Illinois Field Crop Applicators
Test Questions and Answers
100% Pass
An integrated pest management program is based upon what factors? -
Answer: various, economical, environmentally sound, socially acceptable
Question: What is the number of pests that should be controlled to prevent
economic damage from occurring? -
Answer: Economic threshhold
Question: Number of pests, costs of various treatments, expected yield, and
expected grain value are all factors to determine.... -
Answer: Economic Injury level
,Question: What should be done if scouting detects an important pest, but its
numbers do not reach the economic threshold? -
Answer: Do not treat, but scout again later.
Question: When scouting, where in the field should you sample? -
Answer: random
Question: What are the 4 types of control measures used in an IPM? -
Answer: Cultural, Mechanical, Biological, Chemical
Question: At what stage in the life-cycle of a Corn rootworm does it prune and
tunnel through the roots causing stalk lodging? -
Answer: Larvae
Question: At what life-cycle stage does a corn rootworm cause ear damage by
feeding on the silks? -
Answer: Adult
, Question: What are the economic thresholds when scouting for corn rootworm
beetles in corn? -
Answer: When silks are green, 5 or more beetles per plant if silks are clipped
within 1/2 inch of the ear tip.
Question: What are the economic thresholds when scouting for corn rootworm
beetles in soy? -
Answer: From late July to late august at least 5 beetles per unbaited pherocon AM
trap in soybeans or .75 beetles per plant in non-rotated corn.
Question: What damage does a black cutworm larvae do to corn seedlings? -
Answer: feed on the leaves and older larvae cause leaf cutting leading to reduced
stands.
Question: What are 3 factors that have the most potential to lead to black
cutworm damage? -
Answer: Crop debris, winter annaul weeds, late planted
Test Questions and Answers
100% Pass
An integrated pest management program is based upon what factors? -
Answer: various, economical, environmentally sound, socially acceptable
Question: What is the number of pests that should be controlled to prevent
economic damage from occurring? -
Answer: Economic threshhold
Question: Number of pests, costs of various treatments, expected yield, and
expected grain value are all factors to determine.... -
Answer: Economic Injury level
,Question: What should be done if scouting detects an important pest, but its
numbers do not reach the economic threshold? -
Answer: Do not treat, but scout again later.
Question: When scouting, where in the field should you sample? -
Answer: random
Question: What are the 4 types of control measures used in an IPM? -
Answer: Cultural, Mechanical, Biological, Chemical
Question: At what stage in the life-cycle of a Corn rootworm does it prune and
tunnel through the roots causing stalk lodging? -
Answer: Larvae
Question: At what life-cycle stage does a corn rootworm cause ear damage by
feeding on the silks? -
Answer: Adult
, Question: What are the economic thresholds when scouting for corn rootworm
beetles in corn? -
Answer: When silks are green, 5 or more beetles per plant if silks are clipped
within 1/2 inch of the ear tip.
Question: What are the economic thresholds when scouting for corn rootworm
beetles in soy? -
Answer: From late July to late august at least 5 beetles per unbaited pherocon AM
trap in soybeans or .75 beetles per plant in non-rotated corn.
Question: What damage does a black cutworm larvae do to corn seedlings? -
Answer: feed on the leaves and older larvae cause leaf cutting leading to reduced
stands.
Question: What are 3 factors that have the most potential to lead to black
cutworm damage? -
Answer: Crop debris, winter annaul weeds, late planted
