Crop & Pest Report

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Entomology

Insect Repellent Clothing Means More Protection from Ticks and Mosquitos (06/01/17)

Farmers, ranchers, consultants, scouts, seed inspectors, insurance adjusters, handlers, workers, and especially custom pesticide applicators are routinely subjected to ticks and mosquitos.

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Sugarbeet Root Maggot Update: Peak Fly Expected in Two Weeks (06/01/17)

Most overwintered sugarbeet root maggots (SBRM) are in either the larval or pupal stage in last-year’s sugarbeet fields, and nearly all are within the upper two inches from the soil surface. However, it will not be surprising to see an occasional fly in the next couple of days, with activity picking up significantly by the end of next week.

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Canola Flea Beetles Emerging (06/01/17)

Crucifer and stripped flea beetles are emerging now and can be found in the NE, NC and SW areas of canola in ND.

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IPM Crop Survey Starts (06/01/17)

We have a new group of field scouts for the Integrated Pest Management (IPM) Crop Survey in 2017!

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Cutworms Severe in SW ND (06/01/17)

Severe feeding injury and significant stand loss (several acres per field) from cutworms have been observed in canola, spring wheat, field peas and forages in southwest North Dakota this spring.

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Sugarbeet Root Maggot: Long-Range Forecast (05/25/17)

Sugarbeet Root Maggot (SBRM) fly activity is expected to begin and peak at nearly average dates this year.

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EPA Review of Pyrethroid Bifenthrin (05/25/17)

Bifenthrin provides protection again many chewing and piercing sucking insect pests and spider mites, and is labeled on over 120 crops nationwide.

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Alfalfa Weevil Active (05/25/17)

Alfalfa weevil adult and larvae have been reported defoliating alfalfa in Bowman County in southwest ND.

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Label Changes for Belay® Insecticides (5/18/17)

The active ingredient of Belay® insecticide is clothianidin, a third generation neonicotinoid, which has been registered for control of piercing sucking insects including stink bugs, aphids, plant bugs, Colorado potato beetle, leafhoppers and more.

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Watch for Ticks - Lyme Disease Moving West in ND (5/18/17)

With warmer spring weather, ticks are starting to get active and looking for hosts to feed on.

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Cereal Aphids in Winter Wheat (5/11/17)

Cereal aphids, English grain aphids and bird cherry oat aphids, were observed on May 9th in the winter wheat trial at Fargo by Dr. Friskop, NDSU Extension Plant Pathologist.

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Armyworm Damage in Wheat (07/07/16)

Field reports of armyworm damaging wheat occurred in Barnes and Ransom counties.

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Wheat Midge Trapping (07/07/16)

NDSU Extension Entomology is cooperating with Montana State University on the wheat midge pheromone trapping network using the PestWeb system.

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Wheat Midge Degree Days Update (07/07/16)

The current degree day map indicates that most (50-90%) of wheat midge females are emerging this week.

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Banded Sunflower Moth Emerging (07/07/16)

Pheromone traps ran by the NDSU Extension IPM scouts have trapped low numbers (<14 moths per trap per week) of banded sunflower moth in Cass, Barnes and Foster counties.

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Scout for Lygus Bugs in Pulse Crops (06/30/16)

Tarnished plant bug, Lygus lineolaris, is one of the more common species of Lygus bugs and is known to feed on over 385 crops and weed plants.

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Leafy Spurge Flea Beetles - DD Update (06/30/16)

Accumulated growing degree days (AGDD) from NDAWN (sunflower degree days/growth stage application) indicated that we are at optimal time to collected flea beetles between 1,200 and 1,600 AGDD.

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Wheat Midge Degree Days Update (06/30/16)

The current degree day map indicates that 10-50% of wheat midge females are emerging.

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Time to Scout for Soybean Aphids (06/30/16)

Over 100 soybean fields were surveyed by the IPM Survey scouts last two weeks in ND and MN (Source: P. Glogoza for MN).

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Ground Nesting Bees (06/30/16)

Extension Entomology has received several calls about bees nesting in the ground.

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