Controlling Bollworm in Soybean

Controlling Bollworm in Soybean


Bollworm we feel like is one of the most destructive
soybean pests that we have. You know with the high overhead heat that we are experiencing,
we are getting a little slippage on our control. We’re seeing some failures and I’m not, I
don’t think it’s all associated with the insecticide at all, in fact, I think a lot of our problem
is application. And first and foremost is volume, I think we need to keep our gallons
per acre, our volume up to five gallons per acre by air, a minimum of ten gallons per
acre by ground to ensure that you get good thorough adequate coverage into the canopy
where those bollworms are. The second thing is particularly with aerial applications,
we’re recommending the use of a crop oil at one percent or at least an adjuvant to help
you in that situation. And thirdly, in these situations where we have these extremely high
populations, we’re telling growers they need to spray with a pyrethroid at the recommend
rate plus a half a pound of acephate or if they get into a situation where they have
a re-treatment, they probably need to look at some alternate chemistry such as Steward
or Lannate. 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.