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Well the conditions that we have this year, hot dry weather to the south of us.
Louisiana, South Texas, Mexico are in a severe drought and drought favors caterpillar-type
pests.
Part of this problem we’ve seen with all this migration this year into Arkansas
is the fact that a lot of these bollworms had been treated before they ever got here,
[from] say Mexico or South Texas.
They had already been exposed to a lot of insecticides and so when we started to try
to make applications,
our standard is usually a pyrethroid, like Karate or Mustang Max®, Asana®, Baythroid®.
There’s a lot of pyrethroids out there. What we found was, because they had been exposed
to the pyrethroids earlier,
that we were seeing some loss of control with pyretroids,
so we’re talking about using a pyrethroid, but in conjunction with orthene tank mixing
or going with Steward, Belt or some of the newer products that are out there,
to help us get these populations under control, because we are experiencing tolerance with
the pyrethroids with these bollworms.
Your Arkansas Soybean podcast is a production of the University of Arkansas Division of
Agriculture
and was funded in part by the Arkansas Soybean Promotion Board.
For more information on Soybean Farming in Arkansas, contact your local county extension
office.