yield, and expected grain value are all factors to
determine....
Economic Injury level
What should be done if scouting detects an important
pest, but its numbers do not reach the economic
threshold?
Do not treat, but scout again later.
,When scouting, where in the field should you sample?
random
What are the 4 types of control measures used in an IPM?
Cultural, Mechanical, Biological, Chemical
,At what stage in the life-cycle of a Corn rootworm does it
prune and tunnel through the roots causing stalk lodging?
Larvae
At what life-cycle stage does a corn rootworm cause ear
damage by feeding on the silks?
Adult
, What are the economic thresholds when scouting for corn
rootworm beetles in corn?
When silks are green, 5 or more beetles per plant if silks
are clipped within 1/2 inch of the ear tip.
What are the economic thresholds when scouting for corn
rootworm beetles in soy?
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.