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Articles tagged under: Jan Knodel

Dry Weather Decreases the Risk for Wheat Midge

Published January 28, 2021

Due to dry conditions this past year, there has been a dramatic decline in the wheat midge population in North Dakota. Over 2,000 soil samples were collected this past fall. Eighty-six percent of those samples had zero wheat midge cocoons.…
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Canola Growers Meet to Review Research

Published November 8, 2020

The Northern Canola Growers Association hosted a virtual research conference on Thursday. Throughout the morning, attendees heard about canola fertility trials, blackleg and clubroot resistance, the 2020 breeding program and more. NDSU Extension Entomologist Jan Knodel reflected on insecticide resistance…
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High Densities of Army Worm Discovered in ND Fields

Published July 19, 2020

High densities of army worm are being found in wheat and barley fields in North Dakota. "It started out two weeks ago in the southeast area of North Dakota in a rye cover crop field. Since then, we've had southerly…
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Flea Beetle Pressure Noted in Canola

Published June 19, 2020

Flea beetle pressure is being seen in Langdon and Minot, North Dakota area canola fields. "The seed treatment residual is gone now so when we have a late flush of flea beetles coming out from overwintering, it can cause quite…
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Be Alert for Cutworm Damage

Published May 28, 2020

As soil temps warm up, the newly emerged crops are susceptible to cutworms. North Dakota State University Extension Entomologist Jan Knodel is advising farmers to routinely scout fields for cutworm feeding injury. "You may see cut plants or defoliation." Treatment…
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Dry Bean Scene

Published July 19, 2019

Now is the time during the growing season to be scouting for insects in dry beans. So far, reports of potato leaf hopper and grasshoppers are coming in. Get the details in this week’s Dry Bean Scene, made possible by…
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Northern Corn Rootworm Showing Resistance

Published June 2, 2019

Northern corn rootworm resistance is happening in the most common Bt traits in southeastern North Dakota. NDSU Extension entomologist Jan Knodel says resistant corn rootworm beetles were found at Sargent and Ransom Counties. Knodel says scouting and rotation are key…
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Grasshoppers Make Their Way North

Published July 19, 2018

NDSU Extension Entomologist Jan Knodel has been seeing an increasing population of grasshoppers in southeast North Dakota. "The young grasshoppers are just changing now to adults in that part of North Dakota. It's probably not quite as far along up further…
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Grasshoppers Popping Up in Dry Fields

Published June 28, 2018

NDSU Extension Entomologist Jan Knodel says grasshopper nymphs are showing up in threshold numbers in areas that missed the recent rains. "Mainly near Benson, Steele and Traill counties, there are high populations of young grasshoppers. We do recommend that you…
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Watch for Flea Beetles in Canola

Published May 25, 2018

Canola growers are being reminded to scout their canola fields for flea beetles. NDSU Extension Entomologist Jan Knodel says if you do find threshold levels of flea beetles you need to treat as quickly as possible. "You really need to watch…
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