ILLINOIS IPM, PEST SCOUTING, AND
HERBICIDE APPLICATION TEST GUIDE
2025 | ACCURATE THRESHOLDS AND
CONTROL METHODS |GUARANTEED
ACCURATE ANSWERS |VERIFIED
Various, economical, environmentally sound, socially acceptable -
ACCURATE ANSWERS✔✔ An integrated pest management program
is based upon what factors
Economic threshhold - ACCURATE ANSWERS✔✔ What is the
number of pests that should be controlled to prevent economic damage
from occurring?
Economic Injury level - ACCURATE ANSWERS✔✔ Number of pests,
costs of various treatments, expected yield, and expected grain value are
all factors to determine....
Do not treat, but scout again later. - ACCURATE ANSWERS✔✔ What
should be done if scouting detects an important pest, but its numbers do
not reach the economic threshold?
Random - ACCURATE ANSWERS✔✔ When scouting, where in the
field should you sample?
,Cultural, Mechanical, Biological, Chemical - ACCURATE
ANSWERS✔✔ What are the 4 types of control measures used in an
IPM?
Larvae - ACCURATE ANSWERS✔✔ At what stage in the life-cycle of
a Corn rootworm does it prune and tunnel through the roots causing
stalk lodging?
Adult - ACCURATE ANSWERS✔✔ At what life-cycle stage does a
corn rootworm cause ear damage by feeding on the silks?
When silks are green, 5 or more beetles per plant if silks are clipped
within 1/2 inch of the ear tip. - ACCURATE ANSWERS✔✔ What are
the economic thresholds when scouting for corn rootworm beetles in
corn?
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. -
ACCURATE ANSWERS✔✔ What are the economic thresholds when
scouting for corn rootworm beetles in soy?
Feed on the leaves and older larvae cause leaf cutting leading to reduced
stands. - ACCURATE ANSWERS✔✔ What damage does a black
cutworm larvae do to corn seedlings?
EXAMLINKS
STUDY SMART.
, Crop debris, winter annaul weeds, late planted - ACCURATE
ANSWERS✔✔ What are 3 factors that have the most potential to lead
to black cutworm damage?
Rescue treatments when nessisary - ACCURATE ANSWERS✔✔ What
is the recommended method for managing black cutworms in IL?
European corn borer - ACCURATE ANSWERS✔✔ What type of larvae
causes whorl damage in 1st generation, stalk tunneling damage in the
2nd generation with possible ear tunneling and stalk rot?
Leaf Aphid - ACCURATE ANSWERS✔✔ Damages corn by coating the
tassels and silks with honeydew which reduces pollination.
Japanese beetle grubs and other white grubs. - ACCURATE
ANSWERS✔✔ What insects have white, C-shaped, and about 1 inch
long larvea which can be differentiated by their raster patterns?
Japanese beetle grubs - ACCURATE ANSWERS✔✔ They chew on the
roots and root hairs of seedlings resulting in irregular emergence,
reduced stands, and stunted or wilted plants. Injured plants may turn
purple because they cannot take up phosphorus.
EXAMLINKS
STUDY SMART.
HERBICIDE APPLICATION TEST GUIDE
2025 | ACCURATE THRESHOLDS AND
CONTROL METHODS |GUARANTEED
ACCURATE ANSWERS |VERIFIED
Various, economical, environmentally sound, socially acceptable -
ACCURATE ANSWERS✔✔ An integrated pest management program
is based upon what factors
Economic threshhold - ACCURATE ANSWERS✔✔ What is the
number of pests that should be controlled to prevent economic damage
from occurring?
Economic Injury level - ACCURATE ANSWERS✔✔ Number of pests,
costs of various treatments, expected yield, and expected grain value are
all factors to determine....
Do not treat, but scout again later. - ACCURATE ANSWERS✔✔ What
should be done if scouting detects an important pest, but its numbers do
not reach the economic threshold?
Random - ACCURATE ANSWERS✔✔ When scouting, where in the
field should you sample?
,Cultural, Mechanical, Biological, Chemical - ACCURATE
ANSWERS✔✔ What are the 4 types of control measures used in an
IPM?
Larvae - ACCURATE ANSWERS✔✔ At what stage in the life-cycle of
a Corn rootworm does it prune and tunnel through the roots causing
stalk lodging?
Adult - ACCURATE ANSWERS✔✔ At what life-cycle stage does a
corn rootworm cause ear damage by feeding on the silks?
When silks are green, 5 or more beetles per plant if silks are clipped
within 1/2 inch of the ear tip. - ACCURATE ANSWERS✔✔ What are
the economic thresholds when scouting for corn rootworm beetles in
corn?
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. -
ACCURATE ANSWERS✔✔ What are the economic thresholds when
scouting for corn rootworm beetles in soy?
Feed on the leaves and older larvae cause leaf cutting leading to reduced
stands. - ACCURATE ANSWERS✔✔ What damage does a black
cutworm larvae do to corn seedlings?
EXAMLINKS
STUDY SMART.
, Crop debris, winter annaul weeds, late planted - ACCURATE
ANSWERS✔✔ What are 3 factors that have the most potential to lead
to black cutworm damage?
Rescue treatments when nessisary - ACCURATE ANSWERS✔✔ What
is the recommended method for managing black cutworms in IL?
European corn borer - ACCURATE ANSWERS✔✔ What type of larvae
causes whorl damage in 1st generation, stalk tunneling damage in the
2nd generation with possible ear tunneling and stalk rot?
Leaf Aphid - ACCURATE ANSWERS✔✔ Damages corn by coating the
tassels and silks with honeydew which reduces pollination.
Japanese beetle grubs and other white grubs. - ACCURATE
ANSWERS✔✔ What insects have white, C-shaped, and about 1 inch
long larvea which can be differentiated by their raster patterns?
Japanese beetle grubs - ACCURATE ANSWERS✔✔ They chew on the
roots and root hairs of seedlings resulting in irregular emergence,
reduced stands, and stunted or wilted plants. Injured plants may turn
purple because they cannot take up phosphorus.
EXAMLINKS
STUDY SMART.
