma/death
END OF
PAGE
2
, NEBRASKA PESTICIDE LATEST
APPLICATOR
CERTIFICATION
Why is crop rotation an important IPM practice - ANSWERS-it can help
avoid herbicide resistant weeds from taking over fields
List the 5 observations that you should make during a scouting trip -
ANSWERS-which pests are present
what stage of growth each pest and the crops are in
whether the pests are parasitized or diseased
whether pests infestation is increasing or decreasing
condition of the crops
Define Economic Threshold - ANSWERS-the pest density at which
some control should be used to prevent a pest population from
increasing further and causing economic loss
Define Damage Threshold - ANSWERS-the maximum damage a crop
can sustain without yield loss
END OF
PAGE
3
