Significant Stink Bug Pressure in Corn


With replant situations in other crops, the region’s corn crop has been left to its own here lately, and NC State Extension Corn Specialist, Dr. Ron Heiniger says micro-nutrient deficiencies need to be addressed, but insect pressure this year has been significant:

“Actually, we’ve seen quite a bit of insect pressure.  Stink bugs, I guess because of the warmer weather back in March and April have already been really active this year, even on seedling corn.  So, we’ve certainly seen stink bugs, and they will probably continue to plague us all the way to tassle time. The critical thing about stink bugs is that you have to catch them right as the ear is being formed, because that’s where they do their biggest damage is where they feed right directly on that developing ear, and that’s about V-12, or about two weeks before tassle.  So, this is a critical time here as corn really shoots up and starts to form that ear for stink bug pressure. I think that’s certainly something we want to think about.

“We’re also still seeing some bill bug pressure, and they’re lasting into late May, I guess it stayed cool enough there in early May for them to stick around, they don’t usually like warm weather, and our Pancho treatment seems to have been a little less effective. 

“Particularly stink bugs, but insects this year, but I think this year insects are going to be a thing that’s going to be frustrating on this corn.”

Let me ask you, here in north central North Carolina we had as much as 2.5 inches of rain, from late Sunday afternoon until the early morning hours of Tuesday, have you heard of any corn that may have received too much rain and is standing in water?

“I have not, but it may be a little early for me, for information to get back to me. I have heard of up to 4 inches of rain in North Hampton County and some flooding.  So, indeed, there could be some corn in standing water, or has some water on it right now.  Usually, at this stage we can take standing water for up to 72 hours, so hopefully get this water off these fields.

“I’m concerned about a little wind, although I haven’t heard about any damage, or laying corn over.”

Dr. Ron Heiniger, NC State Extension Corn Specialist.

A native of the Texas Panhandle, Rhonda was born and raised on a cotton farm where she saw cotton farming evolve from ditch irrigation to center pivot irrigation and harvest trailers to modules. After graduating from Texas Tech University, she got her start in radio with KGNC News Talk 710 in Amarillo, Texas.