Enterprising salespeople in some areas of
Illinois have encouraged corn growers to apply Pounce® (permethrin) preemergence
to cornfields in which seeds treated with Poncho® (clothianidin) have been
planted. The label for Poncho® indicates that cutworms will be controlled by
this insecticidal seed treatment. Apparently, there are those who question
whether Poncho® will work. It is seriously doubtful that Gustafson salespeople
are recommending the use of Pounce® (or other preventive insecticides for
cutworm control) in fields in which Poncho®-treated seed has been planted. Such
a recommendation from Gustafson representatives would suggest they have little
faith in their own product. Representatives from other companies thus must be
making the recommendation.
It is a fact that most cornfields in Illinois
are not attacked by black cutworms during any given year, especially when
planting occurs early. Consequently, the use of an insecticidal seed treatment,
such as Poncho, is not necessary for control of cutworms in most fields.
Nonetheless, some corn growers like the peace of mind they obtain from "insect
insurance" in the form of insecticidal seed treatments or soil insecticides. But
now, some people are recommending that the insurance of an insecticidal seed
treatment should also be insured. How much money are growers willing to shell
out for these irresponsible recommendations? If growers are operating on such
tight margins, why would an unnecessary expenditure be so easy to accept? Such
recommendations fly in the face of IPM principles. On the surface, an
insecticidal seed treatment plus another preventive insecticide seems like an
imprudent waste of money. (Univ. of Illinois The Bulletin, 5/14/04).